SQLite 语法

语法是一组独特的规则和指南。以下是SQLite的语法列表。

大小写敏感性：

• SQLite对大小写不敏感，但有一些命令对大小写敏感。
• 例如，在SQLite语句中，GLOB和glob具有不同的意义。

注释：

• 注释用于增加SQLite代码的可读性。
• 注释不能嵌套。
• 注释以两个连续的”-“字符开头。
• 有时会用 /* 开始并一直延伸到下一个匹配的 */ 字符对。

SQLite语句

所有的SQLite语句都以SELECT、INSERT、UPDATE、DELETE、ALTER、DROP等关键字之一开头。所有的语句都以分号 (;) 结束。

SQLite ANALYZE语句

语法：

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

SQLite AND/OR子句

语法:

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

SQLite ALTER TABLE语句

语法：

ALTER TABLE table_name ADD COLUMN column_def...; 

SQLite ALTER TABLE 语句（重命名）

语法：

ALTER TABLE table_name RENAME TO new_table_name; 

SQLite ATTACH DATABASE 语句

语法：

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

SQLite BEGIN TRANSACTION 语句

语法:

BEGIN;
or
BEGIN EXCLUSIVE TRANSACTION;

SQLite BETWEEN条件

语法：

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

SQLi技术 CREATE INDEX 语句

语法：

CREATE INDEX index_name
ON table_name ( column_name COLLATE NOCASE ); 

SQLite CREATE UNIQUE INDEX 语句

语法：

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

SQLite创建表语句

语法:

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

SQLite创建触发器语句

语法：

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

SQLite CREATE VIEW语句

语法：

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

SQLite CREATE VIRTUAL TABLE 语句

语法：

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

SQLite COMMIT TRANSACTION 语句

语法:

COMMIT; 

SQLite COUNT子句

语法：

 SELECT COUNT(column_name)
FROM   table_name
WHERE  CONDITION;  

SQLite DELETE语句

语法：

DELETE FROM table_name
WHERE  {CONDITION}; 

SQLite DETACH DATABASE 语句

语法:

DETACH DATABASE 'Alias-Name';

SQLite DISTINCT Clause

语法：

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

SQLite DROP INDEX语句

语法：

DROP INDEX database_name.index_name;

SQLite DROP TABLE 语句

语法：

DROP TABLE database_name.table_name; 

SQLite DROP VIEW 语句

语法：

DROP INDEX database_name.view_name;

SQLite DROP TRIGGER语句

语法：

DROP INDEX database_name.trigger_name;

SQLite EXISTS子句

语法：

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

SQLite EXPLAIN语句

语法：

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

SQLite GLOB子句

语法：

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

SQLite GROUP BY 子句

语法：

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

SQLite的HAVING子句

语法：

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

SQLite INSERT INTO 语句

语法：

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

SQLite IN子句

语法：

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

SQLite Like子句

语法：

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

SQLite NOT IN子句

语法：

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

SQLite ORDER BY 子句

语法：

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

SQLite PRAGMA语句

语法：

PRAGMA pragma_name;

例如：

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

SQLite RELEASE SAVEPOINT 语句

语法：

RELEASE savepoint_name;

SQLite REINDEX 语句

语法：

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

SQLite ROLLBACK Statement

语法：

ROLLBACK;
or
ROLLBACK TO SAVEPOINT savepoint_name;

SQLite SAVEPOINT语句

语法：

SAVEPOINT savepoint_name;

SQLite SELECT语句

语法：

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

SQLite UPDATE语句

语法:

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

SQLite VACUUM语句

语法：

VACUUM;
SQLite WHERE Clause:
SELECT column1, column2....columnN
FROM   table_name
WHERE  CONDITION;