Differences between UNIQUE and DISTINCT in select statements
Answer Posted / howard cheon
DISTINCT AND UNIQUE are same operation.
But, You cannot specify DISTINCT if the select_list
contains LOB columns.
Is This Answer Correct ? | 16 Yes | 16 No |
Post New Answer View All Answers
How do you get column names only for a table (sql server)?
Can I copy :old and :new pseudo-records in/to an oracle stored procedure?
How does pl sql work?
how to shut down the server with 'mysqladmin'? : Sql dba
what is the difference between rownum pseudo column and row_number() function? : Sql dba
what is a constraint? : Sql dba
What is number function in sql?
Is pl sql and postgresql same?
Define select, insert, create, delete, update, drop keywords
What is record type in pl sql?
Are there any features that are decommissioned in 11g that are not present in 11g?
What is the use of function "module procedure" in pl/sql?
what is the bond code in materialized view?
What is trigger in pl sql with examples?
what is query cache in mysql? : Sql dba