In Object Explorer, expand the table that contains the primary key and then expand Keys. Right-click the key and select Delete. In Object Explorer, right-click the table with the primary key, and ...
A database consists of one or more tables. A table is identified by its name. A table is made up of columns and rows. Columns contain the column name and data type. Rows contain the records or data ...
Primary keys on sub tables changed every time you edit an item. SQL queries for updating data in OpenCart should be improved. When you UPDATE any data in OpenCart like Product, Category etc... It ...
I'm working on a web app, and it part of it, there is a very simple database-driven file/document manager. As a file manager, there is the possibility of sub-folders. So in the DB, I have the ...
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