What is the difference between distinct and unique in sql?
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What are the packages in pl sql?
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How many joins in sql?
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TABLE A TABLE B EMPNO ENAME EMPNO ENAME 1 A 1 A 2 B 2 B 3 C 3 C 4 D 4 D 5 E 5 E 6 F 7 G HOW TO GET THE UNMATCHED RECORDS IN SQL QUERY?
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consider a table which contain 4 columns,ename,eno,sal and deptno, from this table i want to know ename who having maximum salary in deptno 10 and 20.