In this tutorial, you will learn how to use the Oracle DROP INDEX statement to remove an index from a table.
DROP INDEX index-Name Examples DROP INDEX OrigIndex DROP INDEX DestIndex Statement dependency system If there is an open cursor on the table from which the index is dropped, the DROP INDEX statement generates an error and does not drop the index. Otherwise, statements that depend on the index...
drop_index_statement ::= DROP INDEX [IF EXISTS]index_nameONtable_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 with the same name...
The DROP INDEX statement is used to delete an index in a table. DROP INDEX Syntax for MS Access: DROP INDEX index_name ON table_name DROP INDEX Syntax for MS SQL Server: DROP INDEX table_name.index_name DROP INDEX Syntax for DB2/Oracle: ...
Drop Index in PostgreSQL 9.3.13 DROP INDEX -- remove an index Syntax: DROP INDEX [ CONCURRENTLY ] [ IF EXISTS ] name [, ...] [ CASCADE | RESTRICT ] Drop Index in Oracle 11g In Oracle, DROP INDEX statement is used to remove an index or domain index from the database. ...
Drop Index 取消索引 You can delete an existing index in a table with the DROP INDEX statement. 你可以将现有的索引通过DROP INDEX语句进行取消操作。 Syntax for Microsoft SQLJet (and Microsoft Access): 在Microsoft SQLJet (和 Microsoft Access)中的语法是这样的: ...
Introduction to Oracle DROP TABLE statement To drop a table and its data from the Oracle Database, you use the DROP TABLE statement: DROP TABLE table_name [CASCADE CONSTRAINTS | PURGE];Code language: SQL (Structured Query Language) (sql) In this syntax: First, specify the name of the ta...
index or index partition as was done prior to Oracle Database 12.1 releases; the resulting index (partition) does not contain any stale entries. ALTER INDEX INDEXNAME REBUILD; ALTER INDEX COALESCE [PARTITION] CLEANUP: This SQL statement cleans up any orphaned entries in index blocks. ALTER INDEX...
You also can’t drop indexes with the DDL statement: 1 2 3 4 5 6 SQL> drop index "SYS_AI_600vgjmtqsgv3"; drop index "SYS_AI_600vgjmtqsgv3" * ERROR at line 1: ORA-65532: cannot alter or drop automatically created indexes Although as discussed in my last post, you can now drop...
[select_statement] 36 37 or 38 39 CREATE [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name LIKE old_table_name; 40 41 create_definition: 42 col_name type [NOT NULL | NULL] [DEFAULT default_value] [AUTO_INCREMENT] 43 [PRIMARY KEY] [reference_definition] 44 or PRIMARY KEY (index_col_name,...