create table foreign key oracle

how to create table in oracle sql syntax example and foreign key

CREATE TABLE hr.admin_emp (
         empno      NUMBER(5) PRIMARY KEY,
         ename      VARCHAR2(15) NOT NULL,
         ssn        NUMBER(9) ENCRYPT,
         job        VARCHAR2(10),
         mgr        NUMBER(5),
         hiredate   DATE DEFAULT (sysdate),
         photo      BLOB,
         sal        NUMBER(7,2),
         hrly_rate  NUMBER(7,2) GENERATED ALWAYS AS (sal/2080),
         comm       NUMBER(7,2),
         deptno     NUMBER(3) NOT NULL
                     CONSTRAINT admin_dept_fkey REFERENCES hr.departments
                     (department_id))

Posted by: Guest on January-18-2021

Source

SELECT c.OWNER, a.TABLE_NAME, a.COLUMN_NAME, a.CONSTRAINT_NAME, c.R_OWNER AS REF_OWNER, cpk.TABLE_NAME AS REF_TABLE, cpk.CONSTRAINT_NAME AS REF_PK FROM ALL_CONS_COLUMNS a JOIN ALL_CONSTRAINTS c ON a.OWNER = c.OWNER AND a.CONSTRAINT_NAME = c.CONSTRAINT_NAME JOIN ALL_CONSTRAINTS cpk ON c.R_OWNER = cpk.OWNER AND c.R_CONSTRAINT_NAME = cpk.CONSTRAINT_NAME WHERE c.CONSTRAINT_TYPE = 'R' AND c.TABLE_NAME= 'table_name';

SELECT cons.OWNER AS CHILD_OWNER, cons.TABLE_NAME AS CHILD_TABLE, cons.CONSTRAINT_NAME AS CONSTAINT_NAME, cons.CONSTRAINT_TYPE AS CONSTRAINT_TYPE, col.OWNER AS PARENT_OWNER, col.TABLE_NAME AS PARENT_TABLE, col.COLUMN_NAME AS COLUMN_NAME FROM DBA_CONS_COLUMNS col, DBA_CONSTRAINTS cons WHERE cons.R_OWNER = col.OWNER AND cons.R_CONSTRAINT_NAME = col.CONSTRAINT_NAME AND cons.TABLE_NAME = 'table_name';

Code answers related to "create table foreign key oracle"

Browse Popular Code Answers by Language

Answers for "create table foreign key oracle"

Code answers related to "create table foreign key oracle"

Code answers related to "SQL"

Browse Popular Code Answers by Language

Popular Programming Languages

Advertisements

Company

Compilers

Help

Connect with us