what is the query for retrieve the unique values(not display
the duplicates values) from single table?
Answers were Sorted based on User's Feedback
Answer / tdguy
If its for few columns and small table, use distinct or
group by to fetch only unique values. But for more no of
columns and more no of records in GB, use partition by to
fetch only unique values.
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Answer / mohith.dmdw
select distinct <column_name> from <table_name>;
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IN A TABLE CAN WE USE PRIMARY KEY IN ONE COLUMN AND IN ANOTHER COLUMN BOTH UNIQUE AND NOT NULL CONSTRAINS.IF YES HOW?PLZ GIVE ME A EXAMPLE.
Hi frnds...can any one help me regarding this que.. We have column in a table name it as C1 WHICH CONTAIN ALPHANUMERIC AND NUMERIC VALUES. C1 2A 2B 2V 2H 1 2 3 4 5 i want to retrive numeric values like 1,2,3,4,5 How we can get Plz let me know.Thanks in advance