multiple-databases

I am building a SAAS application and we are discussing about one database per client vs shared databases. I have read a lot, incluisve some topics here at SO but I have still many doubts. Our plataform should be highly customizable by each client. (they should be able to have custom tables and add custom fields to existing tables). The multiple database aproach seems great in this case. The problem is. should my "users" table be in the master database or in each client database?. A user might have one or more organizations, so it would be present in multiple databases. Also, what about generic

Copying worksheets from multiple workbooks into current workbook Hi I was wondering if anybody if you guys could help me out? Im trying to copy multiple workbooks and just save it into only one worksheet. I have 2000 diffrent workbooks with the diffrent amount of rows, The ammount of cells is the same and it dosent change and they are all at the first sheet in every workbook. Im new with this kind of stuff so i'm thankfull for all help u can offer, I cant make it work. I'm using excel 2010 This is what I got atm: Sub LoopThroughDirectory() Dim MyFile As String Dim erow Dim Filepath As String

I have multiple database files which exist in multiple locations with exactly similar structure. I understand the attach function can be used to connect multiple files to one database connection, however, this treats them as seperate databases. I want to do something like: SELECT uid, name FROM ALL_DATABASES.Users; Also, SELECT uid, name FROM DB1.Users UNION SELECT uid, name FROM DB2.Users ; is NOT a valid answer because I have an arbitrary number of database files that I need to merge. Lastly, the database files, must stay seperate. anyone know how to accomplish this? EDIT: an answer gave me

This post describes how to update two databases from maven using liquibase: liquibase using maven with two databases However, when I try the exact same configuration in my pom.xml (included below) it does not work. I get this error when running 'mvn liquibase:update': The driver has not been specified either as a parameter or in a properties file. Running with verbose set to true I get: [INFO] Settings---------------------------- [INFO] driver: null [INFO] url: null [INFO] username: null [INFO] password: null so looks like the configuration is not being passed to liquibase. If the

I have master - slave replication setup for MySQL db backend for Django. Currently I am reading and writing for Master DB only, but my dashboards are quite query intensive. I was searching for an option, where in I can Define like following DATABASES DATABASES = { 'default_slave': { 'ENGINE': 'django.db.backends.mysql', 'NAME': 'application', 'USER': 'root', 'PASSWORD': '', 'HOST': '', 'PORT': '3306', }, 'default': { 'ENGINE': 'django.db.backends.mysql', 'NAME': 'application', 'USER': 'root', 'PASSWORD': '', 'HOST': '', 'PORT': '3306', }, } for dashboards, reports and various other apps, what

I have 2 databases db1 and db2 in symfony2 + doctrine2 and both databases are different from each other in terms of tables and their fields. I need to work on migration. Things work fine as long as there is one database. But it does not works when there are more than one databases. Also, is there any way where I can provide entity manager specific migration settings. Or is there any way through which I can provide connection or entity manager in the migration class. You can provide an entityManager using --em=name option in the migration task. I also add this piece of code, to avoid executing