Question
In database management, which SQL command is used to
retrieve only unique (non-duplicate) values from a column?Solution
The DISTINCT keyword in SQL eliminates duplicate rows from query results. Syntax: SELECT DISTINCT column_name FROM table_name;Â DISTINCT can be applied to multiple columns. For example: SELECT DISTINCT BranchID, ProductType FROM Accounts; returns unique combinations of branch and product.Â
‘A # B’ means ‘A is the brother of B’.
‘A @ B’ means ‘A is the daughter of B’.
‘A & B’ means ‘A is the husband of B�...
Statements:
Some telescopes are periscopes.
Some telescopes are microscopes.
Some telescopes are kaleidoscopes.
Conclusio...
Select the number from among the given options that can replace the question mark (?) in the following series.
96, 85, 76, 69, ?
In the question below some statements are given followed by three conclusions I, II and III. You have to take the given statements to be true even if t...
What is the relation of T with respect to S?
Select the letter cluster from among the given option that can replace the question mark (?) in the following series.
SRHF, QTFH, OVDJ, MXBL, ?
Select the option in which the given figure is embedded (rotation is NOT allowed).
Who lives on floor number five?
 In each of the questions below some statements are given followed by some Conclusions. You have to take the given statements to be true even, if the...
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