i have a table name average rating. i want to update my table name final rating with the result of this query how can i do this? Answer Maybe something like or if the FinalRating table contains more information you could also specify the columns you can also add a where clause to either query if you need a su…
Tag: sql
SQL query to get top performer statistics per year (eg 3 pointers)
I have a table with players per year and some stats. For example (player_key, player_name, year, 3point_trials, 3point_score) I want to have as an ouput the top performer per year (3point_score/3point_trials). If two of them have the same % then the breakeven is the the 3point_trials, whoever has the most tri…
Extrapolate Data
I have the following two tables in my database. One holds transaction data and the other holds development periods. How can I extrapolate the data into the future development periods like below? Answer One method uses cross apply:
Get all posts with sum of votes and if current user voted each post
If have the following two PostgreSQL tables: Post table: postid | title | author | created Vote table: postid | username | vote where vote is equal to 1 if the user voted the post up, 0 if the user did not vote and -1 if the user voted the post down. I want to receive now for every post
Problem with identifying index in php html
My website must consist of a page with table where admin must upload some file. Later that file is saved by php as a blob in mysql, however, $_FILES cannot find and index of my file input. Please help finding a mistake. PHP code Answer Apart from security flaws in your code you are missing enctype=’mult…
De-duplicate rows in GCP Big Query (SQL) based on two columns [closed]
Closed. This question needs debugging details. It is not currently accepting answers. Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question. Closed 2 years ago. Improve this question IR…
join without a join in PostgresSQL
I have code with the following psql query that I try to understand (It was simplified for the question): Is it the same as doing a join, or am I missing something here? Answer You are doing an old school implicit join. This is the syntax used before the ANSI-92 SQL standard which started recommending explicit…
How to merge rows using SQL only?
I can neither use pyspark or scala. I can only write SQL code. I have a table with 2 columns item id, name. I want to generate results with the names of an item_id concatenated. How do I create such a table with Spark sql? Answer The beauty of Spark SQL is that once you have a solution in any
SqlCommand ExecuteNonQuery() not committing changes
I have a function in which i pass through some SQL and attempt to execute it against a database. The function completes fine and a SQL trace shows me that the query is being executed against the database, but when i refresh my select statement, the data has not updated. In this instance, the query is a simple…
MS Access – how to rank with 3 variables
I am trying to rank using 3 variables from the sample data below: +————-+———-+—————–+——–+ | Case Number | Doc Type | Document Number | Rank | +————-+———-+——R…