SET @v1 := SELECT COUNT(*) FROM user_rating;
SELECT @v1
Khi tôi thực hiện truy vấn này với biến số set
, lỗi này được hiển thị.Cách lưu kết quả truy vấn bằng biến mysql
Error Code : 1064
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use
near 'SELECT count(*) FROM user_rating' at line 1
Execution Time : 00:00:00:000
Transfer Time : 00:00:00:000
Total Time : 00:00:00:000
(1 row(s) returned)
Execution Time : 00:00:00:343
Transfer Time : 00:00:00:000
Total Time : 00:00:00:343
http://stackoverflow.com/questions/6081436/how-to- use-alias-as-field-in-mysql/6081523 # 6081523 –