New MySQL Interview Questions :: ALLInterview.com

how we can find nth max salary from an employe table by using my sql

SELECT country,city FROM customers GROUP BY country ORDER BY city

is right or not

Fname Lname City Pin ramesh kumar salem 365241

select ucase(mid(Fname,1,1)) as FirstName,ucase(mid(Lname,1,1)) as LastName,ucase(mid(City,3,1)) as Cty,ucase(mid(Pin,-3))as PinCode from tablename

Query to select passwords from a table having a column "Password

SELECT Password FROM tablename WHERE Password LIKE 'A%' AND Length( Password) >=8 AND Length( Password) <=15

What is the maximum length of a table name, a database name, or a fie

Database name: 64 characters Table name: 64 characters Column name: 64 characters

How many ways we can we find the current date using MySQL?

SELECT CURDATE(); SELECT CURRENT_DATE(); SELECT CURTIME(); SELECT CURRENT_TIME();

Give the syntax of GRANT commands?

The generic syntax for GRANT is as following GRANT [rights] on [database] TO [username@hostname] IDENTIFIED BY [password] Now rights can be: a) ALL privilages b) Combination of CREATE, DROP, SELECT, INSERT, UPDATE and DELETE etc. We can grant rig

Give the syntax of REVOKE commands?

The generic syntax for revoke is as following REVOKE [rights] on [database] FROM [username@hostname] Now rights can be: a) ALL privilages b) Combination of CREATE, DROP, SELECT, INSERT, UPDATE and DELETE etc. We can grant rights on all databse by

What is the difference between CHAR and VARCHAR data types?

CHAR is a fixed length data type. CHAR(n) will take n characters of storage even if you enter less than n characters to that column. For example, “Hello!” will be stored as “Hello! ” in CHAR(10) column. VARCHAR is a variable length data type.

what is mysql optimization in brief?

how many ways we can get the current date in mysql?

current_Date->return the current date

how many table created when we create a table in mysql?

how many fields can be updated using set in a mysql query?

maximum size of a database in mysql?

what is the advantage of stored procedures, triggers and indexing in