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 though a list of reports and dynamically generate
Oracle find a constraint
I have a constraint called users.SYS_C00381400. How do I find what that constraint is? Is there a way to query all constraints?
Should I quote numbers in SQL?
I remember reading about quoting stuff when doing a SQL query and that when you quote something, it becomes a string. I also read that numbers should not be quoted. Now, I can’t find that quotation and I need to refresh my memory to see if I should quote numbers. Answer You should not quote numbers if you want to
Duplicate value in a postgresql table
I’m trying to modify a table inside my PostgreSQL database, but it says there is duplicate! what is the best way to find a duplicate value inside a table? kinda a select query?
Using alias in query and using it
I have a doubt and question regarding alias in sql. If i want to use the alias in same query can i use it. For eg: Consider Table name xyz with column a and b Is this possible in some way ? Answer You are talking about giving an identifier to an expression in a query and then reusing that
How to Join to first row
I’ll use a concrete, but hypothetical, example. Each Order normally has only one line item: Orders: OrderGUID OrderNumber ========= ============ {FFB2…} STL-7442-1 {3EC6…} MPT-…
How to fetch all recordsets which are linked through that table?
I have three tables, with these fields: classes: class_id | name | grade classes_students: class_id | student_id students: student_id | name Classes has a 1:n relationship with Students, so one …
Meaning of “Select tables optimized away” in MySQL Explain plan
What is the meaning of Select tables optimized away in MySQL Explain plan? explain select count(comment_count) from wp_posts; +—-+————-+—————————+———————…
How to return empty groups in SQL GROUP BY clause
I have a query to return how much is spent on-contract and off-contract at each location, that returns something like this: The problem is, I only get one row for locations that are all ad-hoc or all contracted expenses. I’d like to get two rows back for each location, like this: Is there any way I can accomplish this through
What’s “.” in postgresql dump file?
I have a Postgresql dump file which i’m trying to restore. I get this error regarding an invalid data i guess. ERROR: invalid input syntax for integer: “.” and when i checked the file, there are …