SQLite是遵循一套獨特的稱為語法的規則和準則。本教學提供了一個快速入門SQLite所有基本的SQLite語法。

大小寫敏感性

重要的一點要注意的是，SQLite是不區分大小寫的，但也有一些命令，這些命令是大小寫敏感的像GLOB，glob 在SQLite的語句有不同的含義。 

注釋

SQLite的注釋是額外注意，可以添加SQLite代碼，以增加其可讀性，他們可以出現在任何空白可以發生，包括裡麵的表達式和其他SQL語句的中間，但他們不能嵌套。

SQL注釋開始連續兩個“ - ”字符（ASCII0X2D）和擴展，包括下一個換行符（0X0A ASCII），直到輸入的結尾，以先到者為準。

還可以使用C風格的注釋，“/ *”開始，擴展到包括未來的“*/”字符對，直到輸入的結尾，以先到者為準。 C風格的注釋可以跨越多行。

sqlite>.help -- This is a single line comment

SQLite 語句

所有SQLite語句開頭可以以任何關鍵字，如SELECT，INSERT，UPDATE，DELETE，ALTER，DROP等，所有的語句用分號（;)結束。

SQLite ANALYZE 語句:

ANALYZE;
or
ANALYZE database_name;
or
ANALYZE database_name.table_name;

SQLite AND/OR Clause:

SELECT column1, column2....columnN
FROM   table_name
WHERE  CONDITION-1 {AND|OR} CONDITION-2;

SQLite ALTER TABLE 語句:

ALTER TABLE table_name ADD COLUMN column_def...;

SQLite ALTER TABLE 語句(Rename):

ALTER TABLE table_name RENAME TO new_table_name;

SQLite ATTACH DATABASE 語句:

ATTACH DATABASE 'DatabaseName' As 'Alias-Name';

SQLite BEGIN TRANSACTION 語句:

BEGIN;
or
BEGIN EXCLUSIVE TRANSACTION;

SQLite BETWEEN 子句:

SELECT column1, column2....columnN
FROM   table_name
WHERE  column_name BETWEEN val-1 AND val-2;

SQLite COMMIT 語句:

COMMIT;

SQLite CREATE INDEX 語句:

CREATE INDEX index_name
ON table_name ( column_name COLLATE NOCASE );

SQLite CREATE UNIQUE INDEX 語句:

CREATE UNIQUE INDEX index_name
ON table_name ( column1, column2,...columnN);

SQLite CREATE TABLE 語句:

CREATE TABLE table_name(
   column1 datatype,
   column2 datatype,
   column3 datatype,
   .....
   columnN datatype,
   PRIMARY KEY( one or more columns )
);

SQLite CREATE TRIGGER 語句:

CREATE TRIGGER database_name.trigger_name 
BEFORE INSERT ON table_name FOR EACH ROW
BEGIN 
   stmt1; 
   stmt2;
   ....
END;

SQLite CREATE VIEW 語句:

CREATE VIEW database_name.view_name  AS
SELECT statement....;

SQLite CREATE VIRTUAL TABLE 語句:

CREATE VIRTUAL TABLE database_name.table_name USING weblog( access.log );
or
CREATE VIRTUAL TABLE database_name.table_name USING fts3( );

SQLite COMMIT TRANSACTION 語句:

COMMIT;

SQLite COUNT 子句:

SELECT COUNT(column_name)
FROM   table_name
WHERE  CONDITION;

SQLite DELETE 語句:

DELETE FROM table_name
WHERE  {CONDITION};

SQLite DETACH DATABASE 語句:

DETACH DATABASE 'Alias-Name';

SQLite DISTINCT 子句:

SELECT DISTINCT column1, column2....columnN
FROM   table_name;

SQLite DROP INDEX 語句:

DROP INDEX database_name.index_name;

SQLite DROP TABLE 語句:

DROP TABLE database_name.table_name;

SQLite DROP VIEW 語句:

DROP INDEX database_name.view_name;

SQLite DROP TRIGGER 語句:

DROP INDEX database_name.trigger_name;

SQLite EXISTS 子句:

SELECT column1, column2....columnN
FROM   table_name
WHERE  column_name EXISTS (SELECT * FROM   table_name );

SQLite EXPLAIN 語句:

EXPLAIN INSERT statement...;
or 
EXPLAIN QUERY PLAN SELECT statement...;

SQLite GLOB 子句:

SELECT column1, column2....columnN
FROM   table_name
WHERE  column_name GLOB { PATTERN };

SQLite GROUP BY 子句:

SELECT SUM(column_name)
FROM   table_name
WHERE  CONDITION
GROUP BY column_name;

SQLite HAVING 子句:

SELECT SUM(column_name)
FROM   table_name
WHERE  CONDITION
GROUP BY column_name
HAVING (arithematic function condition);

SQLite INSERT INTO 語句:

INSERT INTO table_name( column1, column2....columnN)
VALUES ( value1, value2....valueN);

SQLite IN 子句:

SELECT column1, column2....columnN
FROM   table_name
WHERE  column_name IN (val-1, val-2,...val-N);

SQLite Like 子句:

SELECT column1, column2....columnN
FROM   table_name
WHERE  column_name LIKE { PATTERN };

SQLite NOT IN 子句:

SELECT column1, column2....columnN
FROM   table_name
WHERE  column_name NOT IN (val-1, val-2,...val-N);

SQLite ORDER BY 子句:

SELECT column1, column2....columnN
FROM   table_name
WHERE  CONDITION
ORDER BY column_name {ASC|DESC};

SQLite PRAGMA 語句:

PRAGMA pragma_name;

For example:

PRAGMA page_size;
PRAGMA cache_size = 1024;
PRAGMA table_info(table_name);

SQLite RELEASE SAVEPOINT 語句:

RELEASE saveyiibai_name;

SQLite REINDEX 語句:

REINDEX collation_name;
REINDEX database_name.index_name;
REINDEX database_name.table_name;

SQLite ROLLBACK 語句:

ROLLBACK;
or
ROLLBACK TO SAVEPOINT saveyiibai_name;

SQLite SAVEPOINT 語句:

SAVEPOINT saveyiibai_name;

SQLite SELECT 語句:

SELECT column1, column2....columnN
FROM   table_name;

SQLite UPDATE 語句:

UPDATE table_name
SET column1 = value1, column2 = value2....columnN=valueN
[ WHERE  CONDITION ];

SQLite VACUUM 語句:

VACUUM;

SQLite WHERE 子句:

SELECT column1, column2....columnN
FROM   table_name
WHERE  CONDITION;