I have two SELECT statment which I connect using UNION and I get error Since I create first one SELECT statment and run and I get result, and second also, so I run separatly and it works perfect. But when I use UNION I get error pusd2.StartDate invalid identifier. What is wrong here ? What I made wrong ? Tabl…
How to merge more than two select queries to single result set in oracle
I need to merge the result set of four queries into single result output. Example: I need the output in the below format Answer One option would be applying Conditional Aggregation during joining of the tables :
oracle sum by column without using union
I have this table: (supply table: how many products in storages) I should write a query to have this result: “Total_except_storage_30” has the total of every product in storages except storage number 30. For example first “total_except_storage_30” is for product_id 1000 in all storages…
SQL Concatenate all values in column B that have same value in column A for all values in column A
I am running PostgreSQL 12.4. I have a relatively large table like the following where column 1 and 2 are both of character varying type: I would like to create something like the following: Is there an easy way to do this? Answer You can use string_agg: You can find more info here.
How to order a query result by two columns with nulls last in one of the columns
I have the following table ‘client’ I want to fetch all rows from this table ordered by ID Desc, with nulls in the column filecount ordered last. So after the sorting I would like to get the following order: I tried the following but it doesn’t work: Answer I would use a CASE expression here…
Selecting all data from one table where conditions are met in another table
Say I have two tables: Table enterprise: id > integer name > text created_on > date Table contact: id > integer enterprise_id > integer (matching from table Prime) first_name > …
mySQL – How can I see which users submitted orders last month but not this month?
I need to figure out the users who submitted orders last month but not this month. This is my current query to count total users, but how can I cross check to see who has bought this month but not the last? This is my the customer orders table this would be the expected output, a list of all the
PostgreSQL: get all rows that contain an uppercase letter
How can I do the following stmt: select * from table where column has any uppercase letters; <– how to write this
Remove the time series before sequence of zero using sql
I have a time series as follows : Day. Data 1/1/2020. 0 2/1/2020 .2 3/1/2020 0 …… … 1/2/2020 0 2/2/2020. 0 3/2/2020. .2 4/2/2020. .3 5/2/2020. …
Concatenate values in a column by group within a loop (R or SQL)
Suppose I’ve got this data: key id value —– —- ——– 30 1 A 30 2 B 40 1 C 40 2 D 50 1 A 50 2 C …