SQL> select CONSTRAINT_NAME,INDEX_NAME,CONSTRAINT_TYPE,table_name from user_constraints where CONSTRAINT_NAME='PK_DEPT'; How to check the primary key in the table SQL> select CONSTRAINT_NAME C_NAME,INDEX_NAME,CONSTRAINT_TYPE from user_constraints where TABLE_NAME='EMP' and CONSTRAINT_TYPE='P...
on the other hand, why I alter system generated constraint name, but the constraint still works...however, the oracle book said we cannot use alter table ...rename constraint to rename system generated constraint.SOLUTION johnsone🇺🇸 2009/6/09 membership Create a free account to see thi...
In this post, I am sharing one option to Disable / Enable the Foreign Key Constraint in PostgreSQL. During data migration and testing purpose, Database Developer requires to disable Foreign key constraint of a Table. Once you disable constraint, then later you might need t...
create index enable_for_is_null_i on tab ( indexed_column, 1 );Another benefit of bitmaps is it's easy to compress all those ones and zeros. So a bitmap index is typically smaller than the same B-tree index.For example, using a table of Olympic medal winners. Creating indexes on ed...
ALTER TABLE t1 RENAME CONSTRAINT pk TO pk_constraint; Add a partition to a column A table partition is used to partition a column’s data if it could contain too much data to store in one partition. As an example, create a range partitioned table with a partition for the columnc1: ...
Add Time in SQL HH:MM:SS to another HH:MM:SS Adding a column to a large (100 million rows) table with default constraint adding a extra column in a pivot table created uisng T-SQL Pivot Table query Adding a partition scheme to an existing table. Adding a Value to a 'date' Colu...
Hello Y'all, I received "ORA-02290: check constraint (PRODUCTION.PROJ_PH_PHASE_NUMBER_CK) violated" after running the following merge statement: {code } merge into project_phase target using (select distinct project_id, phase_cd from staging_iris ...
Using Oracle 11.2.3 Standard Edition, Windows 64. example of Metadata of Table: CREATE TABLE "X"."GEOPOLI_Test" ( "ID" NUMBER(*,0) NOT NULL ENABLE, "IS_SYNONYM" CHAR(1), CONSTRAINT "PK_GEOPOLITest" PRIMARY KEY ("ID") USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 ...
In Oracle, a unique constraint can not contain more than 32 columns. Unique constraints can be defined in either a CREATE TABLE statement or an ALTER TABLE statement. These are the ways to create the constraint : CREATE TABLE table_name ...
The volumes that are defined in this procedure must not include disk-label private areas, for example, cylinder 0. The VxVM software manages this constraint automatically. How to Configure a Device Group on the Primary Cluster Before You Begin ...