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25 maj 2011 · Two options: Use the LIKE keyword, along with percent signs in the string. select * from table where field like '%a%' or field like '%b%'.
26 sty 2024 · Mastering the use of the WHERE, GROUP BY, and HAVING clauses can greatly enhance the performance and functionality of your MySQL queries. In this tutorial, we will explore these clauses, understand when and how to use them together, and see practical examples to consolidate the concepts covered.
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.
The MySQL WHERE Clause. The WHERE clause is used to filter records. It is used to extract only those records that fulfill a specified condition. WHERE Syntax. SELECT column1, column2, ... FROM table_name. WHERE condition; Note: The WHERE clause is not only used in . SELECT statements, it is also used in UPDATE, DELETE, etc.! Demo Database.
23 mar 2023 · How to Query for Strings in SQL with the WHERE Clause and LIKE Operator. The WHERE clause lets you get only the records that meet a particular condition. The LIKE operator, on the other hand, lets you find a particular pattern in a column. You can combine these two to search for a string or a substring of a string.
12 maj 2024 · In MS SQL, we can utilize the CHARINDEX () function to search for a substring’s position: SELECT * FROM Product. WHERE CHARINDEX('Milk', description) > 0 OR CHARINDEX('Dark', description) > 0; Like POSITION (), CHARINDEX () returns the 1-based index of the search substring or 0 if it isn’t in the string. 7.
Summary: in this tutorial, you will learn how to use the MySQL WHERE clause in the SELECT statement to filter rows from the result set.
