Table creation/Postal addresses
You are encouraged to solve this task according to the task description, using any language you may know.
In this task, the goal is to create a table to store addresses. You may assume that all the addresses to be stored will be located in the USA. As such, you will need (in addition to a field holding a unique identifier) a field holding the street address, a field holding the city, a field holding the state code, and a field holding the zipcode. Choose appropriate types for each field.
For non-database languages, show how you would open a connection to a database (your choice of which) and create an address table in it. You should follow the existing models here for how you would structure the table.
ALGOL 68
<lang algol68>MODE ADDRESS = STRUCT( INT page, FLEX[50]CHAR street, FLEX[25]CHAR city, FLEX[2]CHAR state, FLEX[10]CHAR zip ); FORMAT address repr = $"Page: "gl"Street: "gl"City: "gl"State: "gl"Zip: "gll$;
INT errno; FILE sequence; errno := open(sequence, "sequence.txt", stand back channel); SEMA sequence sema := LEVEL 1;
OP NEXTVAL = ([]CHAR table name)INT: (
INT out;
# INT table page = 0; # # only one sequence implemented #
# DOWN sequence sema; # # NO interprocess concurrency protection #
on open error(sequence,
(REF FILE f)BOOL: (
reset(sequence); #set(table page,1,1);#
put(sequence, 0);
try again;
FALSE
)
);
try again:
reset(sequence); #set(table page,1,1);# get(sequence,out);
out +:=1;
reset(sequence); #set(table page,1,1);# put(sequence,out);
# UP sequence sema; #
out
);
OP INIT = (REF ADDRESS self)REF ADDRESS: ( page OF self := NEXTVAL "address"; self);
REF ADDRESS john brown = INIT LOC ADDRESS;
john brown := (page OF john brown, "10 Downing Street","London","England","SW1A 2AA");
printf((address repr, john brown));
FILE address table; errno := open(address table,"address.txt",stand back channel);
- set(address table, page OF john brown,1,1); - standard set page not available in a68g #
put bin(address table, john brown); close(address table)</lang> Output:
Page: +1 Street: 10 Downing Strreet City: London State: England Zip: SW1A 2AA
Apache Derby
<lang SQL>create table Address (
addrID integer primary key generated by default as identity, addrStreet varchar(50) not null, addrCity varchar(50) not null, addrState char(2) not null, addrZip char(10) not null
); </lang> Interactive session:
$ ij
ij version 10.8
ij> connect 'jdbc:derby:postal_addresses;create=true';
ij> create table Address (
> addrID integer primary key generated by default as identity,
> addrStreet varchar(50) not null,
> addrCity varchar(50) not null,
> addrState char(2) not null,
> addrZip char(10) not null
> );
0 rows inserted/updated/deleted
ij> show connections;
CONNECTION0* - jdbc:derby:postal_addresses
* = current connection
ij> describe address;
COLUMN_NAME |TYPE_NAME|DEC&|NUM&|COLUM&|COLUMN_DEF|CHAR_OCTE&|IS_NULL&
------------------------------------------------------------------------------
ADDRID |INTEGER |0 |10 |10 |GENERATED&|NULL |NO
ADDRSTREET |VARCHAR |NULL|NULL|50 |NULL |100 |NO
ADDRCITY |VARCHAR |NULL|NULL|50 |NULL |100 |NO
ADDRSTATE |CHAR |NULL|NULL|2 |NULL |4 |NO
ADDRZIP |CHAR |NULL|NULL|10 |NULL |20 |NO
5 rows selected
ij> exit;
$ dblook -d jdbc:derby:postal_addresses
-- Timestamp: 2012-07-17 14:27:02.822
-- Source database is: postal_addresses
-- Connection URL is: jdbc:derby:postal_addresses
-- appendLogs: false
-- ----------------------------------------------
-- DDL Statements for tables
-- ----------------------------------------------
CREATE TABLE "APP"."ADDRESS" ("ADDRID" INTEGER NOT NULL GENERATED BY DEFAULT AS IDENTITY (START WITH 1, INCREMENT BY 1), "ADDRSTREET" VARCHAR(50) NOT NULL, "ADDRCITY" VARCHAR(50) NOT NULL, "ADDRSTATE" CHAR(2) NOT NULL, "ADDRZIP" CHAR(10) NOT NULL);
-- ----------------------------------------------
-- DDL Statements for keys
-- ----------------------------------------------
-- primary/unique
ALTER TABLE "APP"."ADDRESS" ADD CONSTRAINT "SQL120717142048690" PRIMARY KEY ("ADDRID");
AWK
SQLite3
This version uses the AWK pipe, 'getline' function, and the sqlite3 command line program.
<lang awk>#!/bin/sh -f awk ' BEGIN {
print "Creating table..."
dbExec("address.db", "create table address (street, city, state, zip);")
print "Done."
exit
}
function dbExec(db, qry, result) {
dbMakeQuery(db, qry) | getline result dbErrorCheck(result)
}
function dbMakeQuery(db, qry, q) {
q = dbEscapeQuery(qry) ";" return "echo \"" q "\" | sqlite3 " db
}
function dbEscapeQuery(qry, q) {
q = qry gsub(/"/, "\\\"", q) return q
}
function dbErrorCheck(res) {
if (res ~ "SQL error") {
print res
exit
}
}
'</lang>
C
<lang c>#include <stdio.h>
- include <stdlib.h>
- include <sqlite3.h>
const char *code = "CREATE TABLE address (\n" " addrID INTEGER PRIMARY KEY AUTOINCREMENT,\n" " addrStreet TEXT NOT NULL,\n" " addrCity TEXT NOT NULL,\n" " addrState TEXT NOT NULL,\n" " addrZIP TEXT NOT NULL)\n" ;
int main() {
sqlite3 *db = NULL;
char *errmsg;
if ( sqlite3_open("address.db", &db) == SQLITE_OK ) {
if ( sqlite3_exec(db, code, NULL, NULL, &errmsg) != SQLITE_OK ) {
fprintf(stderr, errmsg);
sqlite3_free(errmsg);
sqlite3_close(db);
exit(EXIT_FAILURE);
}
sqlite3_close(db);
} else {
fprintf(stderr, "cannot open db...\n");
sqlite3_close(db);
exit(EXIT_FAILURE);
}
return EXIT_SUCCESS;
}</lang>
Clojure
<lang clojure>(require '[clojure.java.jdbc :as sql])
- Using h2database for this simple example.
(def db {:classname "org.h2.Driver"
:subprotocol "h2:file"
:subname "db/my-dbname"})
(sql/db-do-commands db
(sql/create-table-ddl :address [:id "bigint primary key auto_increment"] [:street "varchar"] [:city "varchar"] [:state "varchar"] [:zip "varchar"]))
</lang>
DB2 UDB
<lang sql>CREATE TABLE Address ( addrID Integer generated by default as identity, addrStreet Varchar(50) not null, addrCity Varchar(25) not null, addrState Char(2) not null, addrZIP Char(10) not null )</lang>
EchoLisp
<lang scheme> (lib 'struct) (lib 'sql)
(define Postal (make-table
(struct postal (auto: id name street city state zip))))
Postal
→ #table:#struct:postal [id name street city state zip]:[0]
(table-insert Postal '(0 Gallubert "29 rue de l'Ermitage" Paris Seine 75020)) (table-insert Postal '(0 Brougnard "666 rue des Cascades " Paris Seine 75042)) (table-make-index Postal 'postal.id) (table-print Postal)
[0] 15 Gallubert 29 rue de l'Ermitage Paris Seine 75020 [1] 16 Brougnard 666 rue des Cascades Paris Seine 75042 </lang>
Erlang
Erlang has built in databases. This is the the one with most features: Mnesia. There are database connectors to other databases, too. <lang Erlang> -module( table_creation ).
-export( [task/0] ).
-record( address, {id, street, city, zip} ).
task() -> mnesia:start(), mnesia:create_table( address, [{attributes, record_info(fields, address)}] ). </lang>
- Output:
3> table_creation:task().
{atomic,ok}
FunL
FunL has built-in support for H2 and comes bundled with the H2 database engine. <lang funl>import db.* import util.*
Class.forName( 'org.h2.Driver' ) conn = DriverManager.getConnection( 'jdbc:h2:mem:test', 'sa', ) statement = conn.createStatement()
statement.execute(
CREATE TABLE `user_data` ( `id` identity, `name` varchar(255) NOT NULL, `street` varchar(255) NOT NULL, `city` varchar(255) NOT NULL, `region` char(2) NOT NULL, `country` char(2) NOT NULL, `code` varchar(20) NOT NULL, `phone` varchar(20) NOT NULL, PRIMARY KEY (`id`) ) )
statement.execute(
INSERT INTO `user_data` (`name`, `street`, `city`, `region`, `code`, `country`, `phone`) VALUES
('Jacinthe Steinert', '8540 Fallen Pony Villas', 'Searights', 'IA', '51584-4315', 'US', '(641) 883-4342'),
('Keeley Pinkham', '1363 Easy Downs', 'Mileta', 'TX', '77667-7376', 'US', '(469) 527-4784'),
('Rimon Cleveland', '8052 Blue Pond Dale', 'The Willows', 'UT', '84630-2674', 'US', '(385) 305-7261'),
('Berenice Benda', '2688 Merry Pines', 'Dacono', 'HI', '96766-7398', 'US', '(808) 451-2732'),
('Mehetabel Marcano', '109 Sleepy Goose Crescent', 'Plains', 'UT', '84727-7254', 'US', '(385) 733-8404'),
('Ambria Schiller', '7100 Tawny Robin Highway', 'Barlowes', 'ID', '83792-2043', 'US', '(208) 227-8887'),
('Carne Cancino', '3842 Broad Pioneer Cape', 'Bardstown', 'IA', '51571-6473', 'US', '(563) 060-8352'),
('Ince Leite', '7876 Stony Fawn Boulevard', 'Easton', 'ID', '83651-9235', 'US', '(208) 951-3024'),
('Britney Odell', '3386 Lazy Shadow Thicket', 'Kimberly', 'OK', '73539-6632', 'US', '(539) 848-4448'),
('Suprabha Penton', '9311 Dusty Leaf Alley', 'Niumalu', 'GA', '39927-8332', 'US', '(404) 589-0183') )
result = statement.executeQuery( SELECT * FROM user_data WHERE region = 'ID' ORDER BY code ) print( TextTable.apply(result) )
conn.close()</lang>
- Output:
+----+-----------------+---------------------------+----------+--------+---------+------------+----------------+ | ID | NAME | STREET | CITY | REGION | COUNTRY | CODE | PHONE | +----+-----------------+---------------------------+----------+--------+---------+------------+----------------+ | 8 | Ince Leite | 7876 Stony Fawn Boulevard | Easton | ID | US | 83651-9235 | (208) 951-3024 | | 6 | Ambria Schiller | 7100 Tawny Robin Highway | Barlowes | ID | US | 83792-2043 | (208) 227-8887 | +----+-----------------+---------------------------+----------+--------+---------+------------+----------------+
Go
<lang go>package main
import (
"database/sql" "fmt" "log"
_ "github.com/mattn/go-sqlite3"
)
func main() {
// task req: show database connection
db, err := sql.Open("sqlite3", "rc.db")
if err != nil {
log.Print(err)
return
}
defer db.Close()
// task req: create table with typed fields, including a unique id
_, err = db.Exec(`create table addr (
id int unique,
street text,
city text,
state text,
zip text
)`)
if err != nil {
log.Print(err)
return
}
// show output: query the created field names and types
rows, err := db.Query(`pragma table_info(addr)`)
if err != nil {
log.Print(err)
return
}
var field, storage string
var ignore sql.RawBytes
for rows.Next() {
err = rows.Scan(&ignore, &field, &storage, &ignore, &ignore, &ignore)
if err != nil {
log.Print(err)
return
}
fmt.Println(field, storage)
}
}</lang>
- Output:
id int street text city text state text zip text
Haskell
<lang haskell>{-# LANGUAGE OverloadedStrings #-}
import Database.SQLite.Simple
main = do
db <- open "postal.db"
execute_ db "\
\CREATE TABLE address (\
\addrID INTEGER PRIMARY KEY AUTOINCREMENT, \
\addrStreet TEXT NOT NULL, \
\addrCity TEXT NOT NULL, \
\addrState TEXT NOT NULL, \
\addrZIP TEXT NOT NULL \
\)"
close db</lang>
J
J is a programming language, not a database, but it ships with a database built in the programming language called JDB. Using that, assuming hd is your database, then:
<lang j> Create__hd 'Address';noun define addrID autoid; addrStreet varchar addrCity varchar addrState char addrZip char )</lang>
Of course J can connect external databases too, using e.g. ODBC. See the list of J database topics.
Lasso
Lasso has excellent support for connecting to and handling databases.
<lang Lasso>// connect to a Mysql database inline(-database = 'rosettatest', -sql = "CREATE TABLE `address` (
`id` int(11) NOT NULL auto_increment, `street` varchar(50) NOT NULL default , `city` varchar(25) NOT NULL default , `state` char(2) NOT NULL default , `zip` char(10) NOT NULL default , PRIMARY KEY (`id`)
); ") => {^ error_msg ^}</lang> Output:
No error
Mathematica
<lang Mathematica>TableCreation="CREATE TABLE address ( addrID INTEGER PRIMARY KEY AUTOINCREMENT, addrStreet TEXT NOT NULL, addrCity TEXT NOT NULL, addrState TEXT NOT NULL, addrZIP TEXT NOT NULL )";
Needs["DatabaseLink`"] conn=OpenSQLConnection[ JDBC[ "mysql","databases:1234/conn_test"], "Username" -> "test"] SQLExecute[ conn, TableCreation]</lang>
MySQL
<lang mysql>CREATE TABLE `Address` (
`addrID` int(11) NOT NULL auto_increment, `addrStreet` varchar(50) NOT NULL default , `addrCity` varchar(25) NOT NULL default , `addrState` char(2) NOT NULL default , `addrZIP` char(10) NOT NULL default , PRIMARY KEY (`addrID`)
);</lang>
NetRexx
As NetRexx targets the Java Virtual Machine it has access to a wealth of database tools many of which can be accessed through JDBC.
Apache Derby
This sample creates a table in an embedded Apache Derby database. <lang NetRexx>/* NetRexx */ options replace format comments java crossref symbols binary
import java.sql.Connection import java.sql.Statement import java.sql.SQLException import java.sql.DriverManager
class RTableCreate01 public
properties private constant
addressDDL = String -
' create table Address' -
' (' -
' addrID integer primary key generated by default as identity,' -
' addrStreet varchar(50) not null,' -
' addrCity varchar(50) not null,' -
' addrState char(2) not null,' -
' addrZip char(10) not null' -
' )'
driver = String 'org.apache.derby.jdbc.EmbeddedDriver'
dbName = String 'db/rosetta_code'
method createTable() public static
connectionURL = String
conn = java.sql.Connection
sqlStatement = java.sql.Statement
do
Class.forName(driver)
connectionURL = 'jdbc:derby:' || dbName || ';' || 'create=true'
conn = DriverManager.getConnection(connectionURL)
sqlStatement = conn.createStatement()
say 'Creating table'
sqlStatement.execute(addressDDL)
say 'Table creation complete'
sqlStatement.close()
conn.close()
do
-- In embedded mode, an application should shut down Derby.
-- Shutdown throws the XJ015 exception to confirm success.
connectionURL = 'jdbc:derby:' || ';' || 'shutdown=true'
DriverManager.getConnection(connectionURL)
catch sex = SQLException
if sex.getSQLState().equals("XJ015") then do
say 'Database shut down normally'
end
else do
say 'Database did not shut down normally'
signal sex
end
end
catch sex = SQLException
sex.printStackTrace()
catch ex = ClassNotFoundException
ex.printStackTrace()
end
return
method main(args = String[]) public static createTable() return
</lang>
Nim
<lang nim>import db_sqlite as db
- import db_mysql as db
- import db_postgres as db
const
connection = ":memory:" user = "foo" pass = "bar" database = "db"
var c = open(connection, user, pass, database) c.exec sql"""CREATE TABLE address (
addrID INTEGER PRIMARY KEY AUTOINCREMENT, addrStreet TEXT NOT NULL, addrCity TEXT NOT NULL, addrState TEXT NOT NULL, addrZIP TEXT NOT NULL)"""
c.close()</lang>
ooRexx
<lang oorexx>/* REXX ***************************************************************
- 17.05.2013 Walter Pachl translated from REXX version 2
- nice try? improvements are welcome as I am rather unexperienced
- 18.05.2013 the array may contain a variety of objects!
- /
alist=.array~new alist[1]=.addr~new('Boston','MA','51 Franklin Street',,'FSF Inc.',,
'02110-1301')
alist[2]='not an address at all' alist[3]=.addr~new('Washington','DC','The Oval Office',,
'1600 Pennsylvania Avenue NW','The White House',20500)
Do i=1 To alist~items
a=alist[i] If a~isinstanceof(.addr) Then a~show End
- class addr
::attribute city ::attribute state ::attribute addr ::attribute addr2 ::attribute name ::attribute zip
- method init
Parse Arg self~city,,
self~state,,
self~addr,,
self~addr2,,
self~name,,
self~zip
- method show
Say ' name -->' self~name
Say ' addr -->' self~addr
If self~addr2<> Then Say ' addr2 -->' self~addr2
Say ' city -->' self~city
Say ' state -->' self~state
Say ' zip -->' self~zip
Say copies('-',40)</lang>
Output is as for REXX version 2
Oracle
<lang sql>CREATE SEQUENCE seq_address_pk START BY 100 INCREMENT BY 1 / CREATE TABLE address (
addrID NUMBER DEFAULT seq_address_pk.nextval, street VARCHAR2( 50 ) NOT NULL, city VARCHAR2( 25 ) NOT NULL, state VARCHAR2( 2 ) NOT NULL, zip VARCHAR2( 20 ) NOT NULL, CONSTRAINT address_pk1 PRIMARY KEY ( addrID )
) /</lang>
Oz
The SQLite version that comes with Ozsqlite does not understand "AUTOINCREMENT". <lang oz>declare
[Sqlite] = {Module.link ['x-ozlib:/sqlite/Sqlite.ozf']}
DB = {Sqlite.open 'test.db'}
in
try
{Sqlite.exec DB
"CREATE TABLE address ("
#"addrID INTEGER PRIMARY KEY,"
#"addrStreet TEXT NOT NULL,"
#"addrCity TEXT NOT NULL,"
#"addrState TEXT NOT NULL,"
#"addrZIP TEXT NOT NULL"
#")" _}
catch E then
{Inspector.configure widgetShowStrings true}
{Inspect E}
finally
{Sqlite.close DB}
end</lang>
Perl
<lang perl>use DBI;
my $db = DBI->connect('DBI:mysql:database:server','login','password');
my $statment = <<EOF; CREATE TABLE `Address` (
`addrID` int(11) NOT NULL auto_increment, `addrStreet` varchar(50) NOT NULL default , `addrCity` varchar(25) NOT NULL default , `addrState` char(2) NOT NULL default , `addrZIP` char(10) NOT NULL default , PRIMARY KEY (`addrID`)
); EOF
my $exec = $db->prepare($statment); $exec->execute;</lang>
This example uses mysql, but DBI supports a extensive list of database drivers. See dbi.perl.org for more info.
PHP +SQLite
not tested <lang php><?php $db = new SQLite3(':memory:'); $db->exec("
CREATE TABLE address (
addrID INTEGER PRIMARY KEY AUTOINCREMENT,
addrStreet TEXT NOT NULL,
addrCity TEXT NOT NULL,
addrState TEXT NOT NULL,
addrZIP TEXT NOT NULL
)
"); ?></lang>
PicoLisp
PicoLisp has built-in database functionality, in the form of (non-relational) entity/relations, built on top of persistent objects (so-called external symbols)
Define an "address" entity, and create the database: <lang PicoLisp>(class +Adr +Entity) (rel nm (+Sn +Idx +String)) # Name [Soundex index] (rel str (+String)) # Street (rel zip (+Ref +String)) # ZIP [Non-unique index] (rel cit (+Fold +Idx +String)) # City [Folded substring index] (rel st (+String)) # State (rel tel (+Fold +Ref +String)) # Phone [Folded non-unique index] (rel em (+Ref +String)) # EMail [Non-unique index] (rel txt (+Blob)) # Memo (rel jpg (+Blob)) # Photo
(pool "address.db") # Create database</lang> Create a first entry, and show it: <lang PicoLisp>(show
(new! '(+Adr) # Create a record
'nm "FSF Inc."
'str "51 Franklin St"
'st "Boston, MA"
'zip "02110-1301" ) )</lang>
Output:
{2} (+Adr)
zip "02110-1301"
st "Boston, MA"
str "51 Franklin St"
nm "FSF Inc."
Interactive "select": <lang PicoLisp>(select nm zip +Adr nm "FSF") # Select name, zip from Adr where name = FSF*</lang> Output:
"FSF Inc." "02110-1301" {2}
PostgreSQL
<lang sql>CREATE SEQUENCE address_seq start 100; CREATE TABLE address (
addrID int4 PRIMARY KEY DEFAULT nextval('address_seq'),
street varchar(50) not null,
city varchar(25) not null,
state varchar(2) not null,
zip varchar(20) not null
);</lang>
PureBasic +SQLite
Easiest approach with sqlite. Further possible: PostgresQL or each other over ODBC. <lang Purebasic> UseSQLiteDatabase() Procedure CheckDatabaseUpdate(Database, Query$)
Result = DatabaseUpdate(Database, Query$)
If Result = 0
Print(DatabaseError())
EndIf
ProcedureReturn Result
EndProcedure openconsole() DatabaseFile$ = GetCurrentDirectory()+"/rosettadb.sdb" If CreateFile(0, DatabaseFile$)
CloseFile(0)
If OpenDatabase(0, DatabaseFile$, "", "")
CheckDatabaseUpdate(0,"CREATE TABLE address ( addrID INTEGER PRIMARY KEY AUTOINCREMENT, addrStreet TEXT Not NULL, addrCity TEXT Not NULL, addrState TEXT Not NULL, addrZIP TEXT Not NULL)")
CloseDatabase(0)
Else
print("Can't open database !")
EndIf
Else
print("Can't create the database file !")
EndIf closeconsole() </lang>
PowerShell +SQLite
<lang PowerShell> Import-Module -Name PSSQLite
- Create a database and a table
$dataSource = ".\Addresses.db" $query = "CREATE TABLE SSADDRESS (Id INTEGER PRIMARY KEY AUTOINCREMENT,
LastName TEXT NOT NULL,
FirstName TEXT NOT NULL,
Address TEXT NOT NULL,
City TEXT NOT NULL,
State CHAR(2) NOT NULL,
Zip CHAR(5) NOT NULL
)"
Invoke-SqliteQuery -Query $Query -DataSource $DataSource
- Insert some data
$query = "INSERT INTO SSADDRESS ( FirstName, LastName, Address, City, State, Zip)
VALUES (@FirstName, @LastName, @Address, @City, @State, @Zip)"
Invoke-SqliteQuery -DataSource $DataSource -Query $query -SqlParameters @{
LastName = "Monster"
FirstName = "Cookie"
Address = "666 Sesame St"
City = "Holywood"
State = "CA"
Zip = "90013"
}
- View the data
Invoke-SqliteQuery -DataSource $DataSource -Query "SELECT * FROM SSADDRESS" </lang PowerShell>
- Output:
Id : 1 LastName : Monster FirstName : Cookie Address : 666 Sesame St City : Holywood State : CA Zip : 90013
Python +SQLite
<lang python>>>> import sqlite3 >>> conn = sqlite3.connect(':memory:') >>> conn.execute(CREATE TABLE address ( addrID INTEGER PRIMARY KEY AUTOINCREMENT, addrStreet TEXT NOT NULL, addrCity TEXT NOT NULL, addrState TEXT NOT NULL, addrZIP TEXT NOT NULL
))
<sqlite3.Cursor object at 0x013265C0> >>> </lang>
Racket
Racket supports a bunch of DBs, this is using sqlite, which is almost always available. Also included some further demonstrations beyond just the table creation:
<lang Racket>
- lang at-exp racket
(require db) (define postal (sqlite3-connect #:database "/tmp/postal.db" #:mode 'create))
(define (add! name street city state zip)
(query-exec postal
@~a{INSERT INTO addresses (name, street, city, state, zip)
VALUES (?, ?, ?, ?, ?)}
name street city state zip))
(unless (table-exists? postal "addresses")
(query-exec postal
@~a{CREATE TABLE addresses(
id INTEGER PRIMARY KEY,
name TEXT NOT NULL,
street TEXT NOT NULL,
city TEXT NOT NULL,
state TEXT NOT NULL,
zip TEXT NOT NULL)}))
(add! "FSF Inc."
"51 Franklin St"
"Boston"
"MA"
"02110-1301")
(add! "The White House"
"1600 Pennsylvania Avenue NW"
"Washington"
"DC"
"20500")
(add! "National Security Council"
"1700 Pennsylvania Avenue NW"
"Washington"
"DC"
"20500")
(printf "Addresses:\n") (for ([r (query-rows postal "SELECT * FROM addresses")])
(printf " ~a.\n" (string-join (cdr (vector->list r)) ", ")))
(newline)
(printf "By State+ZIP:\n") (for ([z (query-rows postal "SELECT * FROM addresses"
#:group #("state" "zip"))])
(printf " ~a, ~a:\n" (vector-ref z 0) (vector-ref z 1))
(for ([r (vector-ref z 2)])
(printf " ~a.\n" (string-join (cdr (vector->list r)) ", "))))
(disconnect postal) </lang>
Output:
Addresses:
FSF Inc., 51 Franklin St, Boston, MA, 02110-1301.
The White House, 1600 Pennsylvania Avenue NW, Washington, DC, 20500.
National Security Council, 1700 Pennsylvania Avenue NW, Washington, DC, 20500.
By State+ZIP:
MA, 02110-1301:
FSF Inc., 51 Franklin St, Boston.
DC, 20500:
The White House, 1600 Pennsylvania Avenue NW, Washington.
National Security Council, 1700 Pennsylvania Avenue NW, Washington.
REXX
version 1
A REXX program can call SQL or any other database system, but the version shown here is a RYO (roll your own).
Practically no error checking (for invalid fields, etc.) has been coded.
The fields are for the most part, USA specific, but could be expanded
for other countries.
In addition to "state", fields such as province, municipality, ward,
parish, country, etc) could be added without exclusion.
A logging facility is included which tracks who (by userID) did what update (or change), along with a timestamp.
╔═════════════════════════════════════════════════════════════════════════════════╗ ╟───── Format of an entry in the USA address/city/state/zip code structure: ──────╢ ║ ║ ║ The "structure" name can be any legal variable name, but here the name will be ║ ║ shortened to make these comments (and program) easier to read; its name will ║ ║ be @USA (in any letter case). In addition, the following variable names ║ ║ (stemmed array tails) will need to be kept uninitialized (that is, not used ║ ║ for any variable name). To that end, each of these variable names will have an ║ ║ underscore in the beginning of each name. Other possibilities are to have a ║ ║ trailing underscore (or both leading and trailing), or some other special eye─ ║ ║ catching character such as: ! @ # $ ? ║ ║ ║ ║ Any field not specified will have a value of "null" (which has a length of 0). ║ ║ ║ ║ Any field can contain any number of characters, this can be limited by the ║ ║ restrictions imposed by the standards or the USA legal definitions. ║ ║ Any number of fields could be added (with testing for invalid fields). ║ ╟─────────────────────────────────────────────────────────────────────────────────╢ ║ @USA.0 the number of entries in the @USA stemmed array. ║ ║ ║ ║ nnn is some positive integer of any length (no leading zeroes). ║ ╟─────────────────────────────────────────────────────────────────────────────────╢ ║ @USA.nnn._name is the name of person, business, or a lot description. ║ ╟─────────────────────────────────────────────────────────────────────────────────╢ ║ @USA.nnn._addr is the 1st street address ║ ║ @USA.nnn._addr2 is the 2nd street address ║ ║ @USA.nnn._addr3 is the 3rd street address ║ ║ @USA.nnn._addrNN ··· (any number, but in sequential order) . ║ ╟─────────────────────────────────────────────────────────────────────────────────╢ ║ @USA.nnn._state is the USA postal code for the state, territory, etc. ║ ╟─────────────────────────────────────────────────────────────────────────────────╢ ║ @USA.nnn._city is the official city name, it may include any character. ║ ╟─────────────────────────────────────────────────────────────────────────────────╢ ║ @USA.nnn._zip is the USA postal zip code (five or ten digit format). ║ ╟─────────────────────────────────────────────────────────────────────────────────╢ ║ @USA.nnn._upHist is the update history (who, date, and timestamp). ║ ╚═════════════════════════════════════════════════════════════════════════════════╝
<lang rexx>/*REXX program creates, builds, and displays a table of given U.S.A. postal addresses.*/ @usa.=; @usa.0=0 /*initialize stemmed array & 1st value.*/ @usa.0=@usa.0+1 /*bump the unique number for usage. */
call USA '_city' , 'Boston'
call USA '_state' , 'MA'
call USA '_addr' , "51 Franklin Street"
call USA '_name' , "FSF Inc."
call USA '_zip' , '02110-1301'
@usa.0=@usa.0+1 /*bump the unique number for usage. */
call USA '_city' , 'Washington'
call USA '_state' , 'DC'
call USA '_addr' , "The Oval Office"
call USA '_addr2' , "1600 Pennsylvania Avenue NW"
call USA '_name' , "The White House"
call USA '_zip' , 20500
call USA 'list'
exit /*stick a fork in it, we're all done. */ /*──────────────────────────────────────────────────────────────────────────────────────*/ list: call tell '_name'
call tell '_addr'
do j=2 until $==; call tell "_addr"j; end /*j*/
call tell '_city'
call tell '_state'
call tell '_zip'
say copies('─', 40)
return
/*──────────────────────────────────────────────────────────────────────────────────────*/ tell: $=value('@USA.'#"."arg(1));if $\= then say right(translate(arg(1),,'_'),6) "──►" $
return
/*──────────────────────────────────────────────────────────────────────────────────────*/ USA: procedure expose @USA.; parse arg what,txt; arg ?; @='@USA.'
if ?=='LIST' then do #=1 for @usa.0; call list; end /*#*/
else do
call value @ || @usa.0 || . || what , txt
call value @ || @usa.0 || . || 'upHist', userid() date() time()
end
return</lang>
output (data used is within the REXX program):
name ──► FSF Inc. addr ──► 51 Franklin Street city ──► Boston state ──► MA zip ──► 02110-1301 ──────────────────────────────────────── name ──► The White House addr ──► The Oval Office addr2 ──► 1600 Pennsylvania Avenue NW city ──► Washington state ──► DC zip ──► 20500 ────────────────────────────────────────
version 2
<lang rexx>/* REXX ***************************************************************
- 17.05.2013 Walter Pachl
- should work with every REXX.
- I use 0xxx for the tail because this can't be modified
- /
USA.=; USA.0=0 Call add_usa 'Boston','MA','51 Franklin Street',,'FSF Inc.',,
'02110-1301'
Call add_usa 'Washington','DC','The Oval Office',,
'1600 Pennsylvania Avenue NW','The White House',20500
call list_usa Exit
add_usa: z=usa.0+1 Parse Arg usa.z.0city,,
usa.z.0state,,
usa.z.0addr,,
usa.z.0addr2,,
usa.z.0name,,
usa.z.0zip
usa.0=z Return
list_usa: Do z=1 To usa.0
Say ' name -->' usa.z.0name
Say ' addr -->' usa.z.0addr
If usa.z.0addr2<> Then Say ' addr2 -->' usa.z.0addr2
Say ' city -->' usa.z.0city
Say ' state -->' usa.z.0state
Say ' zip -->' usa.z.0zip
Say copies('-',40)
End
Return</lang>
name --> FSF Inc. addr --> 51 Franklin Street city --> Boston state --> MA zip --> 02110-1301 ---------------------------------------- name --> The White House addr --> The Oval Office addr2 --> 1600 Pennsylvania Avenue NW city --> Washington state --> DC zip --> 20500 ----------------------------------------
Ruby
With PStore
PStore implements a persistent key store with transactions. This is a NoSQL database. Each transaction reads the entire database into memory, and then writes it again, so PStore is not good for large databases.
<lang ruby>require 'pstore' require 'set'
Address = Struct.new :id, :street, :city, :state, :zip
db = PStore.new("addresses.pstore") db.transaction do
db[:next] ||= 0 # Next available Address#id db[:ids] ||= Set[] # Set of all ids in db
end</lang>
To put an Address inside this PStore:
<lang ruby>db.transaction do
id = (db[:next] += 1)
db[id] = Address.new(id,
"1600 Pennsylvania Avenue NW",
"Washington", "DC", 20500)
db[:ids].add id
end</lang>
With SQLite
<lang ruby>require 'sqlite3'
db = SQLite3::Database.new(':memory:') db.execute("
CREATE TABLE address (
addrID INTEGER PRIMARY KEY AUTOINCREMENT,
addrStreet TEXT NOT NULL,
addrCity TEXT NOT NULL,
addrState TEXT NOT NULL,
addrZIP TEXT NOT NULL
)
")</lang>
Run BASIC
AQLite <lang runbasic>sqliteconnect #mem, ":memory:" ' make handle #mem mem$ = " CREATE TABLE address (
addrID INTEGER PRIMARY KEY AUTOINCREMENT, addrStreet TEXT NOT NULL, addrCity TEXT NOT NULL, addrState TEXT NOT NULL, addrZIP TEXT NOT NULL
)"
- mem execute(mem$)</lang>
SAS
<lang sql>
PROC SQL; CREATE TABLE ADDRESS ( ADDRID CHAR(8) ,STREET CHAR(50) ,CITY CHAR(25) ,STATE CHAR(2) ,ZIP CHAR(20) )
- QUIT;
</lang>
Scheme
This example works with Chicken Scheme, using its sql-de-lite library:
<lang scheme> (use sql-de-lite)
(define *db* (open-database "addresses"))
(exec ; create and run the SQL statement
(sql *db*
"CREATE TABLE address (
addrID INTEGER PRIMARY KEY AUTOINCREMENT,
addrStreet TEXT NOT NULL,
addrCity TEXT NOT NULL,
addrState TEXT NOT NULL,
addrZIP TEXT NOT NULL
)"
))
(close-database *db*) ; finally, close database </lang>
Sidef
<lang ruby>require('DBI');
var db = %s'DBI'.connect('DBI:mysql:database:server','login','password');
var statment = <<'EOF'; CREATE TABLE `Address` (
`addrID` int(11) NOT NULL auto_increment, `addrStreet` varchar(50) NOT NULL default , `addrCity` varchar(25) NOT NULL default , `addrState` char(2) NOT NULL default , `addrZIP` char(10) NOT NULL default , PRIMARY KEY (`addrID`)
); EOF
var exec = db.prepare(statment); exec.execute;</lang>
SQLite
Purely in Sqlite3. <lang sqlite3> CREATE TABLE address_USA (
address_ID INTEGER PRIMARY KEY, address_Street TEXT, address_City TEXT, address_State TEXT, address_Zip INTEGER
); </lang>
Tcl +SQLite
<lang tcl>package require sqlite3
sqlite3 db address.db db eval {
CREATE TABLE address (
addrID INTEGER PRIMARY KEY AUTOINCREMENT, addrStreet TEXT NOT NULL, addrCity TEXT NOT NULL, addrState TEXT NOT NULL, addrZIP TEXT NOT NULL
)
}</lang>
Transact-SQL (MSSQL)
<lang sql>CREATE TABLE #Address (
addrID int NOT NULL Identity(1,1) PRIMARY KEY, addrStreet varchar(50) NOT NULL , addrCity varchar(25) NOT NULL , addrState char(2) NOT NULL , addrZIP char(10) NOT NULL
) drop table #Address</lang>
VBScript
<lang vb> Option Explicit
Dim objFSO, DBSource
Set objFSO = CreateObject("Scripting.FileSystemObject")
DBSource = objFSO.GetParentFolderName(WScript.ScriptFullName) & "\postal_address.accdb"
With CreateObject("ADODB.Connection") .Open "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" & DBSource .Execute "CREATE TABLE ADDRESS (STREET VARCHAR(30) NOT NULL," &_ "CITY VARCHAR(30) NOT NULL, STATE CHAR(2) NOT NULL,ZIP CHAR(5) NOT NULL)" .Close End With </lang>
Visual FoxPro
<lang vfp> CLOSE DATABASES ALL CREATE DATABASE usdata.dbc SET NULL OFF CREATE TABLE address.dbf ; (id I AUTOINC NEXTVALUE 1 STEP 1 PRIMARY KEY COLLATE "Machine", ;
street V(50), city V(25), state C(2), zipcode C(10))
CLOSE DATABASES ALL
- !* To use
CLOSE DATABASES ALL OPEN DATABASE usdata.dbc USE address.dbf SHARED </lang>
- Programming Tasks
- Database operations
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