可以在MySQL表中移动行数据吗?
我想将单元格值向右移动,然后更新[row1,col1] 之前:可以在MySQL表中移动行数据吗?,mysql,Mysql,我想将单元格值向右移动,然后更新[row1,col1] 之前: +----------------+------------------+------------------+------------------+ | id(VARCHAR 20) | col1(VARCHAR 10) | col2(VARCHAR 10) | col3(VARCHAR 10) | +----------------+------------------+------------------+----------
+----------------+------------------+------------------+------------------+
| id(VARCHAR 20) | col1(VARCHAR 10) | col2(VARCHAR 10) | col3(VARCHAR 10) |
+----------------+------------------+------------------+------------------+
| row1 | john | jane | jeff |
+----------------+------------------+------------------+------------------+
| row2 | some | other | stuff |
+----------------+------------------+------------------+------------------+
之后:
+----------------+------------------+------------------+------------------+
| id(VARCHAR 20) | col1(VARCHAR 10) | col2(VARCHAR 10) | col3(VARCHAR 10) |
+----------------+------------------+------------------+------------------+
| row1 | sue* | john | jane |
+----------------+------------------+------------------+------------------+
| row2 | some | other | stuff |
+----------------+------------------+------------------+------------------+
*Sue被插入,前一行的值被向右移动,“jeff”被弹出,可以说,进入了以太;列数是固定的
我问了一个类似的问题,但我想将我的桌子设计旋转90°
提前感谢。这应该适合您:
update table t
set col3 = col2,
col2 = col1,
col1 = 'sue'
where id = 'row1';
你为什么要这样做?这强烈表明您没有正确使用关系数据库。