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Oracle » DDL » Design »

Creating constraints

     





/* primary key constraint */

ALTER TABLE EMPLOYEE (
CONSTRAINT EMP_PK
PRIMARY KEY (EMP_ID)
);

ALTER TABLE REPORT_FORMAT
ADD CONSTRAINT PK_REPORT_FORMAT PRIMARY KEY(REPORT_ID)
USING INDEX TABLESPACE PROD_IDX_01;


/* foreign key constraint */

ALTER TABLE EMPLOYEE ADD (
CONSTRAINT EMP_LOC_ASSIGN_FK
FOREIGN KEY (EMP_ID,
LOC_CD)
REFERENCES LOC_REGISTRY (
EMP_ID,
LOC_CD)
);









Oracle : Related Topics

Oracle : DDL : Creating a table
Oracle : DDL : Creating indexes
Oracle : DDL : Creating and using a sequence
Oracle : DDL : Synonyms and Database Links
Oracle : DDL : Changing a column's type or name
Oracle : DDL : Partitioned Tables
Oracle : DDL : Alter a column
Oracle : DDL : Creating an index with the nosort option
Oracle : DDL : Oracle data types

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