I’m working alongside a SQL tutorial using queryparser and tidyquery in R. This has been going well until I was asked to do: Tidyquery reported that it did not support OVER functions so I am trying to replicate the OVER (PARTITION BY…) function with dplyr. This led me to with_order(order_by =̷…
Tag: sql
SQL: Getting Missing Date Values and Copy Data to Those New Dates
So this seems somewhat weird, but this use case came up, and I have been somewhat struggling trying to figure out how to come about a solution. Let’s say I have this data set: date value1 value2 2020-01-01 50 2 2020-01-04 23 5 2020-01-07 14 8 My goal is to try and fill in the gap between the two dates
How can I filter composite ManyToMany POJOs by children POJO’s attributes?
I have two Room Entities like this ones: …and a junction table for Many To Many relationship like this one: …and some composite class for obtaining some kind of “composite POJO”: …then, I have this kind of “composite DAO”: The point of the question is… The one t…
Counting Rows Includes JSON by Id in Codeigniter
We have one groups table name as “groups” (There is mail groups) We have one person table name as “person” (There is persons who has in mail groups) We saved person in the “person” table with json_encode by group ID. Because a person can belong to more than one group. The p…
How to insert value to a column as a result of geometry of another column in the same table
i have the database table posted below. the two columns geometryOfCellRepresentativeToTreatment and geometryOfCellRepresentativeToBuffer are of type geometry. and their value is equal the the geometry of the column fourCornersRepresentativeToTreatmentAsGeoJSON_ and fourCornersRepresentativeToBufferAsGeoJSON r…
Case when value of a group is 1 then all values of that group should be replaced by 1 – SQL
I’m writing a query (using Athena – AWS) and I need to substitute all values from a group if there’s at least one occurrence of another value. To exemplify: My original dataframe What I need: case when v1, v2 or v3 assume value 1 group by ID, then the whole column that contains 1 group by ID…
PL/SQL Block Finding number of suppliers for each nation
I’m still new to PLSQL and am currently using TPCH Dataset to practice. I have been trying this for a while not but I can’t seem to wrap my head around it and could use some advice. A rough overview of the dataset here. Here is my code so far However, when I tried just the select query, I got
Create view with one row for each column in a table
I have a table that looks like this: I need a view with 3 columns, that has a row for each column in the original table, so it would look like this: The values on the currency column in the view need to be created by me (the EUR, JPY, etc) and are fixed values; I need to get the
sql query to pl sql procedure
this is my requirement .i want fetch the record from one table and store it in another temporary table.i wrote as query.but dont know how to make it as procedure by declaring varibales and so. Daily new customers data will gets inserted in table.I only want to fetch the customer data who signed attribute_valu…
Select corresponding column based on columns
In MySQL, I try to select a corresponding value based on the greatest value between columns. Let’s take as example table ‘prices’: id supplier price1 quantity1 1 Microsoft 8,27 1000 1 Apple 10,25 2000 1 IBM 12,25 3000 2 Microsoft 9,45 2000 2 Apple 7,55 4000 2 IBM 6,78 6000 The result I inten…