How to run a single query in mySQL combining two queries using php?

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In my mySQL Database i have two tables.

t_region and t_city, where i save the cities and the regions they belong. The structure is very simple. Here is an example:

The table t_region

and the table t_city

To get a list of cities i run the query:

SELECT * FROM %st_city ', DB_TABLE_PREFIX

and save the results in an array.

The same for regions. The query is:

SELECT * FROM %st_region ', DB_TABLE_PREFIX

What i want is to create a single query in php, so i can get a list of cities names and the regions they belong, so the results will be something like that:

Los Angeles(California), Miami(Florida) etc

That's a simple JOIN:

SELECT c.*, r.s_name
FROM  t_region r
INNER JOIN t_city c ON c.fk_i_region = r.pk_i_id

MySQL UNION: Combining Results of Two or More Queries, into a single result set. The following illustrates the syntax of the UNION operator: SELECT column_list UNION [DISTINCT | ALL] SELECT column_list UNION [DISTINCT | ALL] SELECT column_list This function of PHP MySQLi is to run either single or multiple MySQL queries. If multiple queries need to be executed then the queries should be separated by a semicolon. Syntax: mysqli::multi_query(query_string); We are going to see how to execute multiple select queries with mysqli_multi_select() functionExample #1: multiple select with mysqli_multi_query() Code:

Try with inner join both tables

SELECT t_city.s_name, t_region.s_name
FROM t_city
INNER JOIN t_region ON t_city.fk_i_region=t_region.pk_i_id;

Multiple Statements - Manual, How do I combine two SQL queries in one result without a union? To combine result set of two or more queries using the UNION operator, these are the basic rules that you must follow: First, the number and the orders of columns that appear in all SELECT statements must be the same. Second, the data types of columns must be the same or compatible.

You need a subquery, for one field is more fast than use join

select *,(select s_name from t_region where t_region.pk_i_id=t_city.fk_i_region) as region from t_city

Combining SQL queries without JOIN or UNION, MySQL UNION operator allows you to combine two or more result sets of queries into a single result set. The following illustrates the syntax of the UNION operator: SELECT column_list UNION [DISTINCT | ALL] SELECT column_list UNION [DISTINCT | ALL] SELECT column_list Definition and Usage. The multi_query() / mysqli_multi_query() function performs one or more queries against the database. The queries are separated with a semicolon.

PHP mysqli multi_query() Function, Perform multiple queries against the database: <?php $mysqli Execute multi query if ($mysqli Specifies one or more queries, separated with semicolon  The multiple_query function isn’t available with the mysql functions, only with the mysqli functions. Sending queries can be less secure than sending one query. Whenever you use data from an outside source, be sure you validate the outside data thoroughly.

Combine two queries in php, newbie please help - PHP, MySQL optionally allows having multiple statements in one statement string. Multiple statements or multi queries must be executed with mysqli_multi_query(). Here's a solution that doesn't use UNION or subqueries. [code]SELECT SUM(date11='08/01/2015'), SUM(date11='08/01/2015' AND VchType IS NOT NULL), SUM(IF(VchType=&#039

How to run multiple queries in mysql without using join keyword , Hi, i'm new to php and mysql so any helps will be greatly appreciated. $​connection->query($sql)) { die ('There was an error running query[' . Your second query is overwriting the first one because you use the same  This is a great solution for combining queries to produce a single result, and very elegant! I will definitely be using this with frequency. Here's a question, though: suppose the number of sub

Comments
  • Use a SQL JOIN, which should be explained in any SQL tutorial.