sqlite迁移到mysql脚本的方法

2024-07-24 12:51:17

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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 $line_cache = '';# For speed upprint "SET GLOBAL max_allowed_packet=209715200;/n";#print "SET AUTOCOMMIT=0;/n";while ($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 $name$sub/n"; } elsif ($line =~ /CREATE VIEW ([a-z_0-9]*)(.*)/){ $name = "/`$1/`"; $sub = $2; $line = "DROP VIEW IF EXISTS $name;/nCREATE VIEW $name$sub/n"; } 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";

总结

以上所述是小编给大家介绍的sqlite迁移到mysql脚本的方法，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对错新站长站网站的支持！