MySQL ALTER TABLE
Modifying and Updating Tables in MySQL
SQL queries to change the column type
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SQL Alter Table - How to Add a Column, Rename it, or Drop it - Explained with Syntax Examples
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Modifying and Updating Tables in MySQL
alter table add column | modify column syntax in sql - sql - sql tutorial - learn sql - By Microsoft Awarded MVP - Learn in 30sec | wikitechy
Sybase Change Column Type of Sybase Database Table Columns via the Alter Table Command
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ALTER TABLE Syntax – iByteCode Technologies
SQL ALTER TABLE statement
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MySQL ALTER TABLE
