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` != \'\';
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` != \'\';
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