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How to Modify Tables and Add Columns in SQL | eHow
瀏覽：1473
日期：2025-09-30
Type the command "ALTER TABLE table_name ADD column varchar(20);" to add a column to the table. Replace "table_name" with the name of the table that you want to modify. Replace "column" with the name of the column that you want to add. Replace "varchar .....看更多
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