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Update DBMS/SQL/Week5/writeup.md

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Aadit Agrawal 2025-02-04 15:18:32 +05:30
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@ -320,4 +320,81 @@ SQL> alter table text modify (booktitle varchar(20),publisher varchar(20),author
Table altered. Table altered.
``` ```
### ENTRY VALIDATION
```sql
SQL> select * from STUDENT;
REGNO NAME MAJOR BDATE
---------- -------------------- -------------------- ---------
123 Ashwin CCE 17-OCT-03
456 Aadit CCE 03-FEB-05
789 Shrikanth Environment 01-JAN-23
101 Aarav Environment 23-SEP-04
567 Amogh CSE 03-MAR-04
890 Saarthak CSE 03-JUL-04
6 rows selected.
SQL> select * from COURSE;
COURSE# CNAME DEPT
---------- ------------------------------ ------------------------------
1101 DBMS ICT
1102 DAA ICT
2201 COA CS
2202 DSD CS
3301 MATH EVS
3302 POETRY EVS
3303 Random EVS
7 rows selected.
SQL> select * from TEXT;
BOOK_ISBN BOOKTITLE PUBLISHER AUTHOR
---------- -------------------- -------------------- --------------------
1234 DBMS vol 1 Pearson SS
4123 DBMS vol 2 Pearson SS
5678 DAA vol 2 Pearson Ramanujan
9012 COA vol 666 Cengage Satan
3456 DSD vol 99 Penguin Panda
7890 Math vol 66 U-Like R S Aggrwal
1123 Poetry vol 0 OML Yahya Bootwaala
8901 Random vol 66 Classmate R D Sharma
8 rows selected.
SQL> select * from BOOK_ADOPTION;
COURSE# SEM BOOK_ISBN
---------- ---------- ----------
1101 1 1234
1102 2 4123
1102 2 5678
2201 3 9012
2202 4 3456
3301 5 7890
3302 6 1123
3303 7 8901
8 rows selected.
SQL> select * from ENROLL;
REGNO COURSE# SEM BOOK_ISBN
-------------------- ---------- ---------- ----------
123 1101 1 1234
123 1102 2 5678
456 1101 3 4123
456 2201 4 9012
789 3301 5 7890
789 3302 6 1123
101 3302 7 7890
567 2201 8 9012
890 2202 1 3456
9 rows selected.
```