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Index is dependent on column

Reports cases when you try to drop columns from indexed tables. This inspection is available in Microsoft SQL Server and Sybase ASE.

Example (Microsoft SQL Server):

CREATE TABLE test_index ( col INT NOT NULL, col2 INT NOT NULL, col3 INT NOT NULL UNIQUE, col4 VARCHAR(200) ); CREATE UNIQUE INDEX aaaa ON test_index (col, col2); ALTER TABLE test_index DROP COLUMN col;

You cannot delete the col column because it is in the indexed table. To delete the column, you need to delete the aaaa index first (for example, DROP INDEX aaaa).

Inspection Details

Available in:

AppCode 2023.3, CLion 2023.3, DataGrip 2023.3, DataSpell 2023.3, GoLand 2023.3, IntelliJ IDEA 2023.3, JetBrains Rider 2023.1, PhpStorm 2023.3, PyCharm 2023.3, Qodana for .NET 2023.1, Qodana for JVM 2023.3, Qodana for PHP 2023.3, Qodana for Ruby 2023.3, RubyMine 2023.3


Database Tools and SQL, 233.SNAPSHOT

Last modified: 13 July 2023