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DB2 Interview Questions
Questions Answers Views Company eMail

Q3. How will you fetch duplicate values from a DB2 table?

RBS,

2 12980

Q4. How will you get the count of record without using COUNT verb in query?

IBM,

2 10719

For Null indicator we have 3 values 0,-1,-2. 0->Not nulll -1->Null -2->Value truncated If ther is any possibility to have any positive value other than 0 in Null indicator.If it is so then when we will get and what is the value?

BNP Paribas,

1 3931

query to just fetch first matching row and stop execution. once one matching row is found ..no more records should be checked.. if the first record is matching.. the query must stop

IBM,

2 3470

Where to download IBM DB2 Certification Dumps for the below: C2090-311 : IBM DB2 10.5 DBA for LUW Upgrade from DB2 10.1 C2090-312 : IBM DB2 11 DBA for z/OS C2090-313 : DB2 11 Application Developer for z/OS C2090-317 : DB2 11 System Administrator for z/OS C2090-541 : DB2 9.7 DBA for Linux UNIX and Windows C2090-543 : DB2 9.7 Application Development C2090-544 : DB2 9.7 Advanced DBA for LUW C2090-545 : DB2 9.7 SQL Procedure Developer C2090-546 : DB2 9.7 Database Administrator for Linux UNIX or Windows Upgrade C2090-610 : DB2 10.1 Fundamentals C2090-611 : DB2 10.1 DBA for Linux, UNIX, and Windows C2090-612 : DB2 10 DBA for z/OS C2090-614 : DB2 10.1 Advanced DBA for Linux UNIX and Windows C2090-615 : DB2 10.5 Fundamentals for LUW C2090-617 : DB2 10 System Administrator for z/OS C2090-730 : DB2 9 Family Fundamentals C2090-733 : DB2 9 Application Developer C2090-735 : DB2 9.5 SQL Procedure Developer C2090-737 : DB2 9 System Administrator for z/OS Exam

Mphasis,

1 3560

Could you please let me no the query for below I have table name xyx under this there is column name called employee name which starts from 100th column ends 120th column,now i want to replace only column from 101 to 104 which contains ABCS to replace with PQRS for all records which comes beetween 101 to 104 ..how to write query for this..

HSBC,

1 2006

have 3 tables table1, table2 and table3 which contains employee information. table1 is master table, table2 contains emp details like emp no and so on, table 3 contains emp salary. so if any emp leave company between 25th - 30th of every month it has to get updated in tables. but it is not getting updated. What is the reason.

755

What will happen, while trying to close the closed cursor.

1 1149

How to restart a DB2 program?

Cognizant,

878

How can you get the number of rows impacted by the last executed query?

1 1187

While unloading huge amount of data from table. Suddenly job failed some error. Imagine 1M data unloading, In that 90% data unloaded only 10% left, So if want to unload the rest 10% what needs to be done? Whether do i need to start from top or anything ?

JPMorgan Chase,

1114

How to fetch the uncommited data from table ?

JPMorgan Chase,

1 1408

I am having n number of records in a table which consists of emp-name is one of the field among them. Now i want to change the first letter of every name with capital.

Cap Gemini,

762

assume ther are 5000 records in a database and want to fetch using cursor. cursor fetches only 3000 records and fetch is not happening for remaining 2000 records. why it happens and how to rectify it

TCS,

1 1502

in db2, already 10 columns arie der, and i want to insert 11th column. what parameters u wil consider for insertion and how will u insert

TCS,

1 1537


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Un-Answered Questions { DB2 }

What is runstats utility in db2?

157


How can record locking be achieved in those DB2 versions which do not support it?

200


Are views updateable?

204


How to check last update on table in db2?

174


How do you stop a db2 database in linux?

154






What is a bind in db2?

160


Which command is used to remove all rows from a table?

149


What is collection in db2 bind?

158


How to find the number of rows in db2 tables?

182


While unloading huge amount of data from table. Suddenly job failed some error. Imagine 1M data unloading, In that 90% data unloaded only 10% left, So if want to unload the rest 10% what needs to be done? Whether do i need to start from top or anything ?

1114


SET is the ANSI standard for variable assignment, SELECT is not. SET can only assign one variable at a time, SELECT can make multiple assignments at once. If assigning from a query, SET can only assign a scalar value. If the query returns multiple values/rows then SET will raise an error. SELECT will assign one of the values to the variable and hide the fact that multiple values were returned (so you'd likely never know why something was going wrong elsewhere - have fun troubleshooting that one) When assigning from a query if there is no value returned then SET will assign NULL, where SELECT will not make the assignment at all (so the variable will not be changed from it's previous value) As far as speed differences - there are no direct differences between SET and SELECT. However SELECT's ability to make multiple assignments in one shot does give it a slight speed advantage over SET.

1703


What is nvl in db2?

157


What is cursor stability in db2?

237


What is the max length of sqlca?

243


How do I change the column size in db2?

169