sqlite迁移到mysql脚本的方法-华尔子博-奥夏网

废话不多说了，直接给大家贴代码了，具体代码如下所示：

#! /usr/bin/perl

#

# based on https://stackoverflow.com/a/87531/5742651

# usage: sqlite3 .dump database_name.sqlite3 | perl sqlite2mysql.pl | mysql -u root -p $import_database_name

#

# ignore follow lines:

# BEGIN TRANSACTION

# COMMIT

# sqlite_sequence

# CREATE UNIQUE INDEX

# PRAGMA foreign_keys=OFF

# "tablename/field" => `tablename/field`

# booleans 't' and 'f' => 1 and 0

# AUTOINCREMENT => AUTO_INCREMENT

# varchar => varchar(255)

# CREATE TABLE table... => DROP TABLE table; CREATE TABLE table...

# Merge insert sqls into multiple insert to speed up

# INSERT INTO table VALUES('val1');

# INSERT INTO table VALUES('val2'); => INSERT INTO table VALUES('val1'), ('val2'), ('val3');

# INSERT INTO table VALUES('val3');

my $open=0;

my $line_cache = '';

# For speed up

print "SET GLOBAL max_allowed_packet=209715200;n";

#print "SET AUTOCOMMIT=0;n";

while ($line = <>){

if (($line !~ /PRAGMA foreign_keys=OFF/) && ($line !~ /BEGIN TRANSACTION/) && ($line !~ /COMMIT/) && ($line !~ /sqlite_sequence/) && ($line !~ /CREATE UNIQUE INDEX/)){

if ($line =~ /CREATE TABLE "([a-z_0-9]*)"(.*)/){

$name = "`$1`";

$sub = $2;

$sub =~ s/varchar([^(])/varchar(255)$1/g;

$line = "DROP TABLE IF EXISTS $name;nCREATE TABLE $name$subn";

}

elsif ($line =~ /CREATE VIEW ([a-z_0-9]*)(.*)/){

$name = "`$1`";

$sub = $2;

$line = "DROP VIEW IF EXISTS $name;nCREATE VIEW $name$subn";

}

elsif ($line =~ /INSERT INTO "([a-z_]*)" VALUES(.*);/){

if ($open == 0) {

$open = 1;

$line_cache .= "INSERT INTO `$1` VALUES $2";

} else {

$line_cache .= ", $2";

}

next;

}else{

$line =~ s/''/\'/g;

}

if ($open == 1) {

$open = 0;

$line = $line_cache.";n".$line;

$line_cache = '';

}

$line =~ s/"/`/g;

$line =~ s/([^\'])'t'(.)/$1THIS_IS_TRUE$2/g;

$line =~ s/THIS_IS_TRUE/1/g;

$line =~ s/([^\'])'f'(.)/$1THIS_IS_FALSE$2/g;

$line =~ s/THIS_IS_FALSE/0/g;

$line =~ s/AUTOINCREMENT/AUTO_INCREMENT/g;

print $line;

}

#print "SET AUTOCOMMIT=1;n";

本文刊载的所有内容，包括文字、图片、音频、视频、软件、程序、以及网页版式设计等部门来源于互联网，版权均归原作者所有！本网站提供的内容服务于个人学习、研究或欣赏，以及其他非商业性或非盈利性用途，但同时应遵守著作权法及其他相关法律的规定，不得侵犯本网站及相关权利人的合法权利。
联系信息：邮箱aoxolcom@163.com或见网站底部。

THE END