The correct answer is option D (Select distinct). Select distinct statement is used to return only different values that match the specified criteria.
Which SQL statement is used to return only different values?
The SQL SELECT DISTINCT Statement
The SELECT DISTINCT statement is used to return only distinct (different) values. Inside a table, a column often contains many duplicate values; and sometimes you only want to list the different (distinct) values.
Which SQL statement is used to return only different values select different select unique select distinct select all?
Which SQL statement is used to return only different values? Explanation: The SELECT DISTINCT statement is used to return only distinct (different) values.
Can we use unique in select query?
DISTINCT or UNIQUE keyword in SQL is used with SELECT statement/query to select only unique records from a table, i.e. it eliminates all duplicate records from a table.
Which key word is used to select only unique values?
The distinct keyword is used in conjunction with select keyword. It is helpful when there is a need of avoiding duplicate values present in any specific columns/table. When we use distinct keyword only the unique values are fetched.
How do I get unique values in SQL?
MySQL – Distinct Values
To get unique or distinct values of a column in MySQL Table, use the following SQL Query. SELECT DISTINCT(column_name) FROM your_table_name; You can select distinct values for one or more columns. The column names has to be separated with comma.
What is the use of distinct statement in SQL?
The SQL DISTINCT keyword is used in conjunction with the SELECT statement to eliminate all the duplicate records and fetching only unique records. There may be a situation when you have multiple duplicate records in a table.
What is the meaning of distinct in MySQL?
Description. The MySQL DISTINCT clause is used to remove duplicates from the result set. The DISTINCT clause can only be used with SELECT statements.
What is difference between unique and distinct in SQL?
The main difference between Unique and Distinct in SQL is that Unique helps to ensure that all the values in a column are different while Distinct helps to remove all the duplicate records when retrieving the records from a table.
What is alter table in SQL?
The ALTER TABLE statement is used to add, delete, or modify columns in an existing table. The ALTER TABLE statement is also used to add and drop various constraints on an existing table.
Which SQL keyword is used to retrieve only unique rows?
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What is select unique Oracle?
Introduction to Oracle SELECT DISTINCT statement
The DISTINCT clause is used in a SELECT statement to filter duplicate rows in the result set. It ensures that rows returned are unique for the column or columns specified in the SELECT clause.