This SQL Server tutorial explains how to use theWHERE clausein SQL Server (Transact-SQL) with syntax and examples. Description The SQL Server (Transact-SQL) WHERE clause is used to filter the results from a SELECT, INSERT, UPDATE, or DELETE statement. Syntax The syntax for the WHERE clause ...
Example: WHERE clause using comparison conditions in SQL The provided SQL query retrieves the employee ID, first name, last name, and salary of employees with a salary greater than or equal to 4000.Sample table : employees employee_id first_name last_name email phone_number hire_date job_id...
ExampleGet your own SQL ServerSelect all customers from Mexico:SELECT * FROM Customers WHERE Country='Mexico'; Try it Yourself » SyntaxSELECT column1, column2, ... FROM table_name WHERE condition; Note: The WHERE clause is not only used in SELECT statements, it is also used in UPDATE,...
This SQL tutorial explains how to use the SQL WHERE clause with syntax and examples. The SQL WHERE clause is used to filter the results and apply conditions in a SELECT, INSERT, UPDATE, or DELETE statement.
Note:In SQL, we must enclose textual data inside either single or double quotations like'USA'. SQL Operators TheWHEREclause uses operators to construct conditions. Some of the commonly used operators are: 1. Equal to Operator (=) -- select all columns from Customers table with first name '...
There is a separate article in our blog for those willing to learn more about thedifference between EXISTS and NOT EXISTS in SQL. Using MySQL WHERE clause with comparison operators As we know, theWHEREcondition value can be any number, text, string, or subquery. Besides specifying the conditio...
WHERE Clause The WHERE clause is used to filter the result set based on the condition specified following the word WHERE. The WHERE clause can be used with the following types of SQL statements: SELECT UPDATE DELETESyntaxThe syntax for using WHERE in the SELECT statement is as follows: ...
Quick BI数据集的SQL参数设置默认值后保存报错“unkown column 'projectname' in 'where clause'”。 问题原因 SQL参数默认值设置为了:参数名=‘【字段值】’,此设置方式不正确,正确方法为:物理字段名=‘【字段值】’。 解决方案 修改数据集SQL参数的默认值,使用正确的设置方法。举例如下: ...
Where clause is used to fetch a particular row or set of rows from a table. This clause filters records based on given conditions and only those row(s) comes out as result that satisfies the condition defined in WHERE clause of the SQL query. SQL Where C
MySQL WHERE Clause The `WHERE` clause in MySQL is used to filter records in a SQL statement, allowing you to specify conditions that must be met. It is commonly used to narrow down query results, making data retrieval more efficient and specific....