摘要: INTERVAL DAY TO SECOND数据类型 Oracle语法: INTERVAL '{ integer | integer time_expr | time_expr }' { { DAY | HOUR | MINUTE } [ ( leading_precision ) ] | SECOND [ ( leading_precision [, fractional_seconds_precision ] ) ] } [ TO { DAY | HOUR | MINUTE | SECOND [ (fractional_seconds_precision) ] } ] le 阅读全文
posted @ 2011-02-23 08:55 爱生活,爱编程 阅读(8422) 评论(0) 推荐(0)