Important Points About SQL CREATE INDEX Statement
- The CREATE INDEX statement is used to create indexes in tables to retrieve data more quickly.
- Indexes are used to improve the efficiency of searches for data, presenting data in a specific order, and when joining tables.
- Increasing the number of indexes in a database can impact overall system performance, so indexes should be created on columns that will be frequently searched against.
- The CREATE UNIQUE INDEX statement creates a unique index on a table where duplicate values are not allowed.
- The DROP INDEX statement is used to delete an index from a table in SQL.
SQL CREATE INDEX Statement
SQL CREATE INDEX statement creates indexes in a table for fast and efficient data retrieval.