So I have the following query select * from sval where fid = 4044 and val = 'True'; The output of the above is: sval table id fid timestamp val 1 4044 2019-01-22 00:00:00.000 True 2 4044 2020-02-22 00:00:00.000 True…
I am trying to create a query which always round up the timestamp to the next nearest 10 minutes. The solutions available online are not working for me. I have tried below solutions but not giving me expected results Postgres:…
enter image description here What is causing the error here? If I'm not confusing anything, everything is done as it should CREATE FUNCTION convert_temperature(temperature real, current_scale varchar DEFAULT 'Fahrenheit') RETURNS real AS $$ BEGIN IF(current_scale = 'Celsius') THEN RETURN temperatue*1.8+32…
I wrote this query and i got "missing FROM clause WITH t1 AS ( SELECT a.name account_name, SUM(o.standard_qty) total_std, SUM(o.total) total FROM accounts a JOIN orders o ON o.account_id = a.id GROUP BY 1 ORDER BY 2 DESC LIMIT 1…
We have customers, and Customer objects. One of these, which I was creating with a migration, was Customer( account='INTERNAL' ...) as a placeholder for when we manufacture stuff for internal consumption. Customers come and go, so the objects need to…
Whenever we join two tables with common names, those common names are duplicated. But what if you want to do a left join and replace values (especially NULL values)? For updating a table you can use the MERGE operator but…
Given the following schema CREATE TEMP TABLE tmp_table ( id_bucket int2 NOT NULL, id_property int2 NOT NULL, v1 varchar(320) NOT NULL, v2 varchar(320) NULL ); And the following data id_bucket id_property v1 v2 ------------------------------ 1 3 OT A 1 8…
I have two tables where similar records stored. I have to search for existing record, where reference value matches one record if record is not found in first table, I need to search second table. I tried querying like this…
Why do most(all?) SQL Databases give: SELECT FALSE < FALSE; -- FALSE / 0 Ok SELECT TRUE < FALSE; -- FALSE / 0 Ok SELECT NOT(FALSE) < FALSE; -- TRUE / 1 What? SELECT NOT(TRUE) < FALSE; -- TRUE /…
I have a .net web api that use postgresql. Backend is deployed on azure. Sometimes this error occures. I have max_connection set to 50, and I think it should be enough. In my code i use Entity Framework Core. How…