Category "union"

Finding duplicate values in multiple colums in a SQL table and count for chars

referring to this question: Finding duplicate values in multiple colums in a SQL table and count I have the following table structure: id name1 name2 name3 ...

mySQL java union

i used this query java and mysql but its not work (if i send directly mysql console its work bun in java not work.) Here down is my code: PreparedStatement pst;

Best way to get list of element combinations from two mysql tables

I have two tables: Table "products" ID Name Price Quantity 1 Product A 10 10 2 Product B 20 10 Table "promotions" ID Product ID Type Price Quantity 1 1 disco

Faster method to delete a range of rows other that using union

I am using the below code to: Delete the similar rows, keeping only one and combine cells values in the range "N", separated by vbLf it works ,but with big rang

Convert columns to rows in Spark SQL

I have some data like this: ID Value1 Value2 Value40 101 3 520 2001 102 29 530 2020 I want to take this data and convert in to a KV style pair instead ID Val

union all in SQL (Postgres) mess the order

I have a query which is order by date , there is the query I have simplified it a bit but basically is : select * from (select start_date, to_char(end_date,

Spark hangs on union with zero running task

I have two records of type RDD[T] For example: val a: RDD[Integer] = .... val b: RDD[Integer] = ... when I perform val z = a.union(b) println(z) I find the s

Short-circuit UNION? (only execute 2nd clause if 1st clause has no results)

If I do: SELECT * FROM A WHERE conditions UNION SELECT * FROM B WHERE conditions I get the union of the resultset of query of A and resultset of

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