Why is a primary key important?

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How to run sql statements through the web interface?

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What is fmtonly in sql?

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one of the column in my table contains the data like SAL ---- 1000 1000 2000 3000 3000 So my requirement is i want output like SAL --- 1000 2000 3000 it mean i want to delete duplicate rows only how should u write query?

9 Answers   TCS,

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How to delete same emp id in sql query for exmaple in emp table emp id, empname, emp address. for example emp id =5, repeated in two times in rows same id how to delete same empid please any one of the write query send in my id

8 Answers   CGCI,

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how can we write a column values horizontal by using sql stmt; ex: select name from table_name;(actual output) a b c d require output is a b c d

5 Answers   Honeywell, Interact,

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what is julian date in oracle

2 Answers  

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How many types of sql are there?

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What is sql mysql pl sql oracle?

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What is the difference between inner join and outer join?

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Explain what is rdbms?

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Does inner join return duplicate rows?

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