sqlpad | Legacy project in maintenance mode | SQL Database library
kandi X-RAY | sqlpad Summary
kandi X-RAY | sqlpad Summary
A web app for writing and running SQL queries and visualizing the results. Supports Postgres, MySQL, SQL Server, ClickHouse, Crate, Vertica, Trino, Presto, SAP HANA, Cassandra, Snowflake, Google BigQuery, SQLite, TiDB and many more via ODBC.
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Top functions reviewed by kandi - BETA
- Creates an app .
- Ensure the LDD LDAP compatibility are defined .
- List queries .
- Start the server
- Enables authentication strategy .
- Execute a batch of batches
- Formats schema results into an object
- Migrate implementation .
- Downloads the CSV from the request .
- Load seed data from seeds
sqlpad Key Features
sqlpad Examples and Code Snippets
Community Discussions
Trending Discussions on sqlpad
QUESTION
I'm trying to solve the following question on SQLPAD.
Write a query to return the number of actors whose first name starts with 'A', 'B', 'C', or others. The order of your results doesn't matter. You need to return 2 columns: The first column is the group of actors based on the first letter of their first_name, use the following: 'a_actors', 'b_actors', 'c_actors', 'other_actors' to represent their groups. Second column is the number of actors whose first name matches the pattern.
Table: actor
...ANSWER
Answered 2021-Jul-31 at 05:39you need this. The question actually says specific for a,b,c and others. You are not doing specific for a.b.c
QUESTION
The task is to
return the top 5 customer ids and their rankings based on their spend for each store.
There are only 2 tables - payment and customer. There are 2 stores in total.
For the store_id = 2, the rank() gives repeating 1,2,2,3,4,5 values which is 6. I dont know how to choose the 5 with sql code. Since it is actually 6 - i can't "limit 5"
the sqlfiddle is here. I can't make it do the row_number() in sqlfiddle.
My own query:
...ANSWER
Answered 2021-Mar-29 at 10:18The short answer is to use DENSE_RANK()
, not RANK()
. This will give you the correct ranking numbers that match the linked exercise's sample output.
From What’s the Difference Between RANK and DENSE_RANK in SQL?:
Unlike
DENSE_RANK
,RANK
skips positions after equal rankings. The number of positions skipped depends on how many rows had an identical ranking. For example, Mary and Lisa sold the same number of products and are both ranked as #2. WithRANK
, the next position is #4; withDENSE_RANK
, the next position is #3.
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