the entity generator does not seem to support composite unique keys, is the suggested way to get around this just to create 1 unique field with the concatenated values maybe ? e.g.
pkCol uniqueMultiCol unique_field1| unique_field2| unique_field3
1 a_b_c a b c
or maybe add a liquibase migration to add the unique multi column index?
Related
I am trying to make my power app have the functionality where only the user using the app can read their own items and edit their own created items.
Getting error Cannot change item-level permissions because this list or document library contains a column that enforces unique values.
Is there a way to fix this? I need some columns to be unique records to identify each unique user.
Thanks.
I'm afraid there is no solution to this unless you disable the unique value of those columns.
It seems like while submitting some column contains duplicate value. Check each unique enforced column value have unique value.
Can you please suggest how to check the unique values from entire share point site to avoid duplicates records. I was able to find only for a list with option "Enforce unique values" so that i have enabled this it not allows duplicate record in that list. is there any way to compare in all the lists?
"Enforce unique values" setting is based on a list or library column.
Then I create a site column and set it to "Yes",test if this could avoid duplicate records of this column in all lists:
However, this will only limit the values on one list or library. If multiple lists use the same site column and fill in the same value, nothing happens.
So there is no such way to enforce unique values in all lists.
Is there an easy way to overwrite a row that contains a unique index, rather than just failing?
Or do I need to do an update and/or a delete then add.
It would be nice to have a setting when trying to add a row that would violate a unique index constraint it would replace the exist row that matches that the unique index.
My db is defined on Azure using a Core (SQL) API. Any thoughts?
Use UpsertItemAsync(). This will work.
I want to retrieve all items within a specific column of a table.
In this scenario, I have 2 tables, The first table contains a primary key, and the second table contains a foreign key. a 1 to many relationship is set up for the tables respectively.
I want a function/way of retrieving all items within a column in table 2 that has a foreign key that matches the primary key in table 1.
One way of doing this is through a VLOOKUP, though surely through using DAX, or some other function set, I can exploit the relationship I have made in the DataModel to make this easier for me to do.
Why don't you just get the required data from the DB with a proper SELECT statement? Something like
SELECT column
FROM t1, t2
WHERE t1.key = t2.fkey
AND t1.key = 'whatever you search for';
Then you should get the data you want.
In columnfamily, composite column key is (integer, string). I have tried the following comparator_types:
1. CompositeType(IntegerType, AsciiType)
2. CompositeType(IntegerType, BytesType)
I am able to add rows to this columnfamily. But, when i query this columnfamily, columns are not sorted on composite key integer value.
How can i sort all the columns on column key integer? Is comparator_type fine? What's the best way to sort column keys on first part of composite key?
Sorry, the docs say you cannot sort all the columns on your first column key--the integer. First let's clarify terms for folks reading this: A composite column key is the Cassandra storage engine (Thrift/CLI) term for the compound primary key CQL term. http://www.datastax.com/dev/blog/cql3-for-cassandra-experts
The Cassandra 2.0 docs say, "ORDER BY clauses can select a single column only. That column has to be the second column in a compound PRIMARY KEY." http://www.datastax.com/documentation/cql/3.1/cql/cql_reference/select_r.html?scroll=reference_ds_d35_v2q_xj__querying-compound-primary-keys-and-sorting-results