I have three tabels, each of them has a date column (the date column is an INT field and needs to stay that way). I need a UNION accross all three tables so that I get the list of unique dates in accending order like this: Then I need to add a column to the result of the query where
Tag: union
Doing a union on two tables, but renaming columns that may have the same name in postgres and dropping others
I am doing a union on two tables that have some of the same column names. So, say they look something like this: Here is what I am currently doing: Currently I obviously get repeated columns. So here is what I want to do: 1- The table2’s columns name and details, I would like to rename to t1_name and t2_details
UNION 2 tables lots fields, few different, possible use SELECT *?
I have 2 MYSQL tables, one with 794 fields, another with 796 fields, the common 794 fields the same. Yes genuine figures, importing data from old system to new one. If I do: SELECT foo FROM (SELECT …
MySQL 5: How to find the peak of customers during working time
I have table in MySQL with times spent by customers and I need to find the most busy 30 mins. Expected result is something like multiplerows with time and number of customers: I can easily make 5 sql queries and get the result (I made some view in similar problem https://stackoverflow.com/a/59478411/11078894 ), but I do not know how to get
SQL UNION Query with Extra uncommon Field in Results
I have Four table, Now I display four common field using UNION sql query. Question : I want to display one uncommon field ( Company ) which in table name as Multiple Product with current result.How can I do it ? Current SQL : Answer You can just add an empty (or NULL) field to the other SELECT queries in
Easy substraction of year’s values
I do have the following database table containing the timestamps in unix format as well as the total yield (summing up) of my solar panels every 5 mins: Now I would like to calculate how much energy was produced each year. I thought of reading the first and last timestamp using UNION of each year: This works fine but I
Merge Multiple Queries Into 1 Query – On the same Row
I have 1 table called itemmovement : It has Item Id , Quantity In , Quantity Out , Invoice Id, Date. I need to make in one query to show how many pieces are sold and beside the sold column there will …
My query works but I need to make is scalable. I need to remove unions but not sure how to proceed
I need a list of the number of times a file has processed through our system. For example in week 1, for a given warehouseID, x number of files have processed 1 time, x number have processed 2 times, …
Combine and fuse the results of two SQL queries with UNION
I am writing two seperate SQL queries to get data for two different dates like so: SELECT number, sum(sales) as sales, sum(discount) sa discount, sum(margin) as margin FROM table_a WHERE day = ‘2019-…
Hive: Cant perform union query with limit
I am trying to run a union all query in hive but i get I also tried but i got what am i doing wrong ? Answer Use select from subquery: