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I'm tired of opening Dia and creating a database diagram at the beginning of every project. Is there a tool out there that will let me select specific tables and then create a database diagram for me based on a MySQL database? Preferably it would allow me to edit the diagram afterward since none of the foreign keys are set...
Here is what I am picturing diagram-wise (please excuse the horrible data design, I didn't design it. Let's focus on the diagram concept and not on the actual data it represents for this example ;) ):
see full size diagram
Try MySQL Workbench, formerly DBDesigner 4:
http://dev.mysql.com/workbench/
This has a "Reverse Engineer Database" mode:
Database -> Reverse Engineer
I've recently started using https://github.com/schemaspy/schemaspy . It strikes me as having a good balance between usability and simplicity. (GraphViz now optional)
On a Mac, SQLEditor will do what you want.
This http://code.google.com/p/database-diagram/ will reverse engineer your database. Just do an export 'structure only' then paste the SQL into the tool.
Try MySQL Maestro.
Works great for me.
I believe DB Designer does something like that. And I think they even have a free version.
edit
Never mind. Michael's link is much better.
MySQL Workbench worked like a charm.
I just backed up database structure to SQL script and used it in "Create EER Model From SQL Script" of MWB 5.2.37 for Windows.
In MySql Workbench (6.0) its possible generate one diagram based on tables created.
For that you should access to the tools bar, press Model and forward Create Diagram from Catalog Objects and done!
Visual Paradigm for UML 9.0
It's awesome I used to work with mysql bench but for big databases (something like more than 300 tables) won't work very well but visual paradigm reverse database works so much better
phpMyAdmin has what you are looking for (for many years now):
It takes a small bit of configuration, but gives you additional benefits too:
http://www.phpmyadmin.net/documentation/#pmadb
Try out Vertabelo!
It's an online database modeler that supports reverse enginnering.
Just create free of charge Vertabelo account, import an existing database into Vertabelo and voila - your database is in Vertabelo!
It supports following databases:
PostgreSQL,
MySQL,
Oracle,
IBM DB2,
HSQLDB,
MS SQL Server.
Try SchemaBank. They support reverse engineering too.
The "Reverse Engineer Database" mode in Workbench is only part of the paid version, not the free one.
Here is a tool that generates relational diagrams from MySQL (on Windows at the moment).
I have used it on a database with 400 tables.
If the diagram is too big for a single diagram, it gets broken down into smaller ones. So you will probably end up with multiple diagrams and you can navigate between them by right clicking. It is all explained in the link below. The tool is free (as in free beer), the author uses it himself on consulting assignments, and lets other people use it.
http://www.scmlite.com/Quick%20overview
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I'm looking into whether a move from SQL Server is a viable option. To help me with this decision, I have some questions:
Is it possible to use asp.net membership on a MySQL server ?
Are there many/any useful tools to migrate tables/databases/etc and which ones are the best?
What are the Main disadvantages in moving to MySQL from SQL Server?
As it stands I have a large enough project but it doesn't avail of many MS features so if it's possible I'd like to move.
My company did this a couple years ago with a pretty big project. On thing that made it easier for us is that we mostly used very plain standards compliant SQL. No Linq, no Entity Framework, only a little T-SQL, and only a few stored procedures.
As far as getting your data into MySQL, We ended up creating our own tool for doing this. None of the existing stuff including "MySQL Migration Assistant" can anywhere close to being fully functional. Once you can recreate the schema on MySQL, Getting the data back in, is a matter of exporting to CSV and importing with LOAD DATA INFILE. Tranferring the schema was actually the hardest part. With so many tables, we couldn't just do it by hand. We wrote some code in .Net by starting off using this VBScript that we found, and upgraded it to use the tools in "Microsoft.SqlServer.Management" Namespace available for .Net.
For functions that exist in SQL Server but don't exist in MySQL, such as GetDate, it's easy enough to write your own functions in MySQL that map to these functions, instead of trying to find all the instances of this stuff in the code. There are quite a few syntax differences between MySQL and SQL Server, even with just using basic SQL. For instance MSSQL allows DELETE TABLENAME WHERE ...., but MySQL insists you use DELETE FROM TABLENAME WHERE..... That's just one, there are many other differences.
Anyway, it was quite an adventure, but it worked out well for us. It is do-able, but you have to be committed, and not be afraid to write your own migration tools.
Couple of things off the top of my head.
MySQL doesn't support CHECK constraints. Usually, if your dbms does support CHECK constraints, your tables use them.
Depending on the constraint, you might be able to rewrite it in one of these ways.
As a foreign key to a new table
As a trigger
As a daily (or hourly, whatever) exception report
As a module in application code (which could be part of an exception report)
Something else I haven't thought of.
MySQL's timestamps have a resolution of one second.
Microsoft has a SQL Server Migration Assistant but, naturally, it is designed to help users move in the other direction.
You may want to check out this whitepaper from the MySQL site (you'll need to register - I did not, so I don't know how valuable the paper will be compared to the knowledge you already possess):
http://www.mysql.com/why-mysql/white-papers/mysql_wp_mssql2mysql.php
There are also some products and guides that can be found with a fairly simple search, e.g.
http://www.spectralcore.com/fullconvert/tutorials/convert-mssql-sql-server-to-mysql.php
http://www.haidongji.com/2009/02/23/moving-data-from-sql-server-to-mysql/
I don't know that the ASP.NET Membership can be ported directly to MySQL but I am confident you could replicate its functionality (it is more a question of how much effort it will take, not whether or not it is possible).
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Hi what are the preferred mysql tools with professional developers. I am a recent computing graduate and have used the query browser and administrator from mysql throughout university and i have found them to be very useful.
I start a new job in a couple of weeks though as a web developer and was wondering whether they would be exepcting me to use the command line or some other mysql tools.
What do the professional developers generally use for interacting with mysql databses i.e. creating new schemas, tables etc.
This is the tool to generate MySQL queries. There you can find MySQL generator for different commands, like drop table, create table, rename database, create database etc.
mysqladmin should be sufficient for most of the tasks if not all of them.
For windows, HeidiSQL is fantastic. It might work on Linux through Wine, but I've never tried it.
I occasionally use MySQL Workbench, as it can help speed up schema design (and the price is right). A cursory knowledge of phpMyAdmin is useful as it is often the admin tool of choice on web hosting servers. Most of the time, however, I just use the command line interface from Linux.
Understanding what goes on beneath the GUI is a very useful (dare I say essential) skill to have. Just look here on SO, where you'll find a vast number of SQL scripts that would be difficult to explain or implement if a GUI had to be factored in.
The CLI is available almost everywhere. If you ever have to work on a computer other than your own, be it on site or in your office, you can be fairly certain that CLI access will be available. The same cannot be said for your GUI of choice.
SQLyog is what I turned to after trying to use HeidiSQL. I liked HeidiSQL but I loved SQLyog. There is a free version somewhere.
Probably
Navicat
phpMyAdmin
DB Forge Studio for MySQL
For the Mac for development I use Querious. The application is very well written and supports connecting to local and remote databases.
Both of the tools you point out are good, and they would probably expect you to have some familiarity with them. Usually I will use a tool such as Query Browser or pgAdmin (for PostGreSQL) to run simple queries.
Once you have more experience you might find the command-line tools helpful as well. It's only going to help you by learning them.
For most big companies, you usually use Microsoft Visio to develop and plot the database as well as the web layout.
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I'm starting a new project soon and I'd like to try to use some better tools this time around. The last project, I wrote all my Database creation SQL by hand for MySQL. I'm hoping there are some good tools out there for creating, maintaining and modifying database schema in MySQL. My budget is out-of-my-own-pocket, so free (as in beer) would probably be best. :)
MySQL Workbench : http://dev.mysql.com/workbench/
It is free and very easy to use. I usually create schema diagrams and export it as a .sql file to use with phpMyAdmin
http://dev.mysql.com/downloads/gui-tools/5.0.html offers a list of GUI tools to use.
Mac options, try Querious or Sequel Pro - here's a comparison:
http://theappleblog.com/2009/02/27/mysql-showdown-querious-vs-sequel-pro/
A complete list of data modeling tools can be found at databaseanwers
MySQL Workbench 5.1 (Beta 1) should be out March 6,2009. It will be available on MacOS, Fedora, Ubuntu, Windows. These are native C++ implementations on each platform. WB 5.1 is focused on Data Modeling (replacing Mike Zinner’s popular DBDesigner product).
MySQL Workbench 5.2 (Alpha 1) should be out mid April 2009 (around the MySQL Users Conference 2009). This will include a ground up rewrite of the MySQL Query Browser.
http://forums.mysql.com/index.php?151
I know this is an old thread but this is too good to miss out on. I've only just found out about this recently...
HeidiSQL
It supports connecting through SSH tunnels. It uses PuTTY (plink.exe) to do this but avoids having to manually fiddle with your PuTTY settings. It's even easier if you're using this nice portable version of PuTTY... http://jakub.kotrla.net/putty/
Plus it's open source. I strongly urge you to donate though as it's a great tool.
Another one that looks good is DBeaver
I used to really like MySQL Administrator but the new Workbench is way too bloated. I just want a quick way to browse the schema without having to SHOW TABLE STATUS
Use DB Schema editor but it is not freeware. But you can trial it for 15 days for free by downloading here
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I want to reverse engineer (import into diagram form) the database definition dump of a database I have, then since no foreign keys are defined in this particular database, I want to be able to manually create the table to table key mappings (using crow feet notation if possible).
I've taken a look at MySQL Workbench, and it gets me 85% of the way there.
The nice little relationship lines won't show up though, and the auto arrange is horrible. A quick search of google turns up several other options, so I can evaluate these on my own, but:
Can I get some feedback from you guys for which are your favorite tools to use for this scenario? Why do you like that(your) particular tool?
My intended purpose is to take a legacy database, and train jr. engineers on the organization of the DB. Visual aids are nifty. My fallback option is to recreate an ER diagram by hand. Not fun for 250+ tables.
You might check out DBDesigner ...
Now known as MySQL Workbench
http://dev.mysql.com/downloads/workbench/5.0.html
SchemaCrawler is a free, open source tool that can generate E-R diagrams, with the help of GraphViz. You can use regular expressions to select the tables and columns you want to display. Relationships are inferred from commonly used naming conventions.
I've had some success using two commercial (but relatively cheap!) tools- but I still haven't found any really solid open source ones after months of looking.
MyEclipseIDE is a subscription product, I think it's around $60 a year. It's a set of bundled plugins for Eclipse, one of them is an ERD analyzer that works OK. If you're programming in Java (or another eclipse-supported language), it may be worth it.
SQLMaestro for MySQL: This one is a bit more expensive, with a $99 noncommercial / $179 single seat license. The ERD it generates is much better, and it provides other tools that make it easier to administer and maintain a more complex schema.
My understanding is that MySQL Workbench is still under active development, but they've been banging on it for a long time without really wrapping it up. Maybe now that Sun owns them, they'll get it together.
Check out Vertabelo.
It's an online database modeler that works under Chrome browser.
It provides you with:
DB model versioning and validation,
generating SQL scripts for particular database,
supports collaboration - allows sharing DB model with other members of your team,
supports reverse enginnering.
Moreover it's free of charge.
Generate ERD with PHPMyAdmin is also a better option. PHPMyadmin added this functionality from version 3.4
detail step to generate ERD : http://goo.gl/0z3vFE
You can refer to PHPMyAdmin documentation for more info: http://www.phpmyadmin.net/documentation/#pmadb
I am using Mysql Workbench 6.1. By default the diagram will look crunched for large number of tables, making it difficult to figure out relationship between tables. Many tables will overlay on other tables. This is because, the default layout size is small.
In the menu, Go to Model >> "Diagram properties and size".
Change width and size to some thing big (for example width 23 and height 5) -
Then in the menu, Go to Arrange >> Autolayout.
Now we should see a clean diagram with all the relations. Now we can re-adjust width and height, more meaningfully
I use dbeaver which can manage mysql and many others like postgresql
Useful link :
https://dbeaver.com/docs/wiki/Database-Structure-Diagrams/
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The university I work at uses Oracle for the database system. We currently have programs we run at night to download what we need into some local Access tables for our testing needs. Access is getting to small for this now and we need something bigger. Also, the nightly jobs require constant maintance to keep working (because of network issues, table changes, bad code :) ) and I would like to eliminate them to free us up for more important things.
I am most familiar with MySQL so I setup a test MySQL server. What is the best way to automate copying the needed tables from Oracle to MySQL?
Edit: I accepted the answer. I don't like the answer but it seems to be correct based on further research and the lack of other answers provided. Thanks to all for pondering my question and answering it.
I don't think there is really anything that is going to do this. If you could setup a local Oracle database, then most likely you could as oracle has various means of keeping two databases "in sync", provided they are both Oracle.
If you must use mysql, then likely you are going to just have to write something to sync the data, this is of course always going to run in the same problems you currently have with the access "database".
You could setup something with HSODBC and triggers, but
I've found HSODBC to be very memory hungry
This is only going to add more load to your DB, which you say is already heavily loaded during the day.
If the main thing you are doing is wanting a local Test copy of your oracle database, you would be best to setup syncing with a local version of oracle, as far as I can tell from the licenses, oracle is free for development copies ( I have seen some posts to the contrary, but if you find that is the case, you could always use something like Oracle XE)
Could you just copy the Oracle tables and then set them up as linked tables in MS Access? This way the front-end stays the same plus you keep everything in Oracle (less moving parts than exporting and importing).
As Kellyn said, there are lots of free tools. One of them is SQLWorkbench http://www.sql-workbench.net/, which works with any JDBC database, so MySQL and Oracle should work.
It can create tables in Oracle if needed, or just only copy over the (updated) data.
There are many tool available to migrate data from oracle to mysql if your database is not very complicated.
You can use open source tools like Kettle pentaho ETL tool or paid enterprise tools like DB convert: https://dbconvert.com/oracle/mysql/
Lastly you can write a script or program that migrates the data.
Please find links related to your question:
https://dba.stackexchange.com/questions/150343/how-to-sync-a-mysql-db-with-a-oracle-db
Migrate from Oracle to MySQL