This is the query: I am trying to get all the checklist items that have the same item_stock_id from the checklists that have the same ambulance_id. However, the query from above is not working, showing me this error: Below is the ChecklistItem model: And this is the Checklist model: Answer To constrain the ea…
How to deduct sold quantity from stock tables in MySQL
I have two mysql tables. The two tables with the sample data are as follows. By this I want to build up a update query. This should deduct the quantity of the items in the sales table from the stock table. If such a query can be created in mysql it should be updated in ascending order on the stock_id
How to know what the select query took time?
I have 4 queries and I want to compare the time between them, Is there any command to show the time taken for every query? Answer You have can use SHOW PROFILE Statement. Enable it by using: For example, I executed some queries as below:
BigQuery SQL Regex_extract repeated pattern
New to regexp, below is the sample query and our try as below union all select ‘https://www.this-is-pqrs.com/<some_text>/ab.abc.ef.gh.ij/123456.csv’ str union all select ‘https://www.this-is-pqrs.com/<some_text>/ab.abd.ef.gh.ij/123456.csv’ str union all select ‘https:…
SQL: Two similar queries into one query such that returns one table with two columns
I want to run two queries that are pretty similar such that the query returns one table with two columns (one column for each query ran) Query #1: Query #2: Desired return: admin administrator groupID.1 groupID.1 groupID.3 groupID.2 Is it possible? I was able to get the expected return by doing a FULL OUTER J…
How to show the average and use it like condition in the same query?
I am working with a data base and I need to show the people who are older than the age average in a city comparing their age against that average. My code shows the people who is older than the average….but I can’t show the average of all the people (it’s allways the same number) in each lin…
SQL Developer duplicate column name while creating view
I am getting this error while running statement specified below ORA-00957: duplicate column name 00957. 00000 – “duplicate column name” My query: Answer Just need to add column aliases.
How to filter inconsistent records in sqlite
Say I have SQLite table with the following records: recID productID productName 1 1 Product A 2 2 Product B 3 2 Product C 4 3 Product D 5 3 Product D recID = primary key, auto increment. If I run: Result is: productID productName 1 Product A 2 Product B 2 Product C 3 Product D As you can
Oracle: WITH-clause querying two tables
Using an Oracle database, I have two tables: I am supposed to find – using the WITH-clause – all the employees who currently work in the same department where they started to work (hire_date = start_date and same department_id). I easily got the right result using a JOIN in the subquery: (Right) O…
SQL – Expand column of arrays into column of elements
I have a SQL table, and one column of the table has type text[]. I want to create write a query that will create a new table, which consists of all arrays flattened and concatenated. Ex: If there are 3 items in the table, and the array entry for each of those items is [1, 2, 3], NULL, [1, 4,