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7 cze 2016 · SELECT * FROM table WHERE id IN (1,2,3,4); I use it for usergroups and a user can be in more than one group. but it seems that when a record has multiple id like 1 and 3, mySQL does not return that row. Is there any way to get that row too?
The WHERE clause allows you to specify a search condition for the rows returned by a query. The following shows the syntax of the WHERE clause: SELECT . select_list. FROM . table_name. WHERE . search_condition; Code language: SQL (Structured Query Language) (sql)
The MySQL IN Operator. The IN operator allows you to specify multiple values in a . WHERE clause. The IN operator is a shorthand for multiple . OR conditions. IN Syntax. SELECT column_name (s) FROM table_name. WHERE column_name IN (value1, value2, ...); or: SELECT column_name (s) FROM table_name. WHERE column_name IN (SELECT STATEMENT);
26 sty 2024 · The WHERE clause is used for filtering records that match a specified condition. It is essential for narrowing down results and improving query performance by excluding unwanted data before any grouping operation. SELECT column1, column2. FROM table. WHERE condition; Example: SELECT name, age. FROM users. WHERE age >= 18;
MySQL is a widely used relational database management system (RDBMS). MySQL is free and open-source. MySQL is ideal for both small and large applications. Start learning MySQL now ». Examples in Each Chapter. With our online MySQL editor, you can edit the SQL statements, and click on a button to view the result.
The SELECT statement is used to pull information from a table. The general form of the statement is: SELECT what_to_select FROM which_table WHERE conditions_to_satisfy; what_to_select indicates what you want to see.
To find out what tables the default database contains (for example, when you are not sure about the name of a table), use this statement: mysql> SHOW TABLES; +---------------------+. | Tables_in_menagerie |. +---------------------+. | event |. | pet |. +---------------------+.
