I am trying to delete a few records but am getting the following error: Cannot delete or update a parent row: a foreign key constraint fails
I am trying to delete an item from a folder somewhere, and I need to pass in the path of the item to unlink(). For some reason it says I am not returning a string, which I am not sur开发者_C百科e how
How 开发者_开发知识库can I delete a specific row on a table only if its data is not used by another table anymore?
I am trying to delete from multiple tables. Here\'s what my tables look like A_has_B ---- B ---- C_has_B
I have a few tables in MySQL like so: A ---- A_has_B ---- B (many to many)| C ---- C_has_B------- (many to many)
I have a table structured like this: CREAT TABLE `member_logins` ( `id` bigint(10) unsigned not null auto_increment,
I want to delete rows from multiple tables. I know the select query, but I need an exact delete query for all the columns that are defined below:
When I try to select values from a local database it executes without any issue. But when I try to insert and delete it\'s executing the query but it\'s not affecting any rows.
I\'d need your help, I\'m starting with Android databases and I have a litte problem/question for update my tables (maybe is a stupid question but is hard for me ) :
Iwant to delete all records from table \"T\" if the records are also in table D, but I am getting the error message \"SPECIFY THE TABLE CONTAINING THE RECORDS YOU WANT TO DELETE\".
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