4D v13.4

CREATE INDEX

Home

4D SQL Reference
- SQL Commands
- - SQL Commands
  - SELECT
  - INSERT
  - UPDATE
  - DELETE
  - CREATE DATABASE
  - USE DATABASE
  - ALTER DATABASE
  - CREATE TABLE
  - ALTER TABLE
  - DROP TABLE
  - CREATE INDEX
  - DROP INDEX
  - LOCK TABLE
  - UNLOCK TABLE
  - EXECUTE IMMEDIATE
  - CREATE SCHEMA
  - ALTER SCHEMA
  - DROP SCHEMA
  - GRANT
  - REVOKE
  - REPLICATE
  - SYNCHRONIZE

4D v13.4

4D SQL Reference

SQL Commands

CREATE INDEX



	Command CREATE INDCREATE [UNIQUE] INDEX sql_name ON sql_name (column_reference, ... , column_reference)

Description

The CREATE INDEX command is used to create an index (sql_name) on one or more columns of an existing table (sql_name) designated by one or more column_reference type arguments. Indexes are transparent to users and serve to speed up queries.

You can also pass the optional UNIQUE keyword to create an index that does not allow duplicate values.

Example

Here is a simple example for creating an index:

CREATE INDEX ID_INDEX ON ACTOR_FANS (ID)

PROPERTIES

Product: 4D
Theme: SQL Commands

INDEX

Alphabetical list of commands