DML Practice Problems
1) Create a Customer table using the below DDL :
CREATE TABLE CUSTOMERS(
ID INT NOT NULL,
NAME VARCHAR (20) NOT NULL,
AGE INT NOT NULL,
ADDRESS CHAR (25) ,
SALARY DECIMAL (18, 2),
CONSTRAINT pk_cust PRIMARY KEY (ID)
);
2) Insert the below data into the Customer table created above :
+----+----------+-----+-----------+----------+
| ID | NAME | AGE | ADDRESS | SALARY |
+----+----------+-----+-----------+----------+
| 1 | Ramesh | 32 | Ahmedabad | 2000.00 |
| 2 | Khilan | 25 | Delhi | 1500.00 |
| 3 | kaushik | 23 | Kota | 2000.00 |
| 4 | Chaitali | 25 | Mumbai | 6500.00 |
| 5 | Hardik | 27 | Bhopal | 8500.00 |
| 6 | Komal | 22 | MP | 4500.00 |
| 7 | Muffy | 24 | Indore | 10000.00 |
+----+----------+-----+-----------+----------+
3) Create Consumer as a back up of the Customer table
4) DELETE the customer whose ID is 6
5) DELETE customer, whose salary is greater than 9000
6) UPDATE the address to 'Pune' for a customer whose ID number is 3
7) Create the Tables and Insert data as per the below file :
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