Suppose I have three tables in PostgreSQL: Suppose I am using the using the following query: I get 50 as count. Whereas with: I get only 25 as count. What is my mistake in the second query? What can I do to get the same count? My requirement is that there is a single user table, referenced by multiple tables.
Tag: join
How to retrieve count of records in SELECT statement
I am trying to retrieve the right count of records to mitigate an issue I am having. The below query returns 327 records from my database: Where I run into trouble is trying to reconcile that with the below query. One is for showing just a count of all the particular students the other is showing pertinent in…
MySQL Query join last comment to topic
I have a topic and topic_comments table. I want to join them both. The join is on topic.id = topic_comments.parent_id. I want to show the topic with latest comment and order by latest comment createdate. And not show duplicate topics. Can anyone help me? So far I have this: This however doesn ‘t show to…
How can I return 3 COUNT columns from the same table when JOIN with other tables as well?
I would like to know how I can return several COUNTs for the following: I have 27 work sites, each site has an employee with a contract, I have wrote a script to return one actual column of data (…
Laravel Eloquent to join table and count related
How do I use join with Eloquent taking in consideration the following table structure: I have a properies table ——————— ID | Name ——————— 1 | Property Name than …
Using inner Join in Solr query
In SQL, I have the query like this SELECT * FROM table1 INNER JOIN table2 ON table1.table1To2Id = table2.table2Id INNER JOIN table3 ON table1.table1To3Id = table3.table3Id How can I …
Set column to a concatenated value from another table
I have 2 tables in SQL Server 2008: Address: nameid | e-mail ————— 1 | xyz@abc.com 2 | fgh@asdf.com 3 | 123@doremi.com Member: nameid | memberid ————— 1 | …
Select info from a table referencing info from another table
I have a main product table with different products. Different products have different specs, so I’ve created separate specs tables for each product (there will be more than ten of them). What I want to do is to show individual product’s specs on a product_page.php whenever the product is clicked.…
inflation calculation in MS SQL
I have the below requirement to fulfill. How to achieve this simplistically. There is an inflation rate table as below I need to first get And then get Answer I think the best way to do this on SQLserver is to use a common table expression with recursion. I’m not 100% sure because I can’t test it …
Counting number of joined rows in left join
I’m trying to write an aggregate query in SQL which returns the count of all records joined to a given record in a table; If no records were joined to the given record, then the result for that record should be 0: Data My database looks like this (I’m not able to change the structure, unfortunatel…