mysql text字段判断是否为空 - zqifa

mysql text字段判断是否为空

mysql text字段判断是否为空

mysql text字段为空
select * from `tableName` where `textField` is null or `textField` = \'\';

mysql text字段不为空
select * from `tableName` where `textField` is not null AND `textField` != \'\';