Can we create foreign key without primary key?
Why does sql need a server?
If we declare constraints Unique and Not null on a single column then it will act as a Primary key, so what is the use of primary key??
what is the correct way of selection statement a. select/from/table_name/orderby/groupby/having b. select/from/table_name/groupby/having/orderby
5 Answers HCL, JPMorgan Chase,
What is identity column in sql server?
What is the use of non clustered index?
what is a composite key ? : Sql dba
What is the maximum number of rows in sql table?
How does cross join work in sql?
Describe the Index, Types of index, At what situation we have used? Which one s better than others?
Could you please provide oca (oracle 10g) dumps for my certification ?
How do I remove all records from a table?
How many sectors are in a partition?