In conclusion, the DROP INDEX statement removes an index from a database table in Oracle. The syntax for this statement is: DROP INDEX index_name; To drop an index in a different schema, you can use the following syntax: DROP INDEX schema_name.index_name; You can use the IF EXISTS cla...
DROP INDEX [schema_name.]index_name;Code language: JavaScript (javascript) In this syntax: First, specify an optional schema name to which the index belongs. If you omit the schema name, Oracle assumes that the index is in your own schema. Second, specify the name of the index that you...
Name CREATE/ALTER/DROP INDEX Synopsis CREATE Syntax: CREATE [OR REPLACE] [UNIQUE | BITMAP] INDEX [schema.]indexname ON { CLUSTER [schema.]cluster Index_Attributes_Clause | [schema.] … - Selection from Oracle in a Nutshell [Book]
Syntax Copy drop_index_statement ::= DROP INDEX [IF EXISTS] index_name ON table_name Semantics If an index with the given name does not exist, then the statement fails, and an error is reported. If the optional IF EXISTS clause is used in the DROP INDEX statement, and if an index wi...
Syntax In this section of the article, we will discuss how we can create an index in the Oracle database. Let us take a look into the syntax of how to create an INDEX in Oracle first. CREATE INDEX index_name ON table_name(column1,column2,...,columnN); ...
Syntax drop_index::= Description of the illustration drop_index.eps Semantics schema Specify the schema containing the index. If you omitschema, then Oracle Database assumes the index is in your own schema. index Specify the name of the index to be dropped. When the index is dropped, all ...
The DROP INDEX StatementThe DROP INDEX statement is used to delete an index in a table.DROP INDEX Syntax for MS Access:DROP INDEX index_name ON table_nameDROP INDEX Syntax for MS SQL Server:DROP INDEX table_name.index_nameDROP INDEX Syntax for DB2/Oracle:DROP INDEX index_name...
In those cases, that index should be removed to free up storage. To drop an index in SQL, we specify that we want to change the table structure via the ALTER TABLE command, followed by the DROP INDEX command. The SQL syntax to drop an index from a table is, ...
Syntax:DROPINDEX[INDEX_NAME];Example: SQL>DROPINDEXRAMAN_DHILLON; NOTE: 1. Even though sql indexes are created to access the rows in the table quickly, they slow down DML operations like INSERT, UPDATE, DELETE on the table, because the indexes and tables both are updated along when a DML...
Syntax for MS SQL Server: MS SQL Server的语法是这样: DROP INDEX table_name.index_name Syntax for IBM DB2 and Oracle: IBM DB2和Oracle的语法为: DROP INDEX index_name Syntax for MySQL: MySql则是这样: ALTER TABLE table_name DROP INDEX index_name ...