script to convert mysql dump sql file into format that can be imported into sqlite3 db

Question

I have an export SQL file containing tables and data from MySQL and I want to import it into a Sqlite 3 DB.

What is the best way to do that?

Just importing the file via the sqlite3 tool doesn't work.

Answer 1

This shell script help you

#!/bin/sh
if [ "x$1" == "x" ]; then
   echo "Usage: $0 <dumpname>"
   exit
fi
cat $1 |
grep -v ' KEY "' |
grep -v ' UNIQUE KEY "' |
grep -v ' PRIMARY KEY ' |
sed '/^SET/d' |
sed 's/ unsigned / /g' |
sed 's/ auto_increment/ primary key autoincrement/g' |
sed 's/ smallint([0-9]*) / integer /g' |
sed 's/ tinyint([0-9]*) / integer /g' |
sed 's/ int([0-9]*) / integer /g' |
sed 's/ character set [^ ]* / /g' |
sed 's/ enum([^)]*) / varchar(255) /g' |
sed 's/ on update [^,]*//g' |
perl -e 'local $/;$_=<>;s/,\n\)/\n\)/gs;print "begin;\n";print;print "commit;\n"' |
perl -pe '
  if (/^(INSERT.+?)\(/) {
     $a=$1;
     s/\\'\''/'\'\''/g;
     s/\\n/\n/g;
     s/\),\(/\);\n$a\(/g;
  }
  ' > $1.sql
cat $1.sql | sqlite3 $1.db > $1.err
ERRORS=`cat $1.err | wc -l`
if [ $ERRORS == 0 ]; then
  echo "Conversion completed without error. Output file: $1.db"
  rm $1.sql
  rm $1.err
    rm tmp
else
   echo "There were errors during conversion.  Please review $1.err and $1.sql for details."
fi

Answer 2

To get the above script to work, I made the following changes:

1. run it with #!/bin/bash
2. add two seds to the list of pipelined seds:
   • sed 's/\\r\\n/\\n/g'
   • sed 's/\\"/"/g'
3. the 'rm tmp' line is a no-op (unless you have a file named 'tmp' lying around :O )

4. my mysqldump command looked like this:

   $ mysqldump -u usernmae -h host --compatible=ansi --skip-opt -p database_name > dump_file

Then it worked nicely... thanks for the script.