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【PostgreSQL】TimestampをDateに変換する

Last updated at Posted at 2017-11-01

変換方法

CAST演算子で変換する方法（推奨）

sql
CAST(column1 AS DATE)

※column1はTimestamp型とします。

TO_CHARでCHAR型に変換した後、TO_DATEでDATE型に変換する方法

sql
TO_DATE(TO_CHAR(column1, 'YYYY/MM/DD'),'YYYY/MM/DD')

※column1はTimestamp型とします。

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