What is a constraint. Types of constraints ?

Answer Posted / ravi

constraints are two types
1.Rule based constraint
2.cost based constraint

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is error ora-01000: maximum open cursors exceeded

604


Is sql port 1433 encrypted?

578


What is union and union all keyword in sql?

568


what are the differences among rownum, rank and dense_rank? : Sql dba

540


Why plvtab is considered as the easiest way to access the pl/sql table?

621






What is raw datatype in sql?

558


What is duration in sql profiler trace?

556


Explain what is rdbms?

584


What is the command used to fetch the first 5 characters of a string?

710


What is a database event trigger?

597


Can we call dml statement in function?

542


Define concurrency control. : Transact sql

587


Can we use ddl statements in stored procedure sql server?

520


Is sqlite good enough for production?

535


Can we perform dml in function?

598