84669 person learning
152542 person learning
20005 person learning
5487 person learning
7821 person learning
359900 person learning
3350 person learning
180660 person learning
48569 person learning
18603 person learning
40936 person learning
1549 person learning
1183 person learning
32909 person learning
求个SQL语句,如图中meta_value数值大于70的,自动让他减去70
如:
56,那么不变 78,那么78-70,让他变成8
补充:谢谢,加个判断条件,meta_key中必须是"views"才用上面的减法呢
UPDATE tblname SET field=field-70 WHERE field>70
UPDATE wp_postmeta SET meta_value=meta_value-70 WHERE meta_value>70 and meta_key="views";
UPDATE wp_postmeta SET meta_value=meta_value-70 WHERE meta_value>70 and meta_key="views";