declare l1 number := null; l2 number :=null; begin if l1=l2 then message('equal'); else if l1<>l2 then message('not equal'); else message('else'); end if; end if; end; What will be the output ?

7 Answers   Oracle,

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What is the first action to perform a query? Suppose I have four tables and five joins and my query is getting slow day by day.

4 Answers   Hexaware,

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How to run sql statements through the web interface?

0 Answers  

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ERROR:Insert or update on table"accnt" violates foreign key constraints "acct_to_curr_symbol" DETAILS:KEY(accnt_curr_id)(-2)is not present in the table "curr_symbol" ......solve The Problem..

0 Answers   Wipro,

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How many functions are there in sql?

0 Answers  

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Its possible to add more than one primary key for the table

4 Answers  

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I have one table and column is c1 pk, c2 not null,c3 not null and 200 row in it and i add c4 column and value, how can is possible

9 Answers  

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How do you delete duplicates in sql query using rowid?

0 Answers  

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What is an intersect?

0 Answers  

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Can variables be used in sql statements?

0 Answers  

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Can we commit in trigger?

0 Answers  

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How can I create a table from another table without copying any values from the old table?

8 Answers  

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