I am writing a python script to get reports of data every day. For example, data is coming continuously and I want to get the report just for the data that came that day. So the report will be …
How to join 2 DB tables and perform GROUP BY at the same time?
I have 2 tables: Equipment(PK int id,nvarchar name) EquipmentAction(int EquipmentId, datetime Timestamp) I want to display the earliest Timestamp for each named Equipment and I cannot figure it out. …
Check if entity already exists in a table
I want to check if entity already exists in a table, I tried to search google from this and I found this , but it didn’t help me. I want to return False if the entity already exists but it always …
SQL Where data is equals to 2 different values
I have the following query: I want to return rows where reservation is anything EXCEPT ‘no-show’ or ‘removed’ Right now it’s returning rows still that are ‘removed’ I ran the command directly in sql and the same problem 🙁 Answer Use NOT IN: You seem unfamiliar with th…
SQL select from Table1 that has no value in Table2
I have two tables with the following data: Table 1: Table 2: Then I used a join for this Table 3: I need to get the row with 101 – 204 – A and 102 – 213 – A. Data is available in Table 1 but has no data aligned in Table 2. Is there a way to get this?
Get rows within current month
Get the rows from a table filtered by current month in psql. Example table – After query result, assuming current month is July, 2020: Answer The usual approach is to use a range query to allow for an index usage on registration_date
SQL sum values in columns for each row
I have the following table: how do I sum the values of say, column 2 and 3, to return the sum? The expected result is: Answer You can do maths within a select statement, so the following will work:
MySQL – GROUP BY not working with multiple CASE WHEN statements
I am working on a database with Kickstarter database, and I’m trying to: Define short, medium-lengthed, and long campaigns See how much each length of campaign raise Convert different currencies into …
additional condition in a SQL query with min(Date)
I have the code presented below provided to me by one of the members but I do not understand how it acts: The code extracts the min of start from another table. I wanna add an aditional condition like: I cannot insert the condition without an error. Also, I need only to see min(pr.”AsigStart”) fro…
SQL query to get the output
I have two tables Table A and Table B as listed below. What is the SQL query to get the below output? Answer This looks like a cross join, to generate all possible combinations of rows between the two tables. Assuming a structure like tablea(col), tableb(col): If you want to concatenate the results in a singe…