Import MySQL database into a MS SQL Server

I have a .sql file from a MySQL dump containing tables, definitions and data to be inserted in these tables. How can I convert this database represented in the dump file to a MS SQL Server database?

Use SQL Server Migration Assistant (SSMA)

In addition to MySQL it supports Oracle, Sybase and MS Access.

It appears to be quite smart and capable of handling even nontrivial transfers. It also got some command line interface (in addition to GUI) so theoretically it can be integrated into some batch load process.

This the current download link for MySQL version https://www.microsoft.com/en-us/download/details.aspx?id=54257

The current (June 2016) stable version 6.0.1 crashes with the current (5.3.6) MySQL ODBC driver while transferring data. Everything 64 bit. The 5.3 version with the 5.1.13 ODBC driver works fine.

deklin

I suggest you to use mysqldump like so:

mysqldump --compatible=mssql

phpMyAdmin is still a web-app and could potentially have some limitations for large databases (script execution time, allocatable memory and so on).

marionmaiden

I found a way for this on the net

It demands a little bit of work, because it has to be done table by table. But anyway, I could copy the tables, data and constraints into a MS SQL database.

Here is the link

http://www.codeproject.com/KB/database/migrate-mysql-to-mssql.aspx

Vladislav

Here is my approach for importing .sql files to MS SQL:

Export table from MySQL with --compatible=mssql and --extended-insert=FALSE options:

mysqldump -u [username] -p --compatible=mssql --extended-insert=FALSE db_name table_name > table_backup.sql
Split the exported file with PowerShell by 300000 lines per file:

$i=0; Get-Content exported.sql -ReadCount 300000 | %{$i++; $_ | Out-File out_$i.sql}
Run each file in MS SQL Server Management Studio

There are few tips how to speed up the inserts.

Other approach is to use mysqldump –where option. By using this option you can split your table on any condition which is supported by where sql clause.

If you do an export with PhpMyAdmin, you can switch sql compatibility mode to 'MSSQL'. That way you just run the exported script against your MS SQL database and you're done.

If you cannot or don't want to use PhpMyAdmin, there's also a compatibility option in mysqldump, but personally I'd rather have PhpMyAdmin do it for me.

I had a very similar issue today - I needed to copy a big table(5 millions rows) from MySql into MS SQL.

Here are the steps I've done(under Ubuntu Linux):

Created a table in MS SQL which structure matches the source table in MySql.
Installed MS SQL command line: https://docs.microsoft.com/en-us/sql/linux/sql-server-linux-setup-tools#ubuntu
Dumped table from MySql to a file:

mysqldump \
    --compact \
    --complete-insert \
    --no-create-info \
    --compatible=mssql \
    --extended-insert=FALSE \
    --host "$MYSQL_HOST" \
    --user "$MYSQL_USER" \
    -p"$MYSQL_PASS" \
    "$MYSQL_DB" \
    "$TABLE" > "$FILENAME"

In my case the dump file was quite large, so I decided to split it into a number of small pieces(1000 lines each) - split --lines=1000 "$FILENAME" part-
Finally I iterated over these small files, did some text replacements, and executed the pieces one by one against MS SQL server:

export SQLCMD=/opt/mssql-tools/bin/sqlcmd

x=0

for file in part-*
do
  echo "Exporting file [$file] into MS SQL. $x thousand(s) processed"

  # replaces \' with ''
  sed -i "s/\\\'/''/g" "$file"

  # removes all "
  sed -i 's/"//g' "$file"

  # allows to insert records with specified PK(id)
  sed -i "1s/^/SET IDENTITY_INSERT $TABLE ON;\n/" "$file"

  "$SQLCMD" -S "$AZURE_SERVER" -d "$AZURE_DB" -U "$AZURE_USER" -P "$AZURE_PASS" -i "$file"
  echo ""
  echo ""

  x=$((x+1))
done

echo "Done"

Of course you'll need to replace my variables like $AZURE_SERVER, $TABLE , e.t.c. with yours.

Hope that helps.

Also you can use 'ODBC' + 'SQL Server Import and Export Wizard'. Below link describes it: https://www.mssqltips.com/sqlservertutorial/2205/mysql-to-sql-server-data-migration/

Run:

mysqldump -u root -p your_target_DB --compatible=mssql > MSSQL_Compatible_Data.sql

Do you want to see a process bar?

pv mysqldump -u root -p your_target_DB --compatible=mssql > MSSQL_Compatible_Data.sql

来源：https://stackoverflow.com/questions/2621682/import-mysql-database-into-a-ms-sql-server

标签

mysql

sql-server

mysqldump