In SQL, which command is used to SELECT only one copy of each set of duplicable rows ? 1. SELECT DISTINCT 2. SELECT UNIQUE 3. SELECT DIFFERENT 4. All of the above

Informatics Practices

In SQL, which command is used to SELECT only one copy of each set of duplicable rows ?
SELECT DISTINCT
SELECT UNIQUE
SELECT DIFFERENT
All of the above

SQL Queries

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Answer

SELECT DISTINCT

Reason — The SELECT DISTINCT statement is used in SQL to return only unique (distinct) values within the result set. It removes duplicate records, ensuring that each row in the result set is unique.

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Informatics Practices

In SQL, which command is used to SELECT only one copy of each set of duplicable rows ?
SELECT DISTINCT
SELECT UNIQUE
SELECT DIFFERENT
All of the above

SQL Queries

Answer

Related Questions

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Which comparison operator may be used to fill the blank space in above query ?
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Informatics Practices

In SQL, which command is used to SELECT only one copy of each set of duplicable rows ?SELECT DISTINCTSELECT UNIQUESELECT DIFFERENTAll of the above

SQL Queries

Answer

Related Questions

The …………… clause of SELECT query allows us to select only those rows in the result that satisfy a specified condition.Wherefromhavinglike

Consider the following query :SELECT name FROM class WHERE subject ............... NULL; Which comparison operator may be used to fill the blank space in above query ?=LIKEISIS NOT

Which of the following types of table constraints will prevent the entry of duplicate rows?UniqueDistinctPrimary KeyNULL

Ravisha has stored the records of all students of her class in a MYSQL table. Suggest a suitable SQL clause that she should use to display the names of students in alphabetical order.SORT BYALIGN BYGROUP BYORDER BY

In SQL, which command is used to SELECT only one copy of each set of duplicable rows ?
SELECT DISTINCT
SELECT UNIQUE
SELECT DIFFERENT
All of the above

The …………… clause of SELECT query allows us to select only those rows in the result that satisfy a specified condition.
Where
from
having
like

Consider the following query :
`SELECT name FROM class WHERE subject ............... NULL;`
Which comparison operator may be used to fill the blank space in above query ?
=
LIKE
IS
IS NOT

Which of the following types of table constraints will prevent the entry of duplicate rows?
Unique
Distinct
Primary Key
NULL

Ravisha has stored the records of all students of her class in a MYSQL table. Suggest a suitable SQL clause that she should use to display the names of students in alphabetical order.
SORT BY
ALIGN BY
GROUP BY
ORDER BY