我的桌子是
sh_name | sh_count |了Shoba
1 | 3 | 1
2 | 7 | 1
3 | 2 | 1
1 | 6 | 2
2 | 5 | 2
3 | 3 | 2
我想在shoba 2中将字段sh_name中的最大记录从3更新为11 我使用此代码但无法正常工作
UPDATE表SET sh_count = 11其中sh_name =(从表格中选择max(sh_name),其中shoba = 2)
答案 0 :(得分:0)
如果您只想更新一行,则需要重复shoba = 2
条件,如下所示:
UPDATE sheet SET sh_count = 11
WHERE sh_name = (SELECT MAX(sh_name) FROM sheet WHERE shoba = 2)
AND shoba = 2