Administrative functions > Creating and maintaining Quanvert databases > Creating a multiproject database > Considerations when creating a multiproject
 
Considerations when creating a multiproject
When creating a multiproject, remember these points:
Although some basic comparisons are performed on the contents of axes of the same name, they are not exhaustive. Make sure that variables that are not to be merged have different names.
When checking is complete across all constituent databases, variables are merged into the new database. If Quanvert is then used in any of the constituent databases, renaming or deleting any variables will damage links to the multiproject directory. You can correct this by recreating the multiproject.
When creating multiprojects, a database axis is created whose elements are the individual databases. These elements are created with the nz option in the Quantum program file. If a user runs Quanvert on a subset of the multiproject database (for example, North and Midlands only) and uses this axis as the rows or columns of a table, Quanvert will print only the elements for the databases being used (that is, the ones which are non-zero).
If a file starting with the string ‘tmpax9’ is found in a constituent database, an error message is generated and the run is terminated.
Up to 1000 databases with Quanvert Text, and up to 112 databases with Windows-based Quanvert, can be combined to form a single multiproject database.
See also
Creating a multiproject database