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