IT Nursery
I have SQL Server database and I just realized that I can change the type of one of the columns from int to bool. How can I do that...
Currently I am having the following MySQL table: Employees (empID, empName, department); I want to change the table to the following: Employees (empID, department, empName); How can this be...
I want to remove constraints from my table. My query is: ALTER TABLE `tbl_magazine_issue` DROP CONSTRAINT `FK_tbl_magazine_issue_mst_users` But I got an error: #1064 – You have an error in...
I would like to write a single SQL command to drop multiple columns from a single table in one ALTER TABLE statement. From MSDN’s ALTER TABLE documentation… DROP {...
MySQL 5.0.45 What is the syntax to alter a table to allow a column to be null, alternately what’s wrong with this: ALTER mytable MODIFY mycolumn varchar(255) null; I...