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php Programming Glossary: union

How can an SQL query return data from multiple tables

http://stackoverflow.com/questions/12475850/how-can-an-sql-query-return-data-from-multiple-tables

types of methods are there to do this what are joins and unions and how are they different from one another When should I use.. See the wikipedia entry for additional info How to use a union query Left and Right Outer Joins this stackOverflow answer is.. at it differently this is a great excuse to show how a union query will work. We know that the following will return all..

List of Big-O for PHP functions

http://stackoverflow.com/questions/2473989/list-of-big-o-for-php-functions

is much faster than in_array and array_search union is a bit faster than array_merge and looks nicer . But it does.. O array_i i 1 doesn't need to iterate over the first array union O n where n is size of the 2nd array ie array_first array_second..

Select MYSQL rows but rows into columns and column into rows

http://stackoverflow.com/questions/3288014/select-mysql-rows-but-rows-into-columns-and-column-into-rows

of naming the table grades General Idea To create a union of different queries and execute it. Since you need actual data.. need actual data as column headers the first part of the union will look like SELECT 'id' '1' '2' .... That query alone will.. to have 0 rows by adding LIMIT 0 0 . Our first row of the union will contain 'Name' as well as all the data from Name column..

UNION syntax in Cakephp

http://stackoverflow.com/questions/3536107/union-syntax-in-cakephp

t2.id RIGHT JOIN t3 ON t2.id t3.id php sql mysql cakephp union share improve this question Too many coders try to limit..

Finding free blocks of time in mysql and php?

http://stackoverflow.com/questions/11262260/finding-free-blocks-of-time-in-mysql-and-php

0 as date '08 00 00' as start_hour '08 00 00' as end_hour UNION SELECT date start_hour end_hour FROM table AS a JOIN SELECT.. table AS a JOIN SELECT date start_hour end_hour FROM table UNION SELECT 0 '21 00 00' as start_hour '22 00 00' as end_hour AS..

Why does MySQL report a syntax error on FULL OUTER JOIN? [closed]

http://stackoverflow.com/questions/2384298/why-does-mysql-report-a-syntax-error-on-full-outer-join

JOIN Syntax You can emulate FULL OUTER JOIN using UNION from MySQL 4.0.0 on with two tables t1 t2 SELECT FROM t1 LEFT.. tables t1 t2 SELECT FROM t1 LEFT JOIN t2 ON t1.id t2.id UNION SELECT FROM t1 RIGHT JOIN t2 ON t1.id t2.id with three tables.. t1 LEFT JOIN t2 ON t1.id t2.id LEFT JOIN t3 ON t2.id t3.id UNION SELECT FROM t1 RIGHT JOIN t2 ON t1.id t2.id LEFT JOIN t3 ON..

Turn database result into array

http://stackoverflow.com/questions/2794638/turn-database-result-into-array

Closure WHERE d 5 the intended parent of your new node UNION ALL SELECT LAST_INSERT_ID LAST_INSERT_ID 0 share improve this..

Select MYSQL rows but rows into columns and column into rows

http://stackoverflow.com/questions/3288014/select-mysql-rows-but-rows-into-columns-and-column-into-rows

a new query and execute it SET @query CONCAT ' ' @header ' UNION ' @line1 ' UNION ' @line2 ' ' PREPARE my_query FROM @query EXECUTE.. it SET @query CONCAT ' ' @header ' UNION ' @line1 ' UNION ' @line2 ' ' PREPARE my_query FROM @query EXECUTE my_query Entire.. @a 1 ' 1 ' FROM grades SET @query CONCAT ' ' @header ' UNION ' @line1 ' UNION ' @line2 ' ' PREPARE my_query FROM @query EXECUTE..

UNION syntax in Cakephp

http://stackoverflow.com/questions/3536107/union-syntax-in-cakephp

syntax in Cakephp Anyone knows a good way to make UNION query.. syntax in Cakephp Anyone knows a good way to make UNION query in CakePHP I would like to avoid using this query . With.. tables t1 t2 SELECT FROM t1 LEFT JOIN t2 ON t1.id t2.id UNION SELECT FROM t1 RIGHT JOIN t2 ON t1.id t2.id With three tables..

When *not* to use prepared statements?

http://stackoverflow.com/questions/535464/when-not-to-use-prepared-statements

the lot is simply three such selects joined together with UNION ALL s. Each page hit executes at most one statement and executes..

Are mysql_real_escape_string() and mysql_escape_string() sufficient for app security?

http://stackoverflow.com/questions/5414731/are-mysql-real-escape-string-and-mysql-escape-string-sufficient-for-app-secu

exploits php sql_exploits.php url 'http www.reddit.com' UNION SELECT name FROM CachedDomains Generated SQL SELECT url FROM.. GrabbedURLs WHERE url LIKE 'http reddit.com ' LIMIT 1 UNION SELECT name FROM CachedDomains Returns An entirely unexpected..