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SQL -Structured Query Language - Sql Select - Select - Count Quiz

#Quiz
1
Discuss
Select - Count

Which SQL function is used to count the total number of rows in a SQL query?

  • 1]

    SUM()
  • 2]

    COUNT()
  • 3]

    AVG()
  • 4]

    COUNT(*)
Solution

COUNT(*) is used to count the total no. of row including null.
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SQL -Structured Query Language

SQL -Structured Query Language

  • Introduction
  • Overview
    • How To Download And Install MySql Workbench
    • SQL Syntax
  • SQL Database
    • Create Database
    • Drop Database
    • Use / Select Database
  • SQL Table
    • Create Table
    • Alter - Rename Table
    • Alter - Add Column
    • Alter - Modify Column
    • Alter - Rename Column
    • Alter - Drop Column
    • Copy Table
    • Drop Table
  • SQL Insert
    • Insert Record
  • Sql Update
    • Update Record
  • Sql Select
    • Select Record
    • Select - Count
    • Select - Average
    • Select - Sum
    • Select - Min Max
    • Select - Distinct
    • Select - Limit
    • Select - First
    • Select - Last
  • Sql Clause
    • Like Clause
    • And Operator
    • Or Operator
    • Between & Not Between Operator
    • As or Alias
    • In Clause
    • Group By Clause
    • Having Clause
  • Sql Order By
    • Ascending
    • Descending
    • Random
    • Ascending Descending Multiple Column
  • SQL Joins
    • Joins and its type
    • Inner Join
    • Left Join
    • Right Join
    • Full Join
    • Cross Join
  • SQL View
    • Create View
    • Update View
    • Delete View
  • SQL Delete
    • Delete Table
    • Truncate Table
  • Sql Key & Constraint
    • Primary Key
    • Foreign Key
    • Unique Key
    • Not Null Constraint
    • Check Constraint
    • Default Constraint
  • Normalization
    • Overview
    • 1 NF
    • 2 NF
    • 3 NF
    • Boyce Codd normal form ( BCNF )

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