MySQL Interview Questions
Questions Answers Views Company eMail

what if you really want to store the timestamp data, such as the publication date of the article?

2 3591

What happens if a table has one column defined as TIMESTAMP?

1 3908

If you specify the data type as DECIMAL (5,2), what?s the range of values that can go in this table?

2 5143




Explain the difference between FLOAT, DOUBLE and REAL.

Yahoo,

14 57508

Explain the difference between BOOL, TINYINT and BIT?

1 4306

How to enable or disable a row of a table using MySQL in struts?

2761

Explain MySQL architecture?

1 11306

Explain MySQL locks?

1 3326




Explain multi-version concurrency control in MySQL?

2 6940

What are MySQL transactions?

2 3229

What is ACID?

2 3390

Which storage engines support transactions in MySQL?

2 4753

How do you convert to a different table type?

1 2347

How do you index just the first four bytes of the column?

2 2973

What?s the difference between PRIMARY KEY and UNIQUE in MyISAM?

Wipro, CSS, Aufait,

4 10668


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Un-Answered Questions { MySQL }

Please can the SQL code below be interpreted IF @xMatchCriteria='MATCH12' BEGIN IF EXISTS (Select * from #InsightData where (EmailAddress=@xDCPEmailAddress ) ) BEGIN SET @xTestMatchCriteria = @xMatchCriteria; SELECT @xCRMCustomerId=CustomerId, @xCRMDcpCustomerId=DcpCustomerId, @xCRMPortalCustomerID=PortalCustomerID,@xCRMDcpID=DcpID, @xCRMCardNumber=CardNumber, @xCRMEmailAddress=EmailAddress, @xCRMfirtLetterFirstName=firtLetterFirstName, @xCRMLastName=Surname,@xCRMAddressLine1=AddressLine1, @xCRMPostCode=PostCode FROM #InsightData where (EmailAddress=@xDCPEmailAddress ) END ELSE BEGIN SET @xTestMatchCriteria='No'+@xMatchCriteria; END END

446


Can u give the example by taking an unnormalized table and make that 1nf and then 25nf, and then 3 nf?

3500


HOW TO FIND display the total number of weeks in the year of 1998 IN EMP TABLE

960


using primary can we relate two table, with out foreign key?

1549


what is mySQL. Is there any specific qualification required to do this course ? What is the scope in India after doing mySQL

277






How to set the time zone for MySQL to particular country time?

2010


how to get only updated, deleted , inserted records after certain interval time in mysql with out using triggers...

1079


why not null is not allowed at table level

1405


How to enable or disable a row of a table using MySQL in struts?

2761


1.how to fetch a value and Execute store procudure in mysql(INNODB) using phpMyAdmin? 2.can i wright a package in mysql database(INNODB)?

1042


What are the critical issues you have resolved in your company

1010


I've looked but can't find a MySQL equivalent for MS SQL's xp_cmdshell. I have 7z files that I want to unzip and load into MySQL. I'm trying to write a sp to do the unzip, but I can't find a way to do that. Can anyone provide an example of a similar process in Windows? TIA.

2310


explain GROUPBY & HAVING clause with examples.

1128


What are the method you will follow while sql installing

1200


What is RMS Migrations

1079