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INSERT INTO command:
Example:Insert the employee numbers, an increment amount of Rs.500/- and the increment date-today (which is being entered through function SYSDATE) of all the managers into a table INCR (increment due table) from the employee file.
INSERT INTO INCR SELECT EMPNO, 500, SYSDATE FROM EMP WHERE JOB = 'MANAGER';
Example: Insert values in a table using parameter substitution (& operator is used for it 1, 2 are the field numbers).
INSERT INTO EMP #VALUES (&1,'&2','&3', &4, &5, &6,NULL, &7);
Please note these values required to be supplied at run time.
UPDATE Command: Syntax is UPDATE = WHERE ;
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Consider the subsequent relations RENTER(rno, fname, lname, address, tel_no, pref_type, max_rent) VIEWING(rno, pno, date, comment) PROPERTY_FOR_RENT( pno, street, area ,city,
as a customer service employee, explain five measures you would recommend a displeased student to patronise a school canteen
Describe multi key files
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Increases efficiency : Data is stored close to most often used site, therefore retrieval would be faster. Also, data that is not required by local applications is not stored, there
Critically evaluate the bulleted list of information-related items in this case study. How are each contradictory to the notion of being an information-literate knowledge worker?
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