multiple-databases

Ok, my first question was modified so many times that I chose to delete it and reformulate my question. I've made a small test-case project with different model-names to find a proper solution for my problem. Warning : Don't mix the databases up with tables Motivation : I separated the user-data into multiple databases for legal & performance issues. Currently I'm working on a CakePHP project that has multiple User 's and each User has it's own database with multiple tables ( cars is one of the tables ). Now, I need to explain something first: Every User has his own database (not a table, a

I have (for testing purposes) many dbs with the same schema (=same tables and columns basically) on a sql server 2008 r2 instance. i would like a query like SELECT COUNT(*) FROM CUSTOMERS on all DBs on the instance. I would like to have as result 2 columns: 1 - the DB Name 2 - the value of COUNT(*) Example: DBName // COUNT (*) TestDB1 // 4 MyDB // 5 etc... Note: i assume that CUSTOMERS table exists in all dbs (except master ). Devart Try this one - SET NOCOUNT ON; IF OBJECT_ID (N'tempdb.dbo.#temp') IS NOT NULL DROP TABLE #temp CREATE TABLE #temp ( [COUNT] INT , DB VARCHAR(50) ) DECLARE

I have an application that runs Spring MVC. I need it to access 2 different databases in my app (one is a PostgreSQL and the other one is a MySQL database). How do I configure this using just annotations or application.properties file? Regards. Here is the example code for having multiple Database/datasource on Spring-Boot I hope it helps! application.properties spring.ds_items.driverClassName=org.postgresql.Driver spring.ds_items.url=jdbc:postgresql://srv0/test spring.ds_items.username=test0 spring.ds_items.password=test0 spring.ds_users.driverClassName=org.postgresql.Driver spring.ds_users

I have WordPress instances with each in its own database. For an update I need to query all active plugins, that are stored in a table 'wp_options' and accessible via WHERE option_name='active_plugins' How can I access all active plugin settings (spread over multiple databases) and output them in one single SQL result? I know the database.tablename syntax, but how do I go on from there with the above Where statement? A request in a single database would look like this: SELECT option_value FROM `database`.`wp_options` WHERE option_name="active_plugins" SELECT option_value FROM `database1`.`wp