Last Friday of each month: Difference between revisions
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=={{header|SQL}}== |
=={{header|SQL}}== |
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<lang SQL> |
<lang SQL> |
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select to_char( next_day( last_day( add_months( to_date( |
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select |
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:yr||'01','yyyymm' ),level-1))-7,'Fri') ,'yyyy-mm-dd Dy') lastfriday |
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to_char( max( trunc( to_date ( :yr, 'yyyy' ), 'yyyy' ) + level - 1 ), |
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'yyyy-mm-dd Dy' ) lastfriday |
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from dual |
from dual |
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connect by level <= 12; |
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where |
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to_char ( trunc( to_date ( :yr, 'yyyy' ), 'yyyy' ) + level - 1, 'Dy' ) = 'Fri' |
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connect by level < trunc( to_date ( :yr + 1 , 'yyyy' ), 'yyyy') |
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- trunc( to_date ( :yr, 'yyyy' ) ,'yyyy' ) + 1 |
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group by |
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to_char( trunc( to_date ( :yr, 'yyyy' ), 'yyyy' ) + level - 1, 'yyyymm' ) |
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order by 1 |
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</lang> |
</lang> |
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<pre> |
<pre> |
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