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SQL_9.text
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SQL> select * from tab;
TNAME TABTYPE CLUSTERID
------------------------------ ------- ----------
DEPT TABLE
EMP TABLE
BONUS TABLE
SALGRADE TABLE
ORDER1 TABLE
PRODUCT TABLE
COURSE TABLE
WORKER TABLE
STUDENT TABLE
9 rows selected.
SQL> select * from ORDER1;
OID ONAME PRICE
---------- -------------------- ----------
1001 DUM BIRYANI 300
1002 CHICKEN LOLLIPOP 120
1003 DOSA 50
1004 TEA 15
SQL> SELECT * FROM PRODUCT;
PID PNAME PRICE
---------- ---------- ----------
1 BOOK 50
2 PEN 30
3 BOTTLE 70
4 PENCIL
SQL> SELECT * FROM COURSE;
CID CNAME TNAME
---------- ---------- --------------------
1001 SQL GREESHMA
1002 JAVA RAVEESH
1003 PYTHON SANTOSH
1004 MERN KISHORE
SQL> SELECT * FROM WORKER;
WID WNAME AGE GENDER COUNTRY
---------- -------------------- ---------- ---------- --------------------
1 VANDU 30 F INDIA
2 MOUNI 31 F CANADA
3 VICKY 32 M USA
4 NIKKU 30 F INDIA
SQL> SELECT * FROM STUDENT;
no rows selected
SQL> INSERT INTO STUDENT
2 SELECT
3
SQL> DESC STUDENT;
Name Null? Type
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- -------- ------------------------------------------------------------------------------------------------------------------------------------------------------------
SID NOT NULL NUMBER(10)
SNAME NOT NULL VARCHAR2(10)
MARKS NUMBER(4,2)
CID NUMBER(10)
SQL> INSERT INTO STUDENT
2 VALUES(2001,'MOUNIKA',88,1002);
1 row created.
SQL> INSERT INTO STUDENT
2 VALUES(2002,'VANDANA',80,1003);
1 row created.
SQL> INSERT INTO STUDENT
2 VALUES(2003,'GNANESH',80,1004);
1 row created.
SQL> INSERT INTO STUDENT
2 VALUES(2004,'NIKHITHA',78,1001);
1 row created.
SQL> SELECT * FROM STUDENT;
SID SNAME MARKS CID
---------- ---------- ---------- ----------
2001 MOUNIKA 88 1002
2002 VANDANA 80 1003
2003 GNANESH 80 1004
2004 NIKHITHA 78 1001
SQL> SELECT * FROM ORDER1;
OID ONAME PRICE
---------- -------------------- ----------
1001 DUM BIRYANI 300
1002 CHICKEN LOLLIPOP 120
1003 DOSA 50
1004 TEA 15
SQL> ALTER TABLE ORDER1
2 ADD QUALITY NUMBER(10) NOT NULL;
ALTER TABLE ORDER1
*
ERROR at line 1:
ORA-01758: table must be empty to add mandatory (NOT NULL) column
SQL> ALTER TABLE ORDER1
2 ADD QUALITY NUMBER(10);
Table altered.
SQL> SELECT * FROM ORDER1;
OID ONAME PRICE QUALITY
---------- -------------------- ---------- ----------
1001 DUM BIRYANI 300
1002 CHICKEN LOLLIPOP 120
1003 DOSA 50
1004 TEA 15
SQL> ALTER TABLE ORDER1
2 ADD ID NUMBER(10) PRIMARY KEY;
ALTER TABLE ORDER1
*
ERROR at line 1:
ORA-01758: table must be empty to add mandatory (NOT NULL) column
SQL> ALTER TABLE ORDER1
2 ADD ID NUMBER(10) CHECK(ID>=2);
Table altered.
SQL> SELECT * FROM ORDER1;
OID ONAME PRICE QUALITY ID
---------- -------------------- ---------- ---------- ----------
1001 DUM BIRYANI 300
1002 CHICKEN LOLLIPOP 120
1003 DOSA 50
1004 TEA 15
SQL> DESC ORDER1;
Name Null? Type
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- -------- ------------------------------------------------------------------------------------------------------------------------------------------------------------
OID NUMBER(10)
ONAME VARCHAR2(20)
PRICE NUMBER(6,2)
QUALITY NUMBER(10)
ID NUMBER(10)
SQL> SELECT * FROM TAB;
TNAME TABTYPE CLUSTERID
------------------------------ ------- ----------
DEPT TABLE
EMP TABLE
BONUS TABLE
SALGRADE TABLE
ORDER1 TABLE
PRODUCT TABLE
COURSE TABLE
WORKER TABLE
STUDENT TABLE
9 rows selected.
SQL> CREATE TABLE PRODUCT(
2 2 PID NUMBER(10) PRIMARY KEY,
3 3 PNAME VARCHAR(10) NOT NULL,
4
SQL> CREATE TABLE BOOK1(
2 BID NUMBER(10) PRIMARY KEY,
3 BNAME VARCHAR(20) NOT NULL,
4 PRICE NUMBER(10) NOT NULL);
Table created.
SQL> ALTER TABLE BOOK1
2 ADD AUTHOR VARCHAR(20) DEFAULT('MOUNI') NOT NULL;
Table altered.
SQL> SELECT * FROM BOOK1;
no rows selected
SQL> DESC BOOK1;
Name Null? Type
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- -------- ------------------------------------------------------------------------------------------------------------------------------------------------------------
BID NOT NULL NUMBER(10)
BNAME NOT NULL VARCHAR2(20)
PRICE NOT NULL NUMBER(10)
AUTHOR NOT NULL VARCHAR2(20)
SQL> ALTER TABLE BOOK1
2 ADD AUTHOR VARCHAR(20) DEFAULT('MOUNI') NOT NULL;
ADD AUTHOR VARCHAR(20) DEFAULT('MOUNI') NOT NULL
*
ERROR at line 2:
ORA-01430: column being added already exists in table
SQL> ALTER TABLE ORDER1
2 ADD PNAME VARCHAR(20) DEFAULT('BAG');
Table altered.
SQL> SELECT * FROM ORDER1;
OID ONAME PRICE QUALITY ID PNAME
---------- -------------------- ---------- ---------- ---------- --------------------
1001 DUM BIRYANI 300 BAG
1002 CHICKEN LOLLIPOP 120 BAG
1003 DOSA 50 BAG
1004 TEA 15 BAG
SQL> SET PAGES 200 LINES 200;
SQL> DESC EMP;
Name Null? Type
----------------------------------------------------------------------------------------------------------------- -------- ----------------------------------------------------------------------------
EMPNO NOT NULL NUMBER(4)
ENAME VARCHAR2(10)
JOB VARCHAR2(9)
MGR NUMBER(4)
HIREDATE DATE
SAL NUMBER(7,2)
COMM NUMBER(7,2)
DEPTNO NUMBER(2)
SQL> DESC ORDER1;
Name Null? Type
----------------------------------------------------------------------------------------------------------------- -------- ----------------------------------------------------------------------------
OID NUMBER(10)
ONAME VARCHAR2(20)
PRICE NUMBER(6,2)
QUALITY NUMBER(10)
ID NUMBER(10)
PNAME VARCHAR2(20)
SQL> ALTER TABLE ORDER1
2 DROP COLUMN QUALITY;
Table altered.
SQL> SELECT * FROM ORDER1;
OID ONAME PRICE ID PNAME
---------- -------------------- ---------- ---------- --------------------
1001 DUM BIRYANI 300 BAG
1002 CHICKEN LOLLIPOP 120 BAG
1003 DOSA 50 BAG
1004 TEA 15 BAG
SQL> ALTER TABLE ORDER1
2 DROP COLUMN PNAME;
Table altered.
SQL> ALTER TABLE ORDER1
2 DROP COLUMN ID;
Table altered.
SQL> SELECT * FROM ORDER1;
OID ONAME PRICE
---------- -------------------- ----------
1001 DUM BIRYANI 300
1002 CHICKEN LOLLIPOP 120
1003 DOSA 50
1004 TEA 15
SQL> SELECT * FROM BOOK1;
no rows selected
SQL> DESC BOOK1;
Name Null? Type
----------------------------------------------------------------------------------------------------------------- -------- ----------------------------------------------------------------------------
BID NOT NULL NUMBER(10)
BNAME NOT NULL VARCHAR2(20)
PRICE NOT NULL NUMBER(10)
AUTHOR NOT NULL VARCHAR2(20)
SQL> ALTER TABLE BOOK1
2 DROP COLUMN AUTHOR;
Table altered.
SQL> DESC BOOK1;
Name Null? Type
----------------------------------------------------------------------------------------------------------------- -------- ----------------------------------------------------------------------------
BID NOT NULL NUMBER(10)
BNAME NOT NULL VARCHAR2(20)
PRICE NOT NULL NUMBER(10)
SQL> ALTER TABLE COURSE
2 DROP COLUMN CID;
DROP COLUMN CID
*
ERROR at line 2:
ORA-12992: cannot drop parent key column
SQL> ALTER TABLE STUDENT
2 DROP COLUMN CID;
Table altered.
SQL> ALTER TABLE COURSE
2 DROP COLUMN CID;
Table altered.
SQL> SELECT * FROM COURSE;
CNAME TNAME
---------- --------------------
SQL GREESHMA
JAVA RAVEESH
PYTHON SANTOSH
MERN KISHORE
SQL> SELECT * FROM STUDENT;
SID SNAME MARKS
---------- ---------- ----------
2001 MOUNIKA 88
2002 VANDANA 80
2003 GNANESH 80
2004 NIKHITHA 78
SQL> ALTER TABLE COURSE
2 RENAME COLUMN CNAME TO COURSE_NAME;
Table altered.
SQL> SELECT * FROM COURSE;
COURSE_NAM TNAME
---------- --------------------
SQL GREESHMA
JAVA RAVEESH
PYTHON SANTOSH
MERN KISHORE
SQL> ALTER TABLE COURSE
2 RENAME COLUMN TNAME TO TRAINER;
Table altered.
SQL> SELECT * FROM COURSE;
COURSE_NAM TRAINER
---------- --------------------
SQL GREESHMA
JAVA RAVEESH
PYTHON SANTOSH
MERN KISHORE
SQL>
SQL> SELECT * FROM EMP;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
---------- ---------- --------- ---------- --------- ---------- ---------- ----------
7369 SMITH CLERK 7902 17-DEC-80 800 20
7499 ALLEN SALESMAN 7698 20-FEB-81 1600 300 30
7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30
7566 JONES MANAGER 7839 02-APR-81 2975 20
7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30
7698 BLAKE MANAGER 7839 01-MAY-81 2850 30
7782 CLARK MANAGER 7839 09-JUN-81 2450 10
7788 SCOTT ANALYST 7566 19-APR-87 3000 20
7839 KING PRESIDENT 17-NOV-81 5000 10
7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30
7876 ADAMS CLERK 7788 23-MAY-87 1100 20
7900 JAMES CLERK 7698 03-DEC-81 950 30
7902 FORD ANALYST 7566 03-DEC-81 3000 20
7934 MILLER CLERK 7782 23-JAN-82 1300 10
14 rows selected.
SQL> SELECT * FROM DEPT;
DEPTNO DNAME LOC
---------- -------------- -------------
10 ACCOUNTING NEW YORK
20 RESEARCH DALLAS
30 SALES CHICAGO
40 OPERATIONS BOSTON
SQL> ALTER TABLE DEPT
2 RENAME COLUMN DEPTNO TO DID;
Table altered.
SQL> SELECT * FROM DEPT;
DID DNAME LOC
---------- -------------- -------------
10 ACCOUNTING NEW YORK
20 RESEARCH DALLAS
30 SALES CHICAGO
40 OPERATIONS BOSTON
SQL> ALTER TABLE DEPT
2 RENAME COLUMN DID TO DEPTNO;
Table altered.
SQL> SELECT * FROM DEPT;
DEPTNO DNAME LOC
---------- -------------- -------------
10 ACCOUNTING NEW YORK
20 RESEARCH DALLAS
30 SALES CHICAGO
40 OPERATIONS BOSTON
SQL>
SQL> SELECT * FROM ORDER1;
OID ONAME PRICE
---------- -------------------- ----------
1001 DUM BIRYANI 300
1002 CHICKEN LOLLIPOP 120
1003 DOSA 50
1004 TEA 15
SQL> DESC ORDER1;
Name Null? Type
----------------------------------------------------------------------------------------------------------------- -------- ----------------------------------------------------------------------------
OID NUMBER(10)
ONAME VARCHAR2(20)
PRICE NUMBER(6,2)
SQL> ALTER TABLE ORDER1
2 MODIFY OID VARCHAR(10);
MODIFY OID VARCHAR(10)
*
ERROR at line 2:
ORA-01439: column to be modified must be empty to change datatype
SQL> ALTER TABLE ORDER1
2 MODIFY OID NUMBER(15);
Table altered.
SQL> ALTER TABLE ORDER1
2 MODIFY OID NUMBER(10);
MODIFY OID NUMBER(10)
*
ERROR at line 2:
ORA-01440: column to be modified must be empty to decrease precision or scale
SQL> DESC ORDER1;
Name Null? Type
----------------------------------------------------------------------------------------------------------------- -------- ----------------------------------------------------------------------------
OID NUMBER(15)
ONAME VARCHAR2(20)
PRICE NUMBER(6,2)
SQL> ALTER TABLE ORDER1
2 MODIFY OID NUMBER(20);
Table altered.
SQL> DESC ORDER1;
Name Null? Type
----------------------------------------------------------------------------------------------------------------- -------- ----------------------------------------------------------------------------
OID NUMBER(20)
ONAME VARCHAR2(20)
PRICE NUMBER(6,2)
SQL> SELECT * FROM TAB;
TNAME TABTYPE CLUSTERID
------------------------------ ------- ----------
DEPT TABLE
EMP TABLE
BONUS TABLE
SALGRADE TABLE
ORDER1 TABLE
PRODUCT TABLE
COURSE TABLE
WORKER TABLE
STUDENT TABLE
BOOK1 TABLE
10 rows selected.
SQL> SELECT * FROM BOOK1;
no rows selected
SQL> DESC BOOK1;
Name Null? Type
----------------------------------------------------------------------------------------------------------------- -------- ----------------------------------------------------------------------------
BID NOT NULL NUMBER(10)
BNAME NOT NULL VARCHAR2(20)
PRICE NOT NULL NUMBER(10)
SQL> ALTER TABLE BOOK1
2 MODIFY BID VARCHAR(10);
Table altered.
SQL> ALTER TABLE ORDER1
2 MODIFY ONAME VARCHAR(10);
MODIFY ONAME VARCHAR(10)
*
ERROR at line 2:
ORA-01441: cannot decrease column length because some value is too big
SQL> ALTER TABLE ORDER1
2 MODIFY ONAME VARCHAR(30);
Table altered.
SQL> ALTER TABLE BOOK1
2 MODIFY PRICE NUMBER(7,3) CHECK(PRICE>=100);
Table altered.
SQL>
SQL> DESC BOOK1;
Name Null? Type
----------------------------------------------------------------------------------------------------------------- -------- ----------------------------------------------------------------------------
BID NOT NULL VARCHAR2(10)
BNAME NOT NULL VARCHAR2(20)
PRICE NOT NULL NUMBER(7,3)
SQL> ALTER TABLE BOOK1
2 MODIFY BID NUMBER(20);
Table altered.
SQL> DESC BOOK1;
Name Null? Type
----------------------------------------------------------------------------------------------------------------- -------- ----------------------------------------------------------------------------
BID NOT NULL NUMBER(20)
BNAME NOT NULL VARCHAR2(20)
PRICE NOT NULL NUMBER(7,3)
SQL> SPOOL OFF;