SQL Quick Reference
SQL Statement
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Syntax
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AND / OR
|
SELECT column_name(s)
FROM table_name WHERE condition AND|OR condition |
ALTER TABLE
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ALTER TABLE table_name
ADD column_name datatype
or
ALTER TABLE table_name
DROP COLUMN column_name |
AS (alias)
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SELECT column_name AS column_alias
FROM table_name
or
SELECT column_name
FROM table_name AS table_alias |
BETWEEN
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SELECT column_name(s)
FROM table_name WHERE column_name BETWEEN value1 AND value2 |
CREATE DATABASE
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CREATE DATABASE database_name
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CREATE TABLE
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CREATE TABLE table_name
( column_name1 data_type, column_name2 data_type, column_name2 data_type, ... ) |
CREATE INDEX
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CREATE INDEX index_name
ON table_name (column_name)
or
CREATE UNIQUE INDEX index_name
ON table_name (column_name) |
CREATE VIEW
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CREATE VIEW view_name AS
SELECT column_name(s) FROM table_name WHERE condition |
DELETE
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DELETE FROM table_name
WHERE some_column=some_value
or
DELETE FROM table_name
(Note: Deletes the entire table!!)
DELETE * FROM table_name
(Note: Deletes the entire table!!) |
DROP DATABASE
|
DROP DATABASE database_name
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DROP INDEX
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DROP INDEX table_name.index_name (SQL Server)
DROP INDEX index_name ON table_name (MS Access) DROP INDEX index_name (DB2/Oracle) ALTER TABLE table_name DROP INDEX index_name (MySQL) |
DROP TABLE
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DROP TABLE table_name
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GROUP BY
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SELECT column_name, aggregate_function(column_name)
FROM table_name WHERE column_name operator value GROUP BY column_name |
HAVING
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SELECT column_name, aggregate_function(column_name)
FROM table_name WHERE column_name operator value GROUP BY column_name HAVING aggregate_function(column_name) operator value |
IN
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SELECT column_name(s)
FROM table_name WHERE column_name IN (value1,value2,..) |
INSERT INTO
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INSERT INTO table_name
VALUES (value1, value2, value3,....)
or
INSERT INTO table_name
(column1, column2, column3,...) VALUES (value1, value2, value3,....) |
INNER JOIN
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SELECT column_name(s)
FROM table_name1 INNER JOIN table_name2 ON table_name1.column_name=table_name2.column_name |
LEFT JOIN
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SELECT column_name(s)
FROM table_name1 LEFT JOIN table_name2 ON table_name1.column_name=table_name2.column_name |
RIGHT JOIN
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SELECT column_name(s)
FROM table_name1 RIGHT JOIN table_name2 ON table_name1.column_name=table_name2.column_name |
FULL JOIN
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SELECT column_name(s)
FROM table_name1 FULL JOIN table_name2 ON table_name1.column_name=table_name2.column_name |
LIKE
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SELECT column_name(s)
FROM table_name WHERE column_name LIKE pattern |
ORDER BY
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SELECT column_name(s)
FROM table_name ORDER BY column_name [ASC|DESC] |
SELECT
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SELECT column_name(s)
FROM table_name |
SELECT *
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SELECT *
FROM table_name |
SELECT DISTINCT
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SELECT DISTINCT column_name(s)
FROM table_name |
SELECT INTO
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SELECT *
INTO new_table_name [IN externaldatabase] FROM old_table_name
or
SELECT column_name(s)
INTO new_table_name [IN externaldatabase] FROM old_table_name |
SELECT TOP
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SELECT TOP number|percent column_name(s)
FROM table_name |
TRUNCATE TABLE
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TRUNCATE TABLE table_name
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UNION
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SELECT column_name(s) FROM table_name1
UNION SELECT column_name(s) FROM table_name2 |
UNION ALL
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SELECT column_name(s) FROM table_name1
UNION ALL SELECT column_name(s) FROM table_name2 |
UPDATE
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UPDATE table_name
SET column1=value, column2=value,... WHERE some_column=some_value |
WHERE
|
SELECT column_name(s)
FROM table_name WHERE column_name operator value |
You can also this quick ref Query from this link..
