Merge remote-tracking branch 'refs/remotes/origin/main'

Practical/Assignment-A3/Queries-A3.md

@@ -1,3 +1,5 @@
+# Database Queries for Assignment-A3
+
 ## Creating database
 
 ```sql

Practical/Assignment-A4+A5/Queries-A4.md

@@ -1,3 +1,5 @@
+# Database Queries for Assignment-A4
+
 ## Creating tables
 
 ```sql

Practical/Assignment-A4+A5/Queries-A5.md

@@ -1,76 +0,0 @@
-## Creating tables & inserting data
-
-Student marks:
-```sql
-CREATE TABLE Stud_Marks(
-    Roll NUMBER(14),
-    name VARCHAR(255),
-    total_marks NUMBER(14),
-    PRIMARY KEY(Roll)
-);
-
-INSERT INTO Stud_Marks VALUES (1, 'Arora', 1350);
-INSERT INTO Stud_Marks VALUES (2, 'Shankar', 979);
-INSERT INTO Stud_Marks VALUES (3, 'Lara', 834);
-INSERT INTO Stud_Marks VALUES (4, 'Jambo', 667);
-INSERT INTO Stud_Marks VALUES (5, 'Tinde', 1400);
-
-```
-
-Result:
-```sql
-CREATE TABLE Result(
-    Roll NUMBER(14),
-    name VARCHAR(255),
-    Class VARCHAR(255),
-    FOREIGN KEY (Roll) REFERENCES Stud_Marks (Roll)
-);
-
-```
-
-## Procedure
-```sql
-CREATE OR REPLACE PROCEDURE proc_grade
-(rollno in number,
- p_roll_no out Stud_Marks.Roll%type,
- p_name out Stud_Marks.name%type,
- p_total out Stud_Marks.total_marks%type)
-AS
-BEGIN
-	SELECT Roll, name, total_marks into p_roll_no, p_name, p_total from Stud_Marks WHERE Roll = rollno;
-	IF p_total <= 1500 and p_total >= 990
-	THEN
-		INSERT INTO Result VALUES (p_roll_no, p_name, 'Distinction');
-	ELSE IF p_total <= 989 and p_total >= 900
-	THEN
-		INSERT INTO Result VALUES (p_roll_no, p_name, 'First Class');
-	ELSE IF p_total <= 899 and p_total >= 825
-	THEN
-		INSERT INTO Result VALUES (p_roll_no, p_name, 'Higher Second Class');
-	ELSE
-		INSERT INTO Result VALUES (p_roll_no, p_name, 'FAIL');
-	END IF;
-	END IF;
-	END IF;
-EXCEPTION
-	WHEN no_data_found THEN
-		dbms_output.put_line('Rollno ' || rollno || ' is not present!!');
-END;
-/
-
-```
-
-## Calling Procedure:
-```sql
-DECLARE
-	rollno number(14);
-	p_roll_no Stud_Marks.Roll%type;
-	p_name Stud_Marks.name%type;
-	p_total_marks Stud_Marks.total_marks%type;
-BEGIN
-	rollno := &rollno;
-	proc_grade(rollno, p_roll_no, p_name, p_total_marks);
-END;
-/
-
-```

Practical/Assignment-A6/Queries-A6.md

@@ -1,107 +1,78 @@
-## Creating tables
+# Database Queries for Assignment-A6
 
-`O_RollCall` table:
+## Creating tables & inserting data
+
+Student marks:
 ```sql
-CREATE TABLE O_RollCall(
+CREATE TABLE Stud_Marks(
-name VARCHAR(255),
+    Roll NUMBER(14),
-roll NUMBER(14),
+    name VARCHAR(255),
-class VARCHAR(255)
+    total_marks NUMBER(14),
+    PRIMARY KEY(Roll)
+
 );
 
+INSERT INTO Stud_Marks VALUES (1, 'Arora', 1350);
+INSERT INTO Stud_Marks VALUES (2, 'Shankar', 979);
+INSERT INTO Stud_Marks VALUES (3, 'Lara', 834);
+INSERT INTO Stud_Marks VALUES (4, 'Jambo', 667);
+INSERT INTO Stud_Marks VALUES (5, 'Tinde', 1400);
+
 ```
 
-`N_RollCall` table:
+Result:
 ```sql
-CREATE TABLE N_RollCall(
+CREATE TABLE Result(
-name VARCHAR(255),
+    Roll NUMBER(14),
-roll NUMBER(14),
+    name VARCHAR(255),
-class VARCHAR(255)
+    Class VARCHAR(255),
+    FOREIGN KEY (Roll) REFERENCES Stud_Marks (Roll)
 );
 
 ```
 
-## Inserting data
-
-`O_RollCall` table:
-```sql
-INSERT INTO O_RollCall VALUES ('Stewie', 1, 'Comp 1');
-INSERT INTO O_RollCall VALUES ('Edie', 2, 'Comp 2');
-INSERT INTO O_RollCall VALUES ('Stomp', 3, 'Comp 3');
-INSERT INTO O_RollCall VALUES ('Lara', 4, 'Comp 1');
-INSERT INTO O_RollCall VALUES ('Foxy', 5, 'Comp 2');
-
-```
-
-`N_RollCall` table:
-```sql
-INSERT INTO N_RollCall VALUES ('Stewie', 1, 'Comp 1');
-INSERT INTO N_RollCall VALUES ('Edie', 2, 'Comp 2');
-INSERT INTO N_RollCall VALUES ('Stomp', 3, 'Comp 3');
-INSERT INTO N_RollCall VALUES ('Lara', 4, 'Comp 1');
-INSERT INTO N_RollCall VALUES ('Foxy', 5, 'Comp 2');
-INSERT INTO N_RollCall VALUES ('Gundeti', 6, 'Comp 3');
-INSERT INTO N_RollCall VALUES ('Kalas', 7, 'Comp 2');
-
-```
-
 ## Procedure
-
-### Explicit cursor
 ```sql
-DECLARE
+CREATE OR REPLACE PROCEDURE proc_grade
-  p_name VARCHAR(255);
+(rollno in number,
-  p_rollno NUMBER(15);
+ p_roll_no out Stud_Marks.Roll%type,
-  p_class VARCHAR(255);
+ p_name out Stud_Marks.name%type,
-  CURSOR cc1 IS SELECT * FROM N_RollCall WHERE roll NOT IN (SELECT roll FROM O_RollCall);
+ p_total out Stud_Marks.total_marks%type)
+AS
 BEGIN
-  OPEN cc1;
+	SELECT Roll, name, total_marks into p_roll_no, p_name, p_total from Stud_Marks WHERE Roll = rollno;
-    LOOP
+	IF p_total <= 1500 and p_total >= 990
-      FETCH cc1 INTO p_name, p_rollno, p_class;
+	THEN
-      INSERT INTO O_RollCall VALUES (p_name, p_rollno, p_class);
+		INSERT INTO Result VALUES (p_roll_no, p_name, 'Distinction');
-      EXIT WHEN cc1%notfound;
+	ELSE IF p_total <= 989 and p_total >= 900
-      DBMS_OUTPUT.PUT_LINE(p_name || ' ' || p_rollno || ' ' || p_class);
+	THEN
-      END LOOP;
+		INSERT INTO Result VALUES (p_roll_no, p_name, 'First Class');
-  CLOSE cc1;
+	ELSE IF p_total <= 899 and p_total >= 825
-END;
+	THEN
-/
+		INSERT INTO Result VALUES (p_roll_no, p_name, 'Higher Second Class');
-
+	ELSE
-```
+		INSERT INTO Result VALUES (p_roll_no, p_name, 'FAIL');
-
-### Parameterized cursor
-```sql
-DECLARE
-  p_name VARCHAR(255);
-  p_rollno NUMBER(15);
-  p_class VARCHAR(255);
-  CURSOR pp1(roll1 NUMBER) IS SELECT * FROM N_RollCall WHERE roll > roll1;
-
-BEGIN
-  OPEN pp1(3);
-    LOOP
-      FETCH pp1 INTO p_name, p_rollno, p_class;
-      EXIT WHEN pp1%notfound;
-      DBMS_OUTPUT.PUT_LINE(p_name || ' ' || p_rollno || ' ' || p_class);
-    END LOOP;
-  CLOSE pp1;
-
-END;
-/
-
-```
-
-### Implicit Cursor
-```sql
-DECLARE
-  total_rows NUMBER(2);
-
-BEGIN
-  UPDATE N_RollCall SET roll = roll + 1;
-  IF sql%notfound THEN
-    dbms_output.put_line('no roll was updated');
-  ELSIF sql%found THEN
-    total_rows := sql%rowcount;
-    DBMS_OUTPUT.PUT_LINE( total_rows || ' roll calls were affected ');
 	END IF;
+	END IF;
+	END IF;
+EXCEPTION
+	WHEN no_data_found THEN
+		dbms_output.put_line('Rollno ' || rollno || ' is not present!!');
+END;
+/
+
+```
+
+## Calling Procedure:
+```sql
+DECLARE
+	rollno number(14);
+	p_roll_no Stud_Marks.Roll%type;
+	p_name Stud_Marks.name%type;
+	p_total_marks Stud_Marks.total_marks%type;
+BEGIN
+	rollno := &rollno;
+	proc_grade(rollno, p_roll_no, p_name, p_total_marks);
 END;
 /
 

Practical/Assignment-A7/Queries-A7.md

@@ -1,91 +1,110 @@
+# Database Queries for Assignment-A7
+
 ## Creating tables
 
-`Library` table:
+`O_RollCall` table:
 ```sql
-CREATE TABLE Library(
+CREATE TABLE O_RollCall(
-    id NUMBER(12),
+name VARCHAR(255),
-    title VARCHAR(255),
+roll NUMBER(14),
-    dateofissue DATE,
+class VARCHAR(255)
-    author VARCHAR(255)
 );
 
 ```
 
-`Library_Audit` table:
+`N_RollCall` table:
 ```sql
-CREATE TABLE Library_Audit(
+CREATE TABLE N_RollCall(
-    id NUMBER(12),
+name VARCHAR(255),
-    title VARCHAR(255),
+roll NUMBER(14),
-    dateofaction DATE,
+class VARCHAR(255)
-    author VARCHAR(255),
-    status VARCHAR(255)
 );
 
 ```
 
-## Inserting values
+## Inserting data
 
-`Library` table:
+`O_RollCall` table:
 ```sql
-INSERT INTO Library VALUES (1, 'Berserk', TO_DATE('2024-07-28','YYYY-MM-DD'), 'Prashant');
+INSERT INTO O_RollCall VALUES ('Stewie', 1, 'Comp 1');
-INSERT INTO Library VALUES (2, 'Dark', TO_DATE('2024-07-15','YYYY-MM-DD'), 'Rajendra');
+INSERT INTO O_RollCall VALUES ('Edie', 2, 'Comp 2');
-INSERT INTO Library VALUES (3, 'Hannibal', TO_DATE('2024-07-20','YYYY-MM-DD'), 'Manoj');
+INSERT INTO O_RollCall VALUES ('Stomp', 3, 'Comp 3');
-INSERT INTO Library VALUES (4, 'AOT', TO_DATE('2024-07-30','YYYY-MM-DD'), 'Rajesh');
+INSERT INTO O_RollCall VALUES ('Lara', 4, 'Comp 1');
-INSERT INTO Library VALUES (5, 'GOT', TO_DATE('2024-07-19','YYYY-MM-DD'), 'Anil');
+INSERT INTO O_RollCall VALUES ('Foxy', 5, 'Comp 2');
 
 ```
 
-## Trigger
+`N_RollCall` table:
-
 ```sql
-CREATE OR REPLACE TRIGGER library_action
+INSERT INTO N_RollCall VALUES ('Stewie', 1, 'Comp 1');
-AFTER INSERT OR UPDATE OR DELETE ON Library
+INSERT INTO N_RollCall VALUES ('Edie', 2, 'Comp 2');
-FOR EACH ROW
+INSERT INTO N_RollCall VALUES ('Stomp', 3, 'Comp 3');
+INSERT INTO N_RollCall VALUES ('Lara', 4, 'Comp 1');
+INSERT INTO N_RollCall VALUES ('Foxy', 5, 'Comp 2');
+INSERT INTO N_RollCall VALUES ('Gundeti', 6, 'Comp 3');
+INSERT INTO N_RollCall VALUES ('Kalas', 7, 'Comp 2');
+
+```
+
+## Procedure
+
+### Explicit cursor
+```sql
+DECLARE
+  p_name VARCHAR(255);
+  p_rollno NUMBER(15);
+  p_class VARCHAR(255);
+  CURSOR cc1 IS SELECT * FROM N_RollCall WHERE roll NOT IN (SELECT roll FROM O_RollCall);
 BEGIN
-	IF INSERTING THEN
+  OPEN cc1;
-    	INSERT INTO Library_Audit (id, title, dateofaction, author, status) VALUES (:NEW.id, :NEW.title, current_timestamp, :NEW.author, 'Insert');
+    LOOP
-	ELSIF UPDATING THEN
+      FETCH cc1 INTO p_name, p_rollno, p_class;
-        INSERT INTO Library_Audit (id, title, dateofaction, author, status) VALUES (:OLD.id, :OLD.title, current_timestamp, :OLD.author, 'Update');
+      INSERT INTO O_RollCall VALUES (p_name, p_rollno, p_class);
-	ELSIF DELETING THEN
+      EXIT WHEN cc1%notfound;
-        INSERT INTO Library_Audit (id, title, dateofaction, author, status) VALUES (:OLD.id, :OLD.title, current_timestamp, :OLD.author, 'Delete');
+      DBMS_OUTPUT.PUT_LINE(p_name || ' ' || p_rollno || ' ' || p_class);
-	END IF;
+      END LOOP;
+  CLOSE cc1;
 END;
 /
 
 ```
 
-## Testing trigger
+### Parameterized cursor
-
-### Insert operation
-
 ```sql
-INSERT INTO Library VALUES (15, 'CREW', TO_DATE('2024-07-22','YYYY-MM-DD'), 'Ramesh');
+DECLARE
-INSERT INTO Library VALUES (14, 'Ninteen Eighty Four', TO_DATE('2024-07-01','YYYY-MM-DD'), 'Omkar');
+  p_name VARCHAR(255);
+  p_rollno NUMBER(15);
+  p_class VARCHAR(255);
+  CURSOR pp1(roll1 NUMBER) IS SELECT * FROM N_RollCall WHERE roll > roll1;
 
-SELECT * FROM Library;
+BEGIN
-SELECT * FROM Library_Audit;
+  OPEN pp1(3);
+    LOOP
+      FETCH pp1 INTO p_name, p_rollno, p_class;
+      EXIT WHEN pp1%notfound;
+      DBMS_OUTPUT.PUT_LINE(p_name || ' ' || p_rollno || ' ' || p_class);
+    END LOOP;
+  CLOSE pp1;
 
-```
+END;
-### Update operation
+/
-
-```sql
-UPDATE Library SET id = 6, title = 'Sherlock', author = 'Deepak' where id = 3;
-UPDATE Library SET id = 7, title = 'MR. ROBOT', author = 'Varad' where id = 4;
-
-SELECT * FROM Library;
-SELECT * FROM Library_Audit;
 
 ```
 
-### Delete operation
+### Implicit Cursor
-
 ```sql
-DELETE FROM Library WHERE id = 1;
+DECLARE
-DELETE FROM Library WHERE id = 5;
+  total_rows NUMBER(2);
 
-SELECT * FROM Library;
+BEGIN
-SELECT * FROM Library_Audit;
+  UPDATE N_RollCall SET roll = roll + 1;
+  IF sql%notfound THEN
+    dbms_output.put_line('no roll was updated');
+  ELSIF sql%found THEN
+    total_rows := sql%rowcount;
+    DBMS_OUTPUT.PUT_LINE( total_rows || ' roll calls were affected ');
+  END IF;
+END;
+/
 
 ```
-
----

Practical/Assignment-A8/Queries-A8.md

@@ -0,0 +1,93 @@
+# Database Queries for Assignment-A8
+
+## Creating tables
+
+`Library` table:
+```sql
+CREATE TABLE Library(
+    id NUMBER(12),
+    title VARCHAR(255),
+    dateofissue DATE,
+    author VARCHAR(255)
+);
+
+```
+
+`Library_Audit` table:
+```sql
+CREATE TABLE Library_Audit(
+    id NUMBER(12),
+    title VARCHAR(255),
+    dateofaction DATE,
+    author VARCHAR(255),
+    status VARCHAR(255)
+);
+
+```
+
+## Inserting values
+
+`Library` table:
+```sql
+INSERT INTO Library VALUES (1, 'Berserk', TO_DATE('2024-07-28','YYYY-MM-DD'), 'Prashant');
+INSERT INTO Library VALUES (2, 'Dark', TO_DATE('2024-07-15','YYYY-MM-DD'), 'Rajendra');
+INSERT INTO Library VALUES (3, 'Hannibal', TO_DATE('2024-07-20','YYYY-MM-DD'), 'Manoj');
+INSERT INTO Library VALUES (4, 'AOT', TO_DATE('2024-07-30','YYYY-MM-DD'), 'Rajesh');
+INSERT INTO Library VALUES (5, 'GOT', TO_DATE('2024-07-19','YYYY-MM-DD'), 'Anil');
+
+```
+
+## Trigger
+
+```sql
+CREATE OR REPLACE TRIGGER library_action
+AFTER INSERT OR UPDATE OR DELETE ON Library
+FOR EACH ROW
+BEGIN
+	IF INSERTING THEN
+    	INSERT INTO Library_Audit (id, title, dateofaction, author, status) VALUES (:NEW.id, :NEW.title, current_timestamp, :NEW.author, 'Insert');
+	ELSIF UPDATING THEN
+        INSERT INTO Library_Audit (id, title, dateofaction, author, status) VALUES (:OLD.id, :OLD.title, current_timestamp, :OLD.author, 'Update');
+	ELSIF DELETING THEN
+        INSERT INTO Library_Audit (id, title, dateofaction, author, status) VALUES (:OLD.id, :OLD.title, current_timestamp, :OLD.author, 'Delete');
+	END IF;
+END;
+/
+
+```
+
+## Testing trigger
+
+### Insert operation
+
+```sql
+INSERT INTO Library VALUES (15, 'CREW', TO_DATE('2024-07-22','YYYY-MM-DD'), 'Ramesh');
+INSERT INTO Library VALUES (14, 'Ninteen Eighty Four', TO_DATE('2024-07-01','YYYY-MM-DD'), 'Omkar');
+
+SELECT * FROM Library;
+SELECT * FROM Library_Audit;
+
+```
+### Update operation
+
+```sql
+UPDATE Library SET id = 6, title = 'Sherlock', author = 'Deepak' where id = 3;
+UPDATE Library SET id = 7, title = 'MR. ROBOT', author = 'Varad' where id = 4;
+
+SELECT * FROM Library;
+SELECT * FROM Library_Audit;
+
+```
+
+### Delete operation
+
+```sql
+DELETE FROM Library WHERE id = 1;
+DELETE FROM Library WHERE id = 5;
+
+SELECT * FROM Library;
+SELECT * FROM Library_Audit;
+
+```
+
+---