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 3713

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

1 4035

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

2 5255




Explain the difference between FLOAT, DOUBLE and REAL.

Yahoo,

14 58838

Explain the difference between BOOL, TINYINT and BIT?

1 4401

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

2841

Explain MySQL architecture?

1 11587

Explain MySQL locks?

1 3474




Explain multi-version concurrency control in MySQL?

2 7156

What are MySQL transactions?

2 3334

What is ACID?

2 3512

Which storage engines support transactions in MySQL?

2 4976

How do you convert to a different table type?

1 2442

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

2 3102

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

Wipro, CSS, Aufait,

4 10827


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Un-Answered Questions { MySQL }

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

1621


How to define numeric 9(3) in db2 table without decimal point??

1796


1)for snapshot replication which agents used? 2)for Transcation replication which agents used? 3)for merge replciation which agents used?

954


What is RMS Migrations

1172


I want to insert userid of a customer,order time,etc in a table called ordermaster with orderid as primary key.Same time the product codes and required quantities (a1,2 and a2 4 and so on)inserted in another table orderdetails with same orderid reference.How the code will be in JSP using MySQL?

871






i made a table whih contain a column "Photo" with image data type and i want to insert the byte of a picture present in my hardisk using insert statement in that colum... so what will be my insert statement?

1494


explain GROUPBY & HAVING clause with examples.

1197


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

1040


What are the method you will follow while sql installing

1261


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.

2447


Explain the architecture models of SQL Server?

1289


In a property booking section want a query to check that property is booked from StartDate to EndDate.Booking Table field are given id proerty_id start_date checkout_date no_of_visitor booking date status Waiting yours answer.. Thanks In Advance...

1720


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

512


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

1175


why not null is not allowed at table level

1482