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How do I change the table structure in SQL?

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  1. In which mode we can change the structure of a table?
  2. How do I find the structure of a table in SQL?
The SQL ALTER TABLE command is used to change the structure of an existing table. It helps to add or delete columns, create or destroy indexes, change the type of existing columns, or rename columns or the table itself. 26 февр. 2020 г.


In which mode we can change the structure of a table?

Answer: The SQL ALTER TABLE command is used to change the structure of an existing table.

How do I find the structure of a table in SQL?

13 Answers1sqlite3: . schema table_name.2Postgres (psql): \d table_name.3SQL Server: sp_help table_name (or sp_columns table_name for only columns)4Oracle DB2: desc table_name or describe table_name.5MySQL: describe table_name (or show columns from table_name for only columns)Describe table structure - sql - Stack Overflow

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