Ssdt Data Compare
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Free Tool to compare Sql Server tables
I would like to compare two SQL Server databases including schema (table structure) and data in tables too. What is best tool to do this?
marked as duplicate by John Palmer, stusmith, Praveen Kumar Purushothaman, C.Evenhuis, user13673Nov 29 '12 at 0:55
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15 Answers
I am using Red-Gate's software: http://www.red-gate.com
I use schema and data comparison functionality built into the latest version Microsoft Visual Studio 2015 Community Edition (Free) or Professional / Premium / Ultimate edition. Works like a charm!
Red-Gate's SQL data comparison tool is my second alternative:
(source: spaanjaars.com)
I like Open DBDiff.Updated Open DBDiff Link
It's not the most complete tool, but it works great and it's free. And it's very easy to use.
SQL Admin Studio from http://www.simego.com/Products/SQL-Admin-Studio is now free, lets you manage your SQL Database, SQL Compare and Synchronise, Data Compare and Synchronise and much more. Also supports SQL Azure and some MySQL Support too.
[UPDATE: Yes I am the Author of the above program, as it's now Free I just wanted to Share it with the community]
I'm partial to AdeptSQL. It's clean and intuitive and it DOESN'T have the one feature that scares the hell out of me on a lot of similar programs. One giant button that it you push it will automatically synchronize EVERYTHING without so much as a by-your-leave. If you want to sync the changes you have to do it yourself and I like that.
There is one tool with source code available at http://www.codeproject.com/Articles/205011/SQL-Server-Database-Comparison-Tool
That should give flexibility as code is available.
dbghost is the best i have used to date. one of the best features i have seen is that it will generate SQL code to go between versions of a database based on the SQL you keep in source control, as well as a database. simple and easy to use.
I've used SQL Delta before (http://www.sqldelta.com/), it's really good. Not free however, not sure how prices compare to Red-Gates
Try DBComparer, it's free and fast:
Database Workbench can made it too
Cross database development
Use the Schema Compare and Migration Tools to compare testing and deployed databases, migrate existing databases to different database systems.
you can also made it with database Comparer
I use it for Firebird and it works well.
Try dbForge Data Compare for SQL Server. It can compare and sync any databases, even very large ones. Quick, easy, always delivers a correct result.Try it on your database and comment upon the product.
We can recommend you a reliable SQL comparison tool that offer 3 time’s faster comparison and synchronization of table data in your SQL Server databases. It's dbForge Data Compare for SQL Server and dbForge Schema Compare for SQL Server
Main advantages:
- Speedier comparison and synchronization of large databases
- Support of native SQL Server backups
- Custom mapping of tables, columns, and schemas
- Multiple options to tune your comparison and synchronization
- Generating comparison and synchronization reports
Plus free 30-day trial and risk-free purchase with 30-day money back guarantee.
We are using an inhouse developed solution that is basicly a procedure with arguments of what you want included in the comparision (SP's, Full SP code, table structure, defaults, indices, triggers. etc)
Depending on your needs and budget, it might be a good way to go for you as well.
It is quite easily developed as well, then we just redirect output of procedure to textfiles and do text comparisions between the files.
One good thing about it is that its possible to save the output in source control.
/B
I've used Red Gate's tools and they are superb.However, if you can't spend any money you could try Open DBDiff to compare schemas.
I would definitely go with AdeptSQL if you're using MSSQL. It's the least good looking but the most talented db compare tool amongst the ones I've tried. It can compare both the structure and the data. It tells you which tables exist on one db but does not exist on the other, compares the structure and data of the common ones and it can produce the script to synchronize the two. It's not free but has a 30 day trial (as far as I can remember)
I tried OpenDiff Tool . Great tool that is free and easy to use .
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-->You can compare the data in a source database and a target database and specify which tables should be compared. You can review the data and decide which changes to synchronize. You can then either update the target to synchronize the databases or export the update script to the Transact-SQL editor or to a file.
For example, you might synchronize databases to update a staging server with a copy of the production data. You might also synchronize one or more tables to populate them with reference data from another database. In addition, you might compare data before and after you run tests as an additional form of verification.
You can compare data in two databases, but you cannot specify a database project file or .dacpac for comparison because it does not contain data.
This section contains the following topics:
Requirements
When you compare data in a table or view, the table or view in the source database must share several attributes with a table or view in the target database. Tables and views that do not meet the following criteria are not compared and do not appear on the second page of the New Data Comparison wizard:
Tables must have matching column names that have compatible data types.
Names of tables, views, and owners are case-sensitive.
Tables must have the same primary key, unique index, or unique constraint.
Views must have the same unique, clustered index.
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You can compare a table with a view only if they have the same name.
Each object has a key or an index that determines the other objects to which it corresponds. However, each table or view can have more than one primary key, unique index, or unique constraint. Therefore, you might want to specify which key, index, or constraint to use.
Common Tasks
In this section, you can find descriptions of common tasks that support this scenario.
Set options to control how the data is compared: When you compare data, you can safely ignore identity columns, disable triggers, and disable foreign keys. You can also drop primary keys, indexes, and unique constraints from the update script.
Compare data in tables and optionally update the target to match the source: After you specify a source and a target database to compare and run the comparison, you can view the results in the Data Compare window. You can view not only details of the differences but also the update script that you can use to synchronize the data. After you identify differences between the two databases, you can specify an action for each difference. You can then update the target or export the update script to the Transact-SQL editor or to a file. You might want to export the script so that you or someone else can review it before you apply the changes.
Understanding Comparison Results
The following table describes the five columns in the Data Compare window.
| Column | Notes |
|---|---|
| Object | Displays the name of the table or view and a check box that indicates whether the target should be synchronized when you write updates or export the update script. The check box is unavailable for tables or views that do not contain data. |
| Different Records | Displays the number of records in the target that have the same key but not the same data as in the source. Parentheses enclose the number of records that are marked to be updated when you write updates or export the update script. |
| Only in Source | Displays the number of records in the source that do not occur in the target. Parentheses enclose the number of records that are marked to be added when you write updates or export the update script. |
| Only in Target | Displays the number of records in the target that do not occur in the source. Parentheses enclose the number of those records that are marked to be deleted when you write updates or export the update script. |
| Identical Records | Displays the number of records in the target that have the same key and the same data as in the source. These records are not updated when you write updates or export the update script. |
Table and View Details
When you click any table or view in the Data Compare window, the details pane displays all the rows that the table or view contains. Each tab in the details pane displays a different category (Different Records, Only in Source, Only in Target, Identical Records). For each row, you can select or clear the corresponding check box to indicate whether you want to include that change in the update script.
See Also
SQL Server Data Tools
How to: Use Schema Compare to Compare Different Database Definitions