ALTER TABLE

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The ALTER TABLE command modify an existing table.

ALTER TABLE table_name ( ADD <column_def> [,...n] | DROP <column_def> [,...n] )

table_name		The name of the table.
`ADD`		`Add one or more columns to the table.`
`DROP`		`Currently not implemented. If you need it then contact the support.`
`<column_def>`		A column definition like it used in CREATE TABLE.

see also::
SQL Syntax