Data Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Topic :: Data

Data Interview Questions

Questions Answers Views Company eMail

How can we create a database using PHP and mysql?

3 7817

How can we encrypt and decrypt a data present in a mysql table using mysql?

Microsoft,

3 15851

How can I retrieve values from one database server and store them in other database server using PHP?

DRC Systems, Photon,

2 13633

What are the different methods of passing data or information between two calls of a web page? What are the advantages/disadvantages of these methods?

Ardo, Patni,

4 18233

What is the maximum length of a table name, database name, and fieldname in MySQL?

Accenture, Pioneer, TISL,

3 30996

What is maximum size of a database in MySQL?

Bastioncoup, CIS, NM, V2 Solutions, Wipro,

13 43114

What is the difference between char and varchar data types?

6 48032

How to load data from a text file into a table?

Sasaa,

7 15654

How can we change the name and data type of a column of a table?

Google,

9 26274

A company wants to store their invoices in a database. They already have their customers and articles in that database. Both customer and article are each identified by an unique integer value. Please create the SQL statements for creating the necessary table(s) for storing the invoices in a MySQL database. An invoice should hold information like invoice number, customer, date, article(s) and quantity etc.

1 4510

For the database from the previous question, please give an SQL query which returns the invoice number of all invoices which contain the article with the number ?1234?. The query should be able to run under a MySQL 4.0 database.

1 3764

How would you backup and restore a big MySQL database? What are the advantages of the approach which you have taken over the others?

4 11034

The table tbl_sites contains the following data: ----------------------------------------------------- Userid sitename country ------------------------------------------------------ 1 sureshbabu indian 2 PHPprogrammer andhra 3 PHP.net usa 4 PHPtalk.com germany 5 MySQL.com usa 6 sureshbabu canada 7 PHPbuddy.com pakistan 8. PHPtalk.com austria 9. PHPfreaks.com sourthafrica 10. PHPsupport.net russia 11. sureshbabu australia 12. sureshbabu nepal 13. PHPtalk.com italy Write a select query that will displayed the duplicated site name and how many times it is duplicated?

Afixi, GE,

4 9764

What are the ways to show data grid inside a data grid for a master details type of tables?

1 4989

If we write any code for DataGrid methods, what is the access specifier used for that methods in the code behind file and why?

Cap Gemini,

2586