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    sqlite如何迁移到mysql脚本[ mysql数据库 ]

    mysql数据库 时间:2024-11-29 09:50:58

    作者:文/会员上传

    简介:

    ,具体代码如下所示:#!/usr/bin/perl##basedonhttps://stackoverflow.com/a/87531/5742651#usage:sqlite3.dumpdatabase_name.sqlite3|perlsqlite2mysql.pl|mysql-uroot-p$impo

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    ,具体代码如下所示:

    #!/usr/bin/perl##basedonhttps://stackoverflow.com/a/87531/5742651#usage:sqlite3.dumpdatabase_name.sqlite3|perlsqlite2mysql.pl|mysql-uroot-p$import_database_name##ignorefollowlines:#BEGINTRANSACTION#COMMIT#sqlite_sequence#CREATEUNIQUEINDEX#PRAGMAforeign_keys=OFF#"tablename/field"=>`tablename/field`#booleans't'and'f'=>1and0#AUTOINCREMENT=>AUTO_INCREMENT#varchar=>varchar(255)#CREATETABLEtable...=>DROPTABLEtable;CREATETABLEtable...#Mergeinsertsqlsintomultipleinserttospeedup#INSERTINTOtableVALUES('val1');#INSERTINTOtableVALUES('val2');=>INSERTINTOtableVALUES('val1'),('val2'),('val3');#INSERTINTOtableVALUES('val3');my$open=0;my$line_cache='';#Forspeedupprint"SETGLOBALmax_allowed_packet=209715200;\n";#print"SETAUTOCOMMIT=0;\n";while($line=<>){if(($line!~/PRAGMAforeign_keys=OFF/)&&($line!~/BEGINTRANSACTION/)&&($line!~/COMMIT/)&&($line!~/sqlite_sequence/)&&($line!~/CREATEUNIQUEINDEX/)){if($line=~/CREATETABLE\"([a-z_0-9]*)\"(.*)/){$name="\`$1\`";$sub=$2;$sub=~s/varchar([^(])/varchar(255)$1/g;$line="DROPTABLEIFEXISTS$name;\nCREATETABLE$name$sub\n";}elsif($line=~/CREATEVIEW([a-z_0-9]*)(.*)/){$name="\`$1\`";$sub=$2;$line="DROPVIEWIFEXISTS$name;\nCREATEVIEW$name$sub\n";}elsif($line=~/INSERTINTO\"([a-z_]*)\"VALUES(.*);/){if($open==0){$open=1;$line_cache.="INSERTINTO\`$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"SETAUTOCOMMIT=1;\n";
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