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Home Database SQL What is the difference between syntax for adding columns in different database systems

What is the difference between syntax for adding columns in different database systems

Apr 09, 2025 pm 02:15 PM
mysql oracle the difference

不同數(shù)據(jù)庫系統(tǒng)添加列的語法為:MySQL:ALTER TABLE table_name ADD column_name data_type;PostgreSQL:ALTER TABLE table_name ADD COLUMN column_name data_type;Oracle:ALTER TABLE table_name ADD (column_name data_type);SQL Server:ALTER TABLE table_name ADD column_name data_

What is the difference between syntax for adding columns in different database systems

不同數(shù)據(jù)庫系統(tǒng)添加列的語法

MySQL

ALTER TABLE table_name ADD column_name data_type;

PostgreSQL

ALTER TABLE table_name ADD COLUMN column_name data_type;

Oracle

ALTER TABLE table_name ADD (column_name data_type);

SQL Server

ALTER TABLE table_name ADD column_name data_type;

SQLite

ALTER TABLE table_name ADD COLUMN column_name data_type;

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