தமிழில் SQL - பாகம் 14

SQL Server பயன்பாட்டை எவ்வாறு நிறுவுவது என திரு. G. ராஜாராமன் சவுதி அரேபியா கேட்டிருந்தார். அவருக்காக இணையத்தில் தேடியபோது ஒரு அருமையான தளமுகவரி கிடைத்தது அதை இங்கே பகிர்கிறேன்.

ஒவ்வொரு திரையாகப் படம் பிடித்து அருமையாக விளக்கியிருக்கிறார்கள்.
http://www.functionx.com/sqlserver/Lesson01.htm

அவர் கேட்டதற்கு இணங்கி அப்படி ஒரு பதிவைத் தமிழில் வெளியிட நினைத்தேன். அழகான செயல்முறை விளக்கத்துடன் ஆங்கிலத்தில் இருந்தாலும் எளிதாகப் புரியும் வண்ணம் இருந்ததால் அதன் சுட்டியை இங்கே பகிர்ந்துவிட்டேன்.

மேலும் SQL க்கான Syntax அட்டவணையை http://www.w3schools.com/sql/sql_quickref.asp ல் கண்டேன். அதனைக் கீழே தந்திருக்கிறேன்.

நன்றி : http://www.w3schools.com

இந்த SQL Syntaxகளை நன்றாகப் படித்து மனதில் வைத்துக்கொள்ளவும்.

AND / OR	SELECT column_name(s) FROM table_name WHERE condition AND|OR condition
ALTER TABLE	ALTER TABLE table_name ADD column_name datatypeor ALTER TABLE table_name DROP COLUMN column_name
AS (alias)	SELECT column_name AS column_alias FROM table_nameor SELECT column_name FROM table_name AS table_alias
BETWEEN	SELECT column_name(s) FROM table_name WHERE column_name BETWEEN value1 AND value2
CREATE DATABASE	CREATE DATABASE database_name
CREATE TABLE	CREATE TABLE table_name ( column_name1 data_type, column_name2 data_type, column_name2 data_type, ... )
CREATE INDEX	CREATE INDEX index_name ON table_name (column_name)or CREATE UNIQUE INDEX index_name ON table_name (column_name)
CREATE VIEW	CREATE VIEW view_name AS SELECT column_name(s) FROM table_name WHERE condition
DELETE	DELETE FROM table_name WHERE some_column=some_valueor DELETE FROM table_name (Note: Deletes the entire table!!) DELETE * FROM table_name (Note: Deletes the entire table!!)
DROP DATABASE	DROP DATABASE database_name
DROP INDEX	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	DROP TABLE table_name
GROUP BY	SELECT column_name, aggregate_function(column_name) FROM table_name WHERE column_name operator value GROUP BY column_name
HAVING	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	SELECT column_name(s) FROM table_name WHERE column_name IN (value1,value2,..)
INSERT INTO	INSERT INTO table_name VALUES (value1, value2, value3,....)or INSERT INTO table_name (column1, column2, column3,...) VALUES (value1, value2, value3,....)
INNER JOIN	SELECT column_name(s) FROM table_name1 INNER JOIN table_name2 ON table_name1.column_name=table_name2.column_name
LEFT JOIN	SELECT column_name(s) FROM table_name1 LEFT JOIN table_name2 ON table_name1.column_name=table_name2.column_name
RIGHT JOIN	SELECT column_name(s) FROM table_name1 RIGHT JOIN table_name2 ON table_name1.column_name=table_name2.column_name
FULL JOIN	SELECT column_name(s) FROM table_name1 FULL JOIN table_name2 ON table_name1.column_name=table_name2.column_name
LIKE	SELECT column_name(s) FROM table_name WHERE column_name LIKE pattern
ORDER BY	SELECT column_name(s) FROM table_name ORDER BY column_name [ASC|DESC]
SELECT	SELECT column_name(s) FROM table_name
SELECT *	SELECT * FROM table_name
SELECT DISTINCT	SELECT DISTINCT column_name(s) FROM table_name
SELECT INTO	SELECT * INTO new_table_name [IN externaldatabase] FROM old_table_nameor SELECT column_name(s) INTO new_table_name [IN externaldatabase] FROM old_table_name
SELECT TOP	SELECT TOP number|percent column_name(s) FROM table_name
TRUNCATE TABLE	TRUNCATE TABLE table_name
UNION	SELECT column_name(s) FROM table_name1 UNION SELECT column_name(s) FROM table_name2
UNION ALL	SELECT column_name(s) FROM table_name1 UNION ALL SELECT column_name(s) FROM table_name2
UPDATE	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

Select Statement
SELECT "column_name" FROM "table_name"

Distinct
SELECT DISTINCT "column_name"
FROM "table_name"

Where
SELECT "column_name"
FROM "table_name"
WHERE "condition"

And/Or
SELECT "column_name"
FROM "table_name"
WHERE "simple condition"
{[AND|OR] "simple condition"}+

In
SELECT "column_name"
FROM "table_name"
WHERE "column_name" IN ('value1', 'value2', ...)

Between
SELECT "column_name"
FROM "table_name"
WHERE "column_name" BETWEEN 'value1' AND 'value2'

Like
SELECT "column_name"
FROM "table_name"
WHERE "column_name" LIKE {PATTERN}

Order By
SELECT "column_name"
FROM "table_name"
[WHERE "condition"]
ORDER BY "column_name" [ASC, DESC]

Count
SELECT COUNT("column_name")
FROM "table_name"

Group By
SELECT "column_name1", SUM("column_name2")
FROM "table_name"
GROUP BY "column_name1"

Having
SELECT "column_name1", SUM("column_name2")
FROM "table_name"
GROUP BY "column_name1"
HAVING (arithematic function condition)

Create Table Statement
CREATE TABLE "table_name"
("column 1" "data_type_for_column_1",
"column 2" "data_type_for_column_2",
... )

Drop Table Statement
DROP TABLE "table_name"

Truncate Table Statement
TRUNCATE TABLE "table_name"

Insert Into Statement
INSERT INTO "table_name" ("column1", "column2", ...)
VALUES ("value1", "value2", ...)

Update Statement
UPDATE "table_name"
SET "column_1" = [new value]
WHERE {condition}

Delete From Statement
DELETE FROM "table_name"
WHERE {condition}



நன்றி :இணையம்