Collections:
Drop an Existing Index in Oracle
How To Drop an Existing Index in Oracle?
✍: FYIcenter.com
If you don't need an existing index any more, you should delete it with the DROP INDEX statement. Here is an example SQL script:
CREATE TABLE student (id NUMBER(5) PRIMARY KEY, first_name VARCHAR(80) NOT NULL, last_name VARCHAR(80) NOT NULL, birth_date DATE NOT NULL, social_number VARCHAR(80) UNIQUE NOT NULL); Table created. CREATE INDEX student_birth_date ON student(birth_date); Index created. SELECT index_name, table_name, uniqueness FROM USER_INDEXES WHERE table_name = 'STUDENT'; INDEX_NAME TABLE_NAME UNIQUENES ----------------------- --------------------- --------- SYS_C004129 STUDENT UNIQUE SYS_C004130 STUDENT UNIQUE STUDENT_BIRTH_DATE STUDENT NONUNIQUE DROP INDEX STUDENT_BIRTH_DATE; Index dropped.
⇐ ALTER INDEX - Rename an Index in Oracle
2020-02-20, 1650🔥, 0💬
Popular Posts:
How To Present a Past Time in Hours, Minutes and Seconds in MySQL? If you want show an article was p...
How To End a Stored Procedure Properly in SQL Server Transact-SQL? Where the end of the "CREATE PROC...
What Is Program Global Area (PGA) in Oracle? A Program Global Area (PGA) is a memory buffer that is ...
How To Verify a User name with SQLCMD Tool in SQL Server? The quickest way to verify a user name in ...
What Happens If the UPDATE Subquery Returns Multiple Rows in MySQL? If a subquery is used in a UPDAT...