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 3564

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

1 3873

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

2 5103




Explain the difference between FLOAT, DOUBLE and REAL.

Yahoo,

14 56877

Explain the difference between BOOL, TINYINT and BIT?

1 4272

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

2740

Explain MySQL architecture?

1 11181

Explain MySQL locks?

1 3284




Explain multi-version concurrency control in MySQL?

2 6839

What are MySQL transactions?

2 3198

What is ACID?

2 3357

Which storage engines support transactions in MySQL?

2 4646

How do you convert to a different table type?

1 2326

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

2 2936

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

Wipro, CSS, Aufait,

4 10598


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Un-Answered Questions { MySQL }

Hi Team, This is kartik, I recently completed my B-tech. Importance of posting this question is for to know the best books on SQL(MYSQL/Oracle)? I like SQL concept's so much, at the same time i decided to choose SQL for my career purpose. So please suggest me the best books that are very helpful for a fresher to improve concepts like (SQL/PLSQL)Basics, programming concepts, architectures etc. Please consider my request as an important one. I am very thankful to you for providing this opportunity. If possible can you please send the names of books for my personal id also: karthikgdv1206@yahoo.com. Thanks, Kartik T

971


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

3470


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

1059


How can you move the master database

791


What are the method you will follow while sql installing

1177






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?

788


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

873


How internally data stores in MyISAM and INNODB table types?

1350


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

422


What are the critical issues you have resolved in your company

982


all the queries used in sql

1432


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

1524


suppose data is copie to oracle to sql by using DTS. Actully it taken 2 hours. suppose some day distribute the server in the middle of 2 hours. after how can i get the data ?

963


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?

1417


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

241