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This Is Your Brain On Informatics: MariaDB

339 bytes added, 01:04, 25 October 2013
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{| class = "wikitable"
|- align = "center"
! colspan = "23" | Common Commands in SQL
|-
! Command* !! Syntax !! Description
|-
| `[table]` || || Syntax for indicating a table
|-
| USE [database] || || Selects database for manipulation and analysis
|-
| SELECT || || Selects columns from a database for analysis
|-
| FROM || || Denotes which table SELECT pulls the columns from (e.g. SELECT [col1],[col2] FROM `[table]`
|-
| WHERE || || Limits the available values SELECT can pull from each column based on a logical statement (e.g. WHERE [col1] < 10)
|-
| AS [var] || || Sets an output to a variable
|- align = "center"
! colspan ="23" | Boolean Operators
|- align = "center"
| colspan ="23" | AND
|- align = "center"
| colspan ="23" | OR
|- align = "center"
| colspan ="23" | NOT
|-
| CREATE TABLE `[table]` || Creates a table of the given name with the properly input variable (see below)
|-
| BIGINT || || 64-bit integer
|-
| INT || || 32-bit integer
|-
| UNSIGNED || || only allows positive integers or float values, always assigned after BIGINT or INT value
|-
| AUTO_INCREMENT || || Automatically adds +1 to an entry for a column for each successive entry
|-
| PRIMARY KEY || || Indicates which variable will differentiate each data entry
|-
| VARCHAR(#) || || Assigns a character array variable of length #
|-
| CHAR || || Assigns a character variable (allows ONLY 1 character)
|-
| DATE || || Assigns a date variable of the form 00-00-0000
|-
| AVG() || || Gives an average of the values in the indicated column
|-
| MAX() || || Gives the maximum of the values in the indicated column
|-
| MIN() || || Gives the minimum of the values in the indicated column
|-
| LIMIT # || || Limits to the top # number of entries (not necessarily by rank)
|-
| CREATE TEMPORARY TABLE `[table]` || || Creates a temporary table of the given name|-| INTO || INSERT INTO table_name<br />VALUES (value1,value2,value3,...);<br />INSERT INTO table_name (column1,column2,column3,...)<br />VALUES (value1,value2,value3,...); -- specifies the columns the values go into || Inserts new data entries into the specified columns
|-
 
|}
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