Site icon Open Comparison

How you can convert MS SQL to PostgreSQL

Simply because the Microsoft SQL (MS SQL) has a user-friendly interface and also simple to understand, makes it the most popularly well-known database management system (DBMS) in the world. However The program has two significant drawbacks, which might at times suggest end users to look out for an alternative DBMS. They comprise of:

Analyzing the open-source databases is highly recommended to be able to cut back on price tag of ownership. You will need the PostgreSQL. It is simply one of the most popular open-source DBMS with relational database with object-oriented database functionality, making it the most suitable choice when it comes to data integrity as well as high level of reliability.

To move database from MS SQL to PostgreSQL, the process below are required:

How You Can  Export MS SQL Table Definitions

Correct the  resulting script before you proceed to the next step.

How You Can Load Outcomes To Postsql

Step 2 is to process the data, which can be performed by using the MS SQL Management Studio.

Once export is performed, the exported data will appear in the destination file inside the comma-separated values (CSV) format.

Work around has to be applied if a few of the tables contain binary data. To achieve this, check out the wizard page and then click the “Write a query to specify the data to transfer” option. This wizard page can also be referred to as “Specify Table Copy or Query”. On the next wizard page known as “Provide a Source Query”, create the following SELECT-query:

SELECT

nonbinaryfield1,

nonbinaryfield2,

cast( master.sys.fn_varbintohexstr(

cast( binaryfieldasvarbinary(max))) as varchar(max)

) as binary-field-name

FROM

mssql_table_name

The query goes into an infinite hang, making this approach not applicable for large binary data, say 1 MB and above.

How You Can Load The Resulting CSV File To The Target Postgresql Table

Make use of the “COPY” as follows: COPY<table name> FROM <path to csv file> DELIMITER ‘,’ CSV;

Try the “\COPY” command in case you get a “Permission denied” error message with the “COPY” command.

The series of steps mentioned above suggests that database migration does call for a great deal of effort and it is often a complex process. Manual conversions cost a lot, time-consuming, and might often cause loss of data or corruption resulting in in correct results. However, you will find modern tools, that can enable you to convert and move data between two DBMS in a few clicks, and the MSSQL-to-PostgreSQL is just one of those tools and they are also readily available on the market.

Intelligent Converters, is a vendor of software programs that specializes in database conversion and synchronization procedures since 2001, made the SQL Server to PostgreSQL tool.

The tool, upon direct link with both source and target databases, provides a high quality conversion that doesn’t require ODBC drivers or any other middleware components. Additionally, it allows scripting, automation and scheduling of conversions.

 

Exit mobile version