Answer Posted / renu kakkar
PRIMARY REPRESENTS THE ROW/TUPPLE UNIQUELY WHEREAS
SECONDARY KEY REPRESENTS THE SET OF TUPPLES
EMPLOY_ID IS A PRIMARY KEY AND EMPLOY_DEPTT. IS A SECONDARY
KEY.
| Is This Answer Correct ? | 3 Yes | 9 No |
Post New Answer View All Answers
Is there a pl/sql pragma similar to deterministic, but for the scope of one single sql select?
What is the difference between between and in condition operators?
Why do we use triggers?
Can we use loop in sql?
1) Synonyms 2) Co-related Subquery 3) Different Jobs in Plsql 4) Explain Plan 5) Wrap 6) Query Optimization Technique 7) Bulk Collect 8) Types of index 9) IF primary key is created then the index created ? 10) Foreign Key 11) Exception Handling 12) Difference Between Delete and Trunc 13) Procedure Overloading 14) Grant Revoke 15) Procedure Argument types. 16) Functions. 17) Joins
What is a column in a table?
what are the security recommendations while using mysql? : Sql dba
tell me about various levels of constraint. : Sql dba
How do I sort a table in sql?
How do I add a primary key to a table?
Explain select statements in sql?
How do I run a pl sql program?
Does db2 use sql?
Can we perform dml in function?
what is timestamp in mysql? : Sql dba