Tag: count

SQL – count function not working correctly

I’m trying to count the blood type for each blood bank I’m using oracle DB the blood bank table is created like this when I use the count function the result would be like this so why the count function is not working correctly? I’m trying to display each blood bank blood type count which is not only one in

2 column with 2 different condition in one table

count oracle pivot sql

is it possible to create a query that will output 2 column with 2 different WHERE clause this my ideal output: where count 1 is the result of the 1st WHERE clause. Which I already created. What I want is to have another column where in the value will be with different WHERE clause. here’s my query: with this query

How to pull the count of occurences from 2 SQL tables

count left-join sql sqlite subquery

I am using python on a SQlite3 DB i created. I have the DB created and currently just using command line to try and get the sql statement correct. I have 2 tables. When I setup table two, I added this statement in the creation of my messages table, but I have no clue what, if anything, it does: What

how to query the max value of count

count mysql sql sql-order-by

I try to get the max count value but error this is my data I need to get the max count of tool_id I use this code to get tool_count and I use to get max tool_count but it error the result I need : Answer You can try using order by desc with limit 1

count() results without using group by

count mysql sql subquery

I am attempting something very similar to last example (Using GROUP BY) on this page: https://thecodedeveloper.com/mysql-count-function/ Referring to the following table of data: The following query: Will produce the following output: Except I want to see the number of employees in each department as well as every user in the table. So I want the output to look like this:

Joining table which may not exist with where clause

count left-join postgresql sql where-clause

I have two tables. Let’s say they are: I’d like to make a join to get customer name, number of orders which he/she has finished and sum of money which he/she has spent in total So I’m making this SQL query: If a customer has any finished orders then it will get everything right. But if there are no orders

SQL Complex update query filter distinct values only

count inner-join mysql sql sql-update

I have 3 tables with following columns. Table: A with column: newColumnTyp1, typ2 Table: B with column: typ2, tableC_id_fk Table: C with column: id, typ1 I wanted to update values in A.newColumnTyp1 …

How can I calculate a percentage from values obtained by 2 different queries in SSMS?

count pivot sql sql-server

First query: select COUNT(EUpdate) from EmpUpdates where EProj = ‘abc’ and EID = ‘101’; Second query: select COUNT(EProj) from EmpUpdates where EID = ‘101’; percentage = (first query / second …

Update column value based on ORDER of another query

count mariadb mysql sql sql-update

What I have: Hi guys, I have two tables. #1 model Where I store all models #2 video_models_model which connect model and video table (video is unrelated now) until now always when I needed models I ordered them based on in how many videos they are used in What I need: However I found out that sometimes I need to

COUNT WHERE two conditions are met in the same column

count having-clause mysql sql

I’m sure this has been asked before, but I can’t find a similar situation: Given a table ‘activity’ I need to count all users that have ‘SEM’ AND at least another channel IN contact_channel_ID Answer You can use aggregation and having: In MySQL, the having clause can be shorted to: