Which function combines the two different columns?
ADD
MERGE
CONCAT
None of the above
Correct Answer :
C. CONCAT
CONCAT() function, combines the two different columns.
Related Questions
What is the difference between UNION & UNION ALL operators?
Combining the results of two select statements will be done using UNION whereas combined records from both queries are returned by UNION ALL operator.
Combining the results of two select statements will be done using UNION ALL whereas combined records from both queries are returned by UNION operator.
After performing the UNION operation, duplicate rows will not be removed whereas after performing the UNION ALL operation, duplicate rows will be removed.
None of the above
What is the work of SELECT command?
Database objects such as tables, table views, and other objects can be deleted using this command.
Database objects such as tables, table views, and other objects can be deleted using this command.
One or more rows from one or more tables of the database can be accessed with this command. Using the WHERE clause with this command is also possible.
It enables you to create new databases, tables, table views, and other objects using this command.
____ value is returned by the SQL Aggregate functions?
Single
Twice
NULL
Infinite
What does BOOL mean in MySQL Numeric Data Types?
A Boolean value is specified by this variable. When a value is nonzero, it is considered false, and zero is considered true.
A Boolean value is specified by this variable. When a value is nonzero, it is considered true, and zero is considered false.
A Boolean value is specified by this variable. When a value is nonzero, it is considered true, and zero is also considered true.
A Boolean value is specified by this variable. When a value is nonzero, it is considered false, and zero is also considered false.
What is SQL CREATE Table used for?
To Update table
To Create table
To Delete table
None of the above
Primary keys can be contained in a table only ____?
Once
Twice
Thrice
None of the above
In order to insert a row directly in the table, which command is used?
INSERT IN
INSERT INSIDE
INSERT UNDER
INSERT INTO
What is meant by Partial Database Control?
Business rules are hidden.
Users or professionals can't have the full control over the database.
Both A and B
None of the above
Bit is an integer that can be
0
1
Null
All of the above
Which keyword is used in SQL Server to implement the auto increment?
UNIQUE
IDENTITY
INCREMENT
ADD
In order to remove a primary key constraint, which clause is used?
DELETE
DROP
ALTER
REMOVE
Global Temp Variable is used with which sign?
###
####
#
##
What is TRUE about the Active/Dynamic Online Catalog based on the relational model in the 12 Codd's Rules?
The primary key value, table name, and column name are characteristics that allow us to access the precise data (atomic value) logically from a relational database.
Null values are treated in database records according to this rule.
Database dictionaries represent the complete logic of all descriptive data, which must be stored online.
None of the above
To get a record from one table, which is not present in another table, we can use the clause
CONCAT
COPY
EXCEPT
ALTER
What is the work of UPDATE command?
A single or multiple rows can be accessed using this command from one or more tables of a database. Using the WHERE clause with this command is also possible.
Using this command, you can remove or erase recorded information from a database table.
Database data can be updated or changed using this command.
It enables you to create new databases, tables, table views, and other objects using this command.
What does the UPDATE Statement do?
By deleting the stored data, this SQL statement deletes the database.
A new table in SQL is created using this SQL statement.
The stored data in the SQL database is changed or modified by this SQL statement.
Columns in the SQL database can be created, deleted, or modified with this SQL statement.
Using the SQL last() function, one can return the ______ value of the selected column.
First
Second
Third
Last
Command that comes under DML is/are
ROLLBACK
GRANT
UPDATE
All of the above
Unique Index is similar to
Primary Key
Foreign Key
Composite Key
Alternate Key
What does the following statement do?
Finds any values that start with a
Finds any values that start with a%
Finds any values that start with a and are at least 2 characters in length
All of the above
What is the difference between nvarchar and ntext?
nvarchar is fixed and ntext is variable.
nvarchar is variable and ntext is fixed.
nvarchar can be of the maximum size upto 4000 characters and ntext can be of the maximum size upto 2GB of the text data.
nvarchar can be of the maximum size upto 4000 characters and ntext can be of the maximum size upto 1GB of the text data.
Select the correct type(s) of SQL Comments.
Inline Comments
Single Line Comments
Multi-line Comments
All of the above
Which of the following is SQL Server String Data Type?
ntext
binary(n)
varbinary
All of the above
In the database table, data types describe the kind of ___ that it can contain.
Table
Data
Number
None of the above
What does the following statement do?
Finds any values that start with a and ends with o
Finds any values whose first character is a and third character is o
Both A. and B.
None of the above
What will be the output of the below SQL statement?
2021-10-06 00:00:00.000
2021-10-06
2021 OCT 06
06-10-2021
What does SQL stand for?
SQL stands for Sample Query Language
SQL stands for Structured Query List
SQL stands for Structured Query Language
SQL stands for Sample Query List
Which statement is TRUE about the HAVING Clause?
In order to group the rows, HAVING Clause is used.
In order to return the rows, HAVING Clause is used.
In order to select the defined groups by the GROUP BY Clause, HAVING Clause is used.
None of the above
Which of the following is not a SQL Logical Operator?
SQL Equal Operator
SQL ANY Operator
SQL BETWEEN Operator
SQL IN Operator
What does the DROP TABLE Statement do?
The table, its structure, views, permissions, and triggers will also be deleted or removed with this SQL statement.
A new table in SQL is created using this SQL statement.
Columns in the SQL database can be created, deleted, or modified with this SQL statement.
A new database will be created through this SQL statement.