I'm looking for an app that will compare the layout of 2 SQL tables. When developing in a DEV environment, I need a tool that will make the production tables exactly like the DEV tables (the layout).
SQL Compare from Red Gate and ERWin are two tools that work. Neither are free
I wrote a program called "SQL Server Comparison Tool" (SCT for short). You can try it for free for 30 days; I can extend that period to 90 days.
You can download SCT from www.sql-server-tool.com
SCT can compare both structure and data. You can "record" comparisons so that you can "re-play" them later without need for entering parameters again.
BeyondCompare can do this for you I believe.
You can try to use the SQL Examiner tool from the SQL Accessories.
Related
I have a sql sever database on 2 servers. The structure of it is the same on both. A problem that I have is that I want to copy data between both databases - but the problem is I need to drop and recreate all the constraints first.
Any quick and easy way to script the differences between both databases, regarding data?
Yes, stop spending hours and hours trying to write a script that does this. Use a tried and true tool that handles all of that effort and debugging for you:
http://www.red-gate.com/products/sql-development/sql-data-compare/
There is a trial edition and there are several alternatives as well. Read this to see why you shouldn't re-invent the wheel:
http://madelinebertrand.com/2012/04/20/re-blog-the-cost-of-reinventing-the-wheel/
Just throwing my 2 cents in. If you have Visual Studio 2010 Premium or Ultimate, you can actually use feature called "Data Compare" to compare data between two databases. And it will be able to generate update script for target database as well.
I can only repeat the same opinion as Aaron Bertrand has, and to add to that, I had success using XSQL for this kind of task.
As far as I remember, it was a nice, consistent tool to use...
First you would need to turn the constraints off by altering the table in question such as:
alter table [table name] nocheck constraint all
Then you could query from the other server by linking or query directly using the following format:
select [cols] from [local table], [remote server.remote DB.remote table]
What is the best method to generate random data in SQL database lke name surnames tel no etc?
Is there any tool available that can do this for you?
Basically I have a database and I would like to fill it out with demo data....
Thanks!
If SQL Server Redgate SQL Server SQL Data Generator does this.
http://www.generatedata.com/
This tool gives us the ability to download in a variety of formats, including the command for inclusion in the database
I need to compare DB tables from 2 different DB's to see where the differences lie, is there a simple tool or script for this?
redgate SQL Data Compare
It also possible with a Visual Studio Team Edition for Database Professionals 2005/2008 or Ultimate 2010. More details you can find on MSDN
if you want to compare missing rows you can do something like this
select id from db1.dbo.table1
where id not in (select id from db2.dbo.table2)
AdeptSQL Diff to compare structures of database/tables
http://www.adeptsql.com/
RedGate Data Compare is the one... Look no further. Once you start using you can't use any other tool. I'm not affiliated with this company, I'm just a fan of their product suite.
I'm looking for a way to validate the SQL schema on a production DB after updating an application version. If the application does not match the DB schema version, there should be a way to warn the user and list the changes needed.
Is there a tool or a framework (to use programatically) with built-in features to do that?
Or is there some simple algorithm to run this comparison?
Update: Red gate lists "from $395". Anything free? Or more foolproof than just keeping the version number?
Try this SQL.
- Run it against each database.
- Save the output to text files.
- Diff the text files.
/* get list of objects in the database */
SELECT name,
type
FROM sysobjects
ORDER BY type, name
/* get list of columns in each table / parameters for each stored procedure */
SELECT so.name,
so.type,
sc.name,
sc.number,
sc.colid,
sc.status,
sc.type,
sc.length,
sc.usertype ,
sc.scale
FROM sysobjects so ,
syscolumns sc
WHERE so.id = sc.id
ORDER BY so.type, so.name, sc.name
/* get definition of each stored procedure */
SELECT so.name,
so.type,
sc.number,
sc.text
FROM sysobjects so ,
syscomments sc
WHERE so.id = sc.id
ORDER BY so.type, so.name, sc.number
I hope I can help - this is the article I suggest reading:
Compare SQL Server database schemas automatically
It describes how you can automate the SQL Server schema comparison and synchronization process using T-SQL, SSMS or a third party tool.
You can do it programatically by looking in the data dictionary (sys.objects, sys.columns etc.) of both databases and comparing them. However, there are also tools like Redgate SQL Compare Pro that do this for you. I have specified this as a part of the tooling for QA on data warehouse systems on a few occasions now, including the one I am currently working on. On my current gig this was no problem at all, as the DBA's here were already using it.
The basic methodology for using these tools is to maintain a reference script that builds the database and keep this in version control. Run the script into a scratch database and compare it with your target to see the differences. It will also generate patch scripts if you feel so inclined.
As far as I know there's nothing free that does this unless you feel like writing your own. Redgate is cheap enough that it might as well be free. Even as a QA tool to prove that the production DB is not in the configuration it was meant to be it will save you its purchase price after one incident.
You can now use my SQL Admin Studio for free to run a Schema Compare, Data Compare and Sync the Changes. No longer requires a license key download from here http://www.simego.com/Products/SQL-Admin-Studio
Also works against SQL Azure.
[UPDATE: Yes I am the Author of the above program, as it's now Free I just wanted to Share it with the community]
If you are looking for a tool that can compare two databases and show you the difference Red Gate makes SQL Compare
You didn't mention which RDMBS you're using: if the INFORMATION SCHEMA views are available in your RDBMS, and if you can reference both schemas from the same host, you can query the INFORMATION SCHEMA views to identify differences in:
-tables
-columns
-column types
-constraints (e.g. primary keys, unique constraints, foreign keys, etc)
I've written a set of queries for exactly this purpose on SQL Server for a past job - it worked well to identify differences. Many of the queries were using LEFT JOINs with IS NULL to check for the absence of expected items, others were comparing things like column types or constraint names.
It's a little tedious, but its possible.
I found this small and free tool that fits most of my needs.
http://www.wintestgear.com/products/MSSQLSchemaDiff/MSSQLSchemaDiff.html
It's very basic but it shows you the schema differences of two databases.
It doesn't have any fancy stuff like auto generated scripts to make the differences to go away and it doesn't compare any data.
It's just a small, free utility that shows you schema differences :)
Make a table and store your version number in there. Just make sure you update it as necessary.
CREATE TABLE version (
version VARCHAR(255) NOT NULL
)
INSERT INTO version VALUES ('v1.0');
You can then check the version number stored in the database matches the application code during your app's setup or wherever is convenient.
SQL Compare by Red Gate.
Which RDBMS is this, and how complex are the potential changes?
Maybe this is just a matter of comparing row counts and index counts for each table -- if you have trigger and stored procedure versions to worry about also then you need something more industrial
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.
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.
I've worked with T-SQL for years but I've just moved to an organisation that is going to require writing some Oracle stuff, probably just simple CRUD operations at least until I find my feet. I'm not going to be migrating databases from one to the other simply interacting with existing Oracle databases from an Application Development perspective. Is there are tool or utility available to easily translate T-SQL into Oracle SQL, a keyword mapper is the sort of thing I'm looking for.
P.S. I'm too lazy to RTFM, besides it's not going to be a big part of my role so I just want something to get me up to speed a little faster.
The language difference listed so far are trivial compared to the logical differences. Anyone can lookup NVL. What's hard to lookup is
DDL
In SQL server you manipulate your schema, anywhere, anytime, with little or no fuss.
In Oracle, we don't like DDL in stored procedures so you have jump through hoops. You need to use EXECUTE IMMEDIATE to perform a DDL function.
Temp Tables
IN SQL Server when the logic becomes a bit tough, the common thing is to shortcut the sql and have it resolved to a temp table and then the next step is done using that temp table.
MSSS makes it very easy to do this.
In Oracle we don't like that. By forcing an intermediate result you completely prevent the Optimizer from finding a shortcut for you. BUT If you must stop halfway and persist the intermediate results Oracle wants you to make the temp table in advance, not on the fly.
Locks
In MSSS you worry about locking, you have nolock hints to apply to DML, you have lock escalation to reduce the count of locks.
In Oracle we don't worry about these in that way.
Read Commited
Until recently MSSS didn't fully handle Read Committed isolation so you worried about dirty reads.
Oracle has been that way for decades.
etc
MSSS has no concept of Bitmap indexes, IOT, Table Clusters, Single Table hash clusters, non unique indexes enforcing unique constraints....
I get the impression most answers focus on migrating an entire database or just point to some differences between T-SQL and PL/SQL. I recently had the same problem. The Oracle database exists, but I need to convert a whole load of T-SQL scripts to PL/SQL.
I installed Oracle SQL Developer and ran the Translation Scratch Editor (Tools > Migration > Scratch Editor).
Then, just enter your T-SQL, choose the correct translation in the dropdown-list (it should default to 'T-SQL to PL/SQL'), and convert it.
I have to things to mention.
1) When I worked on Oracle 8, you could not do "Select #Result", you had to instead use the dummy table as follows "Select #Result from dual". Not sure if that ridiculousness still exists.
2) In the Oracle world they seem to love cursors and you better read up on them, they use them all the time AFAICS.
Good luck and enjoy,
it is not that different to MS SQL. Thankfully, I do not have to work with it anymore and I am back in the warm comfort of MS tools.
If you replace your ISNULL and NVL nonsense with COALESCE, it'll work in T-SQL and PL/SQL!
It's not trivial to map them back and forth, so I doubt there's a tool that does it automatically. But this link might help you out: http://vyaskn.tripod.com/oracle_sql_server_differences_equivalents.htm
The most important differences for plain T-SQL are:
NVL replaces ISNULL
SYSDATE replaces GETDATE()
CONVERT is not supported
Identity columns must be replaced with sequences <-- not technically T- or PL/ but just SQL
Note. I assume you do not use the deprecated SQL Server *= syntax for joins
#jodonell: The table you link to is a bit outdated, oracle has become somewhat more standards compliant after 9i supporting things like CASE and ANSI outer joins
I have done a few SQL server to oracle migrations. There is no way to migrate without rewriting the backend code. Too many differences between the 2 databases and more importantly differences between the 2 mind sets of the programmers. Many managers think that the 2 are interchangeable, I have had managers ask me to copy the stored procedures from SQL server and compile them in oracle, not a clue! Toad is by far the best tool on the market for supporting an oracle application. SQL developer is ok but was disappointing compared to toad. I hope that oracle will catch their product up to toad one day but it is not there yet. Have a good day :) chances are if you are migrating to oracle it is for a reason and in order to meet that requirement you will need to rewrite the back end code or you will have many issues.
In Oracle SQL Developer, there is a tool called Translation Scratch Editor. You can find it from Tools > Migration.
The Oracle SQL Developer is a free download from Oracle and it is an easy install.
If you're doing a one-off conversion, rather than trying to support two versions, you must look at Oracle Migration Workbench. This tool works with Oracle's SQLDeveloper (which you really should have if you are working with Oracle). This does a conversion of the schema, data, and some of the T-SQL to PL/SQL. Knowing both well, I found it did about an 80% job. Good enough to make it worth while to convert the bulk of procedures, and hand convert the remainder "tougher" unknown parts.
Not cheap ($995) but this tool works great: http://www.swissql.com/products/sql-translator/sql-converter.html
A few people have mentioned here converting back and forward. I do not know of a tool to convert from MSSQL to Oracle, but I used the free MS tool to convert a Oracle db to MSSQL and it worked for me and converted a large db with no problems I can call. It is similar to the Access to MSSQL tool that MS also provide for free. Enjoy
jOOQ has a publicly available, free translator, which can be accessed from the website here: https://www.jooq.org/translate
It supports DML, DDL, and a few procedural syntax elements. If you want to run the translation locally via command line, a license can be purchased and the command line works as follows:
$ java -cp jooq-3.11.9.jar org.jooq.ParserCLI -t ORACLE -s "SELECT substring('abcde', 2, 3)"
select substr('abcde', 2, 3) from dual;
See: https://www.jooq.org/doc/latest/manual/sql-building/sql-parser/sql-parser-cli
(Disclaimer, I work for the vendor)