I need to update a mapping table in postgresql, but of course it won't allow me to replace/drop the original table as there are dependencies.
The error message details does list the dependent views, but I'd like to generate a list programmatically so that I can make temp views while I drop my original mapping table and migrate the views back afterwards.
Prefer not to do this in SQL Shell incidentally. Any pointers would be much appreciated.
Related
We have master reference data tables that I can -
Define the table to Information Analyzer
Profile the data in the table
Define values in this table as values for a reference data table
Use these values in the project to check other table column values
What I would like to know is -
where can you see a catalogue of these tables
administer and publish this content
where can I see it as an asset in business glossary
if I can see the reference table asset in BG can I browse the values of the table
As far as I can see the answer to all those points is you can’t is this correct ?
The reference tables are listed in Information Analyzer under the Investigate > Table Management menu. You can open/view the values in these tables there. There is an option to Export when you open the tables which could be used to Publish. (However, for a full reference data solution for administering and publishing content, I'd turn to our Reference Data Management product.)
The reference tables are identified with a specific category (I think 'Domain and Completeness' if I recall correctly) in the Table Management screen.
These tables were primarily designed for internal use, though certainly visible and named under the IADB database.
If you import the metadata for the IADB as a distinct source (a needed step if you are using the named output tables option in the IA rules), then the reference tables will be visible in BG or Metadata Workbench as an asset. As with any such metadata references you cannot browse the values in the tables there (just like you wouldn't be able to browse the values of your customer master table from BG).
Hope that helps.
I create a DB where each table is a different project.
However, i am not sure how i would go about creating a form in which a user can choose a specific table (project) from a drop down menu and than be able to update/edit/modify the contents in the table.
Each table is standardized to contain exact column headers.
Thanks in advance for you help.
I'm using Filemaker Pro 12 and I was wondering if there is a way of creating a template for tables. There are a number of fields I'm placing in my tables that are identical utility-fields like modification time-stamp, active/inactive flags, etc. I was hoping there was a way that I could define the skeleton of each table somehow instead of having to manually add these identical fields every time.
If you are using the Advanced version, you can copy&paste fields among tables/files.
Using the regular version, you can import records from your "default" table and specify [New Table...] as the target table. This will recreate the source table's structure in the target file. The source table does not have to contain any records for this to work.
To expand a little bit on michael-hor257k's answer, if you're using FileMaker Pro Advanced, a good practice is to create a "Default" table that has your core utility fields. When you want to make a new table in Manage Database, instead:
Highlight the Default table,
Copy & Paste the table, then
Rename the new table.
It is more of an annoyance rather than real issue: when in Crystal reports you change the data source to one with different name (and do all the linking old columns to new columns) all the table names in Field explorer and (obviously) in formulas are changed. But the Database expert still shows the old table/view name!
Let me show this on example: Lets say I change TABLE_1 with column EQUIPMENT to VIEW_1 with column UNIT. Via the datasource location I can do the substitution and link old column EQUIPMENT to new one - UNIT.
But when I check either Datasource location or database expert it will be still showing old TABLE_1 (if you check the columns in the link tab you will notice that the TABLE_1 has now column UNIT instead of EQUIPMENT).
This can be quite annoying and frankly bit dangerous, especially if you return to report after a longer while. Is there somewhere a setting that allows to autoupdate table names in the database expert?
When you create the report it will create tables and each table will be linked to a datasource table. So the report table will have a name and datasource , which might be the same. When you change the datasource the datasource of the table will be updated but the report table name will remain the same. Think about this name as an alias. It might differs from th datasource name if you use the same table multiple times
I don't think there is auto update option in crystal reports but one thing you can do is to use Verify Database option under Database tab whenever you update the tables.
You need to manually edit table names in Database expert, there's no automatic way (and like Lan already answered, it is generally not possible).
This may be a very simplistic question, so apologies in advance, but I am very new to database usage.
I'd like to have Postgres run its full text search across multiple joined tables. Imagine something like a model User, with related models UserProfile and UserInfo. The search would only be for Users, but would include information from UserProfile and UserInfo.
I'm planning on using a gin index for the search. I'm unclear, however, on whether I'm going to need a separate tsvector column in the User table to hold the aggregated tsvectors from across the tables, and to setup triggers to keep it up to date. Or if it's possible to create an index without a tsvector column that'll keep itself up to date whenever any of the relevant fields in any of the relevant tables change. Also, any tips on the syntax of the command to create all this would be much appreciated as well.
Your best answer is probably to have a separate tsvector column in each table (with an index on, of course). If you aggregate the data up to a shared tsvector, that'll create a lot of updates on that shared one whenever the individual ones update.
You will need one index per table. Then when you query it, obviously you need multiple WHERE clauses, one for each field. PostgreSQL will then automatically figure out which combination of indexes to use to give you the quickest results - likely using bitmap scanning. It will make your queries a little more complex to write (since you need multiple column matching clauses), but that keeps the flexibility to only query some of the fields in the cases where you want.
You cannot create one index that tracks multiple tables. To do that you need the separate tsvector column and triggers on each table to update it.