将一年添加到 postgresql 中的日期字段
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Adding one year to a date field in postgresql
提问by Emilio Galarraga
I have a table in postgresql with a field_date using the syntax 'YYYY-MM-DD', I want to add a year to the field with the the sentence:
我在 postgresql 中有一个带有 field_date 的表,使用语法“YYYY-MM-DD”,我想用以下语句在字段中添加一年:
UPDATE table SET date_field = DATEADD(YEAR, 1, date_field);
更新表 SET date_field = DATEADD(YEAR, 1, date_field);
but postgres return:
但 postgres 返回:
ERROR: column "year" does not exist
错误:“年份”列不存在
I can't see what's wrong with the sentence
我看不出这句话有什么问题
回答by Tim Biegeleisen
Try this:
尝试这个:
UPDATE table SET date_field = date_field + interval '1 year'
It appears that you were trying to use SQL Server's DATEADD()
function, which does not exist in Postgres.
看来您正在尝试使用 SQL Server 的DATEADD()
功能,而 Postgres 中不存在该功能。