I got two tables. and a second The resulting View I need would look like this: I only managed to get it done with one column combined with a where clause: I would probably need some command which loop through the column names and joins column names with the values in the attribute column, because the real tab…
Tag: view
SQL: How to create a database view from tables with OneToMany Relationship?
There are three available tables and columns: Core – EmpID, EmpName 1, Yagga Boshu External – ExternalEmpID, ExternalDeptName 1 , Capegemini Position – EmpID, Dept P/S …
Service that does advanced queries on a data set, and automatically returns relevant updated results every time new data is added to the set?
I’m looking for a cloud service that can do advanced statistics calculations on a large amount of votes submitted by users, in “real time”. In our app, users can submit different kind of votes like …
PostgreSQL DROP VIEW IF EXISTS
In PostgreSQL when I run the command DROP VIEW IF EXISTS view_name; I get the response: View IF dropped. Can anyone explain what this means? why the word ‘IF’ instead of a response like: View …
VIEW – INDEX SQL SERVEr
Does anyone know another way to run the query below more efficiently? I’m using SQL Server 2014. I’m facing a problem if i create index on table or on view . On table 2 (TB_FATURA_ITEM_TRANSACAO_HST) , has stored 50 million rows . I was wondering using Schemabiding on View , but I was looking in s…
SQL: Create view using multiple tables and a cursor
I have two tables : ‘pc’ and ‘results’. the table ‘results’ contains so many results of every pc. I need to create view that contains all pc columns and the last result of every pc. I’ve tried this …
Pass In “WHERE” parameters to PostgreSQL View?
I have a rather complicated query on my PostgreSQL database spanning 4 tables via a series of nested subqueries. However, despite the slightly tricky looking appearance and setup, ultimately it will return two columns (from the same table, if that helps the situation) based on that matching of two external pa…
SQL Views “WITH CASCADE CHECK OPTION” Behaivor?
I can’t find any reference, or documentation on this. Does the condition clause read x = 1 AND y = 1 in case of UPDATE/INSERT on view2? Answer OK, so maybe have a look at WITH CASCADED CHECK OPTION and it’s example and Defining Views It would seem that the WITH CASCADE option does enforce all view…
How to create a summary view from multiple views?
Given I have the following view where N=1..100 Currently we have summary views which insert to a table like The table is then used to create an overall summary like Is there a way to create summary_view_all_plants without having to create each individual summary_view_N? I would like to be able to iterate thou…
What are views good for?
I’m just trying to get a general idea of what views are used for in RDBMSes. That is to say, I know what a view is and how to make one. I also know what I’ve used them for in the past. But I want to make sure I have a thorough understanding of what a view is useful for