as shown in the figure: the fields
that reply_article is " 69 " and reply_type is " 0 " and reply_aims_user is null are required.then! Here"s the point. Use the reply_id in the previous query field as the primary key to associate the field reply_parent in the table
.from your sample data, if reply_type is 0 and reply_parent is null, I'm afraid there will be no result if you query according to the conditions in your column.
where is the brain burning? Just connect!
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as shown in the figure, this association query is different in that it is associated with the same table indicates that table_test requirement: first query the result set of the field whose reply_type is 0, and then use the reply_id of the resul...
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