Skip to content
Related Articles

Related Articles

SQL | SELECT Query
  • Difficulty Level : Easy
  • Last Updated : 09 Jan, 2019

Select is the most commonly used statement in SQL. The SELECT Statement in SQL is used to retrieve or fetch data from a database. We can fetch either the entire table or according to some specified rules. The data returned is stored in a result table. This result table is also called result-set.

With the SELECT clause of a SELECT command statement, we specify the columns that we want to be displayed in the query result and, optionally, which column headings we prefer to see above the result table.

The select clause is the first clause and is one of the last clauses of the select statement that the database server evaluates. The reason for this is that before we can determine what to include in the final result set, we need to know all of the possible columns that could be included in the final result set.

Sample Table:
table
Basic Syntax:

SELECT column1,column2 FROM table_name 
column1 , column2: names of the fields of the table
table_name: from where we want to fetch

This query will return all the rows in the table with fields column1 , column2.



  • To fetch the entire table or all the fields in the table:
     SELECT * FROM table_name;
  • Query to fetch the fields ROLL_NO, NAME, AGE from the table Student:
    SELECT ROLL_NO, NAME, AGE FROM Student;

    Output:

    ROLL_NONAMEAge
    1Ram18
    2RAMESH18
    3SUJIT20
    4SURESH18
  • To fetch all the fields from the table Student:
     SELECT * FROM Student;

    Output:

    ROLL_NONAMEADDRESSPHONEAge
    1RamDelhiXXXXXXXXXX18
    2RAMESHGURGAONXXXXXXXXXX18
    3SUJITROHTAKXXXXXXXXXX20
    4SURESHDelhiXXXXXXXXXX18

This article is contributed by Harsh Agarwal. If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above.

My Personal Notes arrow_drop_up
Recommended Articles
Page :