![]() ( ColumnName OptFieldLen | '(' Expression ')' ) Order ( LockClause AlgorithmClause ? | AlgorithmClause LockClause? )? IndexPartSpecification ( ',' IndexPartSpecification )* DROP INDEX statement to remove an existing FULLTEXT index.'CREATE' IndexKeyTypeOpt 'INDEX' IfNotExists Identifier IndexTypeOpt 'ON' TableName '(' IndexPartSpecificationList ')' IndexOptionList IndexLockAndAlgorithmOpt ![]() Use CREATE INDEX statement to create an index for one or more columns of an existing table.ADD FULLTEXT statement to create a FULLTEXT index for an existing table. Use FULLTEXT KEY to define a full-text index that includes one or more columns in the CREATE TABLE statement.ALTER TABLE table_nameĭROP INDEX index_name Code language: SQL (Structured Query Language) ( sql )įor example, the following statement removes the idx_body index from the posts table: ALTER TABLE postsĭROP INDEX idx_body Code language: SQL (Structured Query Language) ( sql ) Summary To remove a FULLTEXT index, you use the ALTER TABLE DROP INDEX statement. Please note that for a table with a substantial number of rows, it is more efficient to load the data into a table that doesn’t have a FULLTEXT index initially.Īfterward, create the FULLTEXT index, and then proceed to load a large amount of data into a table that already has an existing FULLTEXT index Drop a FULLTEXT index ON posts( body) Code language: SQL (Structured Query Language) ( sql ) Second, create a FULLTEXT index on the posts table: CREATE FULLTEXT INDEX idx_body ![]() ) Code language: SQL (Structured Query Language) ( sql ) You can also use the CREATE INDEX statement to create a FULLTEXT index for existing tables using the following syntax: CREATE FULLTEXT INDEX index_name Second, create a FULLTEXT index on the posts table that includes the body column using the ALTER TABLE statement: ALTER TABLE postsĪDD FULLTEXT( body) Code language: SQL (Structured Query Language) ( sql ) Create FULLTEXT index using CREATE INDEX statement Second, use the ADD FULLTEXT clause to define the FULLTEXT index for one or more columns of the table.įirst, create a posts table: CREATE TABLE posts (.First, specify the name of the table that you want to create the index after the ALTER TABLE keywords.The following syntax defines a FULLTEXT index using the ALTER TABLE statement: ALTER TABLE table_nameĪDD FULLTEXT(column1, column1,…) Code language: SQL (Structured Query Language) ( sql ) Create FULLTEXT index using ALTER TABLE statement ![]() In the posts table, we define a FULLTEXT index that includes the body column. To create the FULLTEXT index, you place a list of comma-separated column names in parentheses after the FULLTEXT keyword.įor example, the following statement creates a new table named posts: CREATE TABLE posts ( Typically, you define the FULLTEXT index for a column when you create a new table using the CREATE TABLE statement as follows: CREATE TABLE table_name( Create FULLTEXT index using CREATE TABLE statement MySQL allows you to define the FULLTEXT index by using the CREATE TABLE statement when you create the table or ALTER TABLE or CREATE INDEX statement for the existing tables. Notice that MySQL only supported the full-text index for InnoDB tables since version 5.6. MySQL version 5.6 or later allows you to define a full-text index for a column whose data type is CHAR, VARCHAR or TEXT in MyISAM and InnoDB table types. MySQL supports indexing and re-indexing data automatically for full-text search-enabled columns. In MySQL, the full-text index is a kind of index that has a name FULLTEXT. Summary : in this tutorial, you will learn how to create a FULLTEXT index for performing various full-text searches in MySQL.īefore performing a full-text search in a column of a table, you must index its data. MySQL will recreate the full-text index whenever the data of the column changes.
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