随笔分类 -  SQL

sql学习笔记（乘除法、查询结果分别显示即case和union函数用法）
摘要：sql乘除法： SELECT c.description AS crewname , wo.worktype AS worktype , conn.con AS con, conwc.conw AS conwc, cast(ROUND(COALESCE(cast(conwc.conw as deci 阅读全文

posted @ 2017-02-04 14:52 binTke 阅读(611) 评论(0) 推荐(0)

导航