I want to create a test database from a huge schema in MySQL, but when I try to do Forward Engineer from a Diagram with about 6 tables, it try to create all the tables, views and routines groups that I have in the schema.
Is there an automatic way to do that instead of selecting one by one the tables I want?
There's no way other than using the filter settings. Add a feature request at http:/bugs.mysql.com for a way to select only the current diagram for sync/forward eng.
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I have a table in MySql in one server and a table in PostgreSQL in another server.
I want use use JOIN operation with those tables.
Is there any way to join the columns?
If not, is there any way to print the rows in same order?
Please help!!
Use mysql_fdw to define the MySQL table as a foreign table in PostgreSQL. Then you can join it with the PostgreSQL table in PostgreSQL.
You can use Materialize to achieve this.
Here is a sample demo project that you can run to see this in action:
You can find the code for the demo project and how to run it on GitHub here:
https://github.com/bobbyiliev/materialize-tutorials/tree/main/mz-join-mysql-and-postgresql
Hope this reference helps.
Yes, it is possible to work with multiple databases at the same time but you're looking in the wrong place. psycopg2 is just a library that simplifies accessing and manipulating data coming out of PostgreSQL but it doesn't go far beyond what you can do with psql. What you're looking to do you can solve on the database level by using Foreign Data Wrappers.
This does become more complicated in your schema definition but brings remote tables from host some.other.server database remote_db to appear as though they live on localhost in database local_db....
More:
https://dba.stackexchange.com/a/120682/197899
I have a database diagram in Workbench and this diagram is synchronized with my database. This database has more than 500 tables, and I need to add a new column to most tables, it is not a viable option to add it one by one and then synchronize the changes with the database. Is there any workbench option that allows me to add the field in bulk to many tables ?.
The only way I can think of is to make a script that automatically adds that attribute to the tables and then perform the inverse synchronization, that is, update the diagram from the database.
What do you think? Any better solution?
I have a domain, for which I got a website created by someone. They have used MySQL as the DB, but did not do a good job of documenting this and now it is a total mess where I do not know how the DB Tables connect to each other (there are still only 73 tables in 2 DB's).
I have the option of downloading all the table schemas into SQL statements, Excel, etc., but wish to figure out a way to create a ER diagram from the DB Tables on the site itself, so I can replicate it later.
Is there a way to get the ER diagram from the tables on the site itself? If not, which is the best way to convert the SQL Schema into an ER Diagram?
You should look at MySql WOrkBench
I have used Squirrel SQL Client to view the relationships between tables visually. You can select any table and view "tables that depend on that table" or view "all related tables".
Also look at the tutorial here
I have exported my sql statements from phpmyadmin 'data.sql'. I wish to reverse engineer the sql file to display the relational database diagram. Is there a way? I tried tools such as Visio, it is not accepting .sql files.
How about just executing it locally, and then look at all the tables, views, data, etc from there? All depends on what data.sql actually contains. If its insert statements only, you can only guess on the schema. If it is CREATE TABLE statements, you will have more luck.
It should be very simple, although you won't get datatypes. The data.sql should show you column names and table names, from there it's a pretty simple jump to assembling the table.
That's not reverse engineering but you can certainly use tools such as MySql Workbench to create ER Diagrams from existing databases.
For SQL Server, SSMS has an option to generate Database diagrams.
I want to create two tables with one to many relations. I use MySql Control center,but I did not find to add foreign key.I do not want to use console commands,How can I do? I also want to use transation so I use InnoDB table type, How can I add relation between two tables in Control Center.Is there another GUI software to handle Mysql?Pls tell me.
You should check SQLYog by Webyog
http://www.webyog.com/en/downloads.php#sqlyog
Why don't you give a try to MySQL Workbench 5.1 OSS it can do the job for, after created the entity you just export it as SQL format or XML as you wish, then import to your mysql database.
Folow the link Download Here