SQLite安装及常用语句

SQLite简介

SQLite 是一个软件库,实现了自给自足的、无服务器的、零配置的、事务性的 SQL 数据库引擎。SQLite 是在世界上最广泛部署的 SQL 数据库引擎。SQLite 源代码不受版权限制。

SQLite安装

  1. 官网下载 SQLite Download Page

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  1. 新建一个sqlite文件夹,将下载的两个压缩包解压至D:/sqlite,配置环境变量。

SQLite安装及常用语句_第2张图片
  1. 配置好环境变量后,打开cmd,输入sqlite3,校验环境变量是否配置成功

SQLite安装及常用语句_第3张图片

SQLite语法

SQLite ANALYZE 语句:

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

SQLite AND/OR 子句:

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

SQLite ALTER TABLE 语句:

ALTER TABLE table_name ADD COLUMN column_def...;

SQLite ALTER TABLE 语句(Rename):

ALTER TABLE table_name RENAME TO new_table_name;

SQLite ATTACH DATABASE 语句:

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

SQLite BEGIN TRANSACTION 语句:

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 语句:

COMMIT;

SQLite CREATE INDEX 语句:

CREATE INDEX index_name
ON table_name ( column_name COLLATE NOCASE );

SQLite CREATE UNIQUE INDEX 语句:

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

SQLite CREATE TABLE 语句:

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

SQLite CREATE TRIGGER 语句:

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

SQLite CREATE VIEW 语句:

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

SQLite CREATE VIRTUAL TABLE 语句:

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

SQLite COMMIT TRANSACTION 语句:

COMMIT;

SQLite COUNT 子句:

SELECT COUNT(column_name)
FROM   table_name
WHERE  CONDITION;

SQLite DELETE 语句:

DELETE FROM table_name
WHERE  {CONDITION};

SQLite DETACH DATABASE 语句:

DETACH DATABASE 'Alias-Name';

SQLite DISTINCT 子句:

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

SQLite DROP INDEX 语句:

DROP INDEX database_name.index_name;

SQLite DROP TABLE 语句:

DROP TABLE database_name.table_name;

SQLite DROP VIEW 语句:

DROP VIEW view_name;

SQLite DROP TRIGGER 语句:

DROP TRIGGER trigger_name

SQLite EXISTS 子句:

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

SQLite EXPLAIN 语句:

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 语句:

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 语句:

PRAGMA pragma_name;
For example:
PRAGMA page_size;
PRAGMA cache_size = 1024;
PRAGMA table_info(table_name);

SQLite RELEASE SAVEPOINT 语句:

RELEASE savepoint_name;

SQLite REINDEX 语句:

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

SQLite ROLLBACK 语句:

ROLLBACK;
or
ROLLBACK TO SAVEPOINT savepoint_name;

SQLite SAVEPOINT 语句:

SAVEPOINT savepoint_name;

SQLite SELECT 语句:

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

SQLite UPDATE 语句:

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

SQLite VACUUM 语句:

VACUUM;

SQLite WHERE 子句:

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

后续更新sqlite-python。。。

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