I am new to SQL and I have the following query: This doesn’t work due to no such column: MyMax. Even though from my understanding the column for MyMax is being created on the fly, I’m guessing SQL still isn’t able to use its values immediately as an input into the next window function I already tried creating the column
Tag: common-table-expression
WITH queries with INSERT in MySQL
I’m trying to do something that I’m almost positive works in Postgresql: In other words, I want to grab the “something” row to be used for a bunch of new rows in “somwhere”. Each new entry should have a reference (like foreign key value) back to the same “something” row in the cte, mostly just to avoid a mess. However,
How to retain the first record while using Window function LAG()?
I have a data which looks like – Actual Table – VIN Mode Status Start End ABC123456789 Mode 1 Waiting for Auth 01/01/2010 00:00:00 05/05/2014 14:54:54 ABC123456789 Mode 1 Waiting for URL 05/05/2014 14:54:54 05/13/2014 19:09:51 ABC123456789 Mode 1 Waiting for User 05/13/2014 19:09:51 11/13/2014 22:26:32 ABC123456789 Mode 1 Authorized 11/13/2014 22:26:32 11/13/2014 22:31:00 ABC123456789 Mode 1 Authorized 11/13/2014 22:31:00
Get all ancestors of a child in postgres recursive query
I am trying to get all related ancestors of a child with more info by joining with another table. I’m kind of new to backend so recursive cte is hard to understand. Find SQL Fiddle here Data I have : product_id,user_id Data I need : user_id master_id cost id(john_snow) null 4 id(bran_stark) id(john_snow) 6 id(arya_stark) id(bran_stark) 8 id(sansa_stark) id(arya_stark) 10
‘WITH’ clause does not work with in operator
I have a simple query: It should create a MaxSal temporary table and then in the WHERE section it should check whether the Salary, DepId are inside said table. Unfortunately, this query gives me ORA-00920: invalid relational operator which I guess is referring to the in operator. If I put the Sub-query directly instead of first putting it in a
Convert CTE Query into normal Query
I want to convert my @PostgreSQL, CTE Query, into Normal Query because the cte function is mainly used in data warehouse SQL and not efficient for Postgres production DBS. So, need help in converting …
How to retrieve the properties stored in SQL with multiple inheritance
I’m storing the records in SQL that represent a multiple inheritance relationship similar to the one in C++. Like that: CREATE TABLE Classes ( id INTEGER PRIMARY KEY, name TEXT NOT NULL ); …
How to specify a limit on Postgres json_agg
I want a JSON output having the distinct values of a column and also a limited number of rows. This is the sample table that I have in a Postgres Database: Name Author Copies Sold —- …
Calculate cumulative product value
I have the following database table: Date Return Index 01-01-2020 0.1 Null 01-02-2020 0.2 Null 01-03-2020 0.3 Null I would like to update the Index value using the following …
Oracle DB sql group the table_names patterns into a group
I am trying to classify certain patterns of tables in individual groups and display the results this is fine i included a case statements and classified it but how to group the counts , let provide the sql logic and existing results and expected results so that it will be understood. database is Oracle 11g SQL Query EXISTING RESULTS EXPECTED