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प्रश्न
Write a SQL statement to create a table for employees having any five fields and create a table constraint for the employee table.
उत्तर
Table: emp
CREATE TABLE emp
(
empno integer NOTNULL,
empfname char(20),
emplname char(20),
Designation char(20),
Basicpay integer,
PRIMARY KEY (empfname,emplname) → Table constraint
);
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| P1003 | Prasad | Operator | 12000 | 6500 |
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| S1001 | Hariharan | Supervisor | 29000 | 12000 |
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| S1001 | Hariharan | Supervisor | 29000 | 12000 |
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| S1001 | Hariharan | Supervisor | 29000 | 12000 |
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| P1003 | Prasad | Operator | 12000 | 6500 |
| C1004 | Manjima | Clerk | 8000 | 4500 |
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