I have a large SQL Server database with a table at about 45 million records. I am archiving this table, and need to remove al开发者_JAVA百科l entries greater than two years ago. I have the inserting i
I have the following MySQL for a delete button. DELETE FROM mytable WHERE id = $id I want to add a jquery modal to confirm to proceed. \"Are you sure to delete? Yes | No\"
I need to delete duplicate rows only from the table, like I have 3 duplicate rows in the table, my query will delete 2 rows from 3 duplicated rows.
I have to add a unique constraint to an existing table. This is fine except that the table has millions of rows already, and many of the rows violate the unique constraint I need to add.
I want to delete certain items from the database. I have the following query: SELECT * FROM sheets, entries
I have a table people (name, address, phone), my table have 2开发者_如何学C000+ rows. I want to delete 1000 rows. How\'s about the query?I assume you want to delete \"first 1000 rows\" given the unsor
This question already has answers here: Delete all Duplicate Rows except for One in MySQL? [duplicate]