SQL: Two select statements in one query - Stack Overflow
I want to select information from two SQL tables within one query, the information is unrelated though, so no potential joints exist. An example could be the following setup. tblMadrid … tblBarcelona …
Does MySQL "SELECT LIMIT 1" with multiple records select first...
I've searched and searched and can't find an answer to this question, I'm probably asking it in the wrong way. I am querying an employee database.
Getting Started | Select2 - The jQuery replacement for select boxes
Select2 gives you a customizable select box with support for searching, tagging, remote data sets, infinite scrolling, and many other highly used options.
MySQL :: MySQL 5.7 Reference Manual :: 8.2.1.2 Range Optimization
SELECT * FROM t1 WHERE key_col LIKE 'ab%' OR key_col BETWEEN 'bar' AND 'foo'; Some nonconstant values may be converted to constants during the optimizer constant propagation phase. MySQL tries to extract range conditions from the WHERE clause for each of the possible indexes.
Retrieving Records from Multiple Tables | MySQL SQL Syntax and Use
SELECT selection_list # What columns to select FROM table_list # Where to select rows from
SQL SELECT without FROM should read VALUES without INSERT
Every SELECT needs a FROM clause according to the SQL standard. VALUES is like SELECT without FROM.
SQL: SELECT LIMIT Statement
This SQL SELECT LIMIT example would select the first 5 records from the contacts table where the website is 'TechOnTheNet.com'. Note that the results are sorted by contact_id in descending order so this means that the 5 largest contact_id values will be returned by the SELECT LIMIT statement.
Полезные трюки PostgreSQL / Хабр
Например, select array(select id from important_user_table); Пример 3. Для схожих целей можно использовать еще один трюк.
MySQL select from where multiple conditions
Maybe one of the most used MySQL commands is SELECT, that is the way to stract the information from the database, but of course one does not need all the info inside a database, therefore one should limit the info