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  1. www.geeksforgeeks.org › sql-where-clauseSQL | WHERE Clause - GeeksforGeeks

    12 Απρ 2024 · It is used to fetch data according to particular criteria. WHERE keyword can also be used to filter data by matching patterns. Syntax: SELECT column1,column2 FROM table_name WHERE column_name operator value; Parameter Explanation: column1,column2: fields in the table. table_name: name of table.

  2. www.w3schools.com › SQl › sql_whereSQL WHERE Clause - W3Schools

    The WHERE clause is used to filter records. It is used to extract only those records that fulfill a specified condition. Example. Select all customers from Mexico: SELECT * FROM Customers. WHERE Country='Mexico'; Try it Yourself » Syntax. SELECT column1, column2, ... FROM table_name. WHERE condition; Note: The WHERE clause is not only used in .

  3. www.geeksforgeeks.org › difference-between-where-and-having-clause-in-sqlDifference between Where and Having Clause in SQL

    6 Μαρ 2024 · The difference between the having and where clause in SQL is that the where clause cannot be used with aggregates, but the having clause can. The where clause works on row's data, not on aggregated data.

  4. www.geeksforgeeks.org › sql-subquerySQL | Subquery - GeeksforGeeks

    30 Ιουλ 2024 · You can place the Subquery in a number of SQL clauses: WHERE clause, HAVING clause, FROM clause. Subqueries can be used with SELECT, UPDATE, INSERT, DELETE statements along with expression operator. It could be equality operator or comparison operator such as =, >, =, <= and Like operator. A subquery is a query within another query.

  5. www.sqlforgeeks.com › sql-clauseSQL Clauses - SQL for Geeks

    1. SELECT clause : This clause is used to retrieve/get data from table (s) in the database. SELECT column_name (s) FROM table_name; Copy. 2. FROM clause : This clause is used to specify table name (s) from where data will be retrieved. SELECT column_name (s) FROM table_name; Copy. 3. WHERE clause :

  6. hightouch.com › sql-dictionary › sql-whereSQL WHERE - Syntax, Use Cases, and Examples | Hightouch

    The basic syntax of the SQL WHERE clause is as follows: SELECT column1, column2, ... FROM table_name. WHERE condition; SELECT: Specifies the columns you want to retrieve. FROM: Indicates the table from which you want to retrieve data. WHERE: Followed by the condition that specifies which rows to include in the result set. Parameter Values.

  7. learnsql.com › cookbook › how-use-multiple-where-conditions-in-single-query-sqlHow to Use Multiple WHERE Conditions in a Single Query

    To filter data by multiple conditions in a WHERE clause, use the AND operator to connect the conditions. Here’s what this looks like for two conditions: WHERE condition1 AND condition2. In our example, condition1 is dept = 'Finance' and condition2 is salary > 4000. Using the AND operator, you may chain as many conditions as you want.

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