What is sql entity?


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More SQL PLSQL Interview Questions

How would you convert date into julian date format?

0 Answers  


What is nvarchar in sql?

0 Answers  


mail-id table contains two columns(email_id,userid) it contains different types of mail-ids,and no of users. here username length is differ na,(ex- tamil@yahoo.com,joshua@hotmail.com like) now i want to fetch the email-ids only starting from '@' (ex-@gmail.com,@yahoo.com,@hotmail.com

5 Answers  


In table a 1lakh data is present,in table b 20 thousand data is present, to get unique data from table a and b which join to be considered. whether right outer join or left inner join. 

2 Answers   GE,


what is meant by forward declaration in functions?

4 Answers   TCS,






explain normalization concept? : Sql dba

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If you want a column to be part of the result set, after which SQL keyword does it belong? 1. SELECT 2. FROM 3. WHERE 4. GROUP BY 5. HAVING

10 Answers   HCL, TCS,


How to select 10 records from a table?

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how to achieve this problem?i am having table with two colums like empno,gender. in gender column, i am having records male,female like that .my final output will be male female 5 6

4 Answers   Hexaware,


i have table T!. A B C D NULL 1 2 3 4 NULL 5 6 7 8 NULL 9 10 11 12 NULL. I WANT COUNT OF NULL VALUES IN TABLE. WRITE A QUERY.

14 Answers   iGate, Wipro,


what is the difference between trigger and constraint?

3 Answers   HSBC,


what is a tablespace? : Sql dba

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