Can we have more than one NULL in a column having unique
constraint?

Answer Posted / habibur rahaman

It depends upon the database on which you are working.....in SQL we can have only one value but in oracle we can have n no of values.......i did it practically.

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what stored procedure can you use to display the current processes? : Sql server administration

530


What languages bi uses to achieve the goal?

511


Explain having clause and where clause?

583


What type of Index will get created after executing the above statement?

644


Which tools are available to manage SQL Azure databases and servers?

93






How to find Duplicate Records In table?

587


What is the difference between delete and truncate statements?

571


Explain unique key in sql server?

540


What is hierarchy, what are its types and difference between them? : sql server analysis services, ssas

701


What is the difference between resultset and resultsetmetadata?

519


What are partitioned views and distributed partitioned views?

604


Explain transaction isolation levels in sql server?

551


How to run queries with sql server management studio express?

573


Is it true that rules do not apply to data already existing in a database at the time the rule is created?

563


Explain security with sql azure?

161