I have following table: Expected output is: The aggregation computation involves 2 columns, is this supported in SQL? Answer In Spark SQL you can do it like this: or in one select: Higher-order aggregate function is used in this example. aggregate(expr, start, merge, finish) – Applies a binary operator to an initial state and all elements in the array, and
Tag: multiple-columns
SQL/MYSQL /Transpose table / Columns into rows and rows sum as column with new header
i have a table like this Its simple in Excel sheets but im stuck in MySql Appreciate the help Thanks — SeasonType,Sacks,SacksYards are columns — union all attempt column sacks,sacksyards table — — fantasydefencegame Answer This should fairly give you some ideas. Supposing we are using a test database named testdb and your original table is named test which has
SQL Developer duplicate column name while creating view
I am getting this error while running statement specified below ORA-00957: duplicate column name 00957. 00000 – “duplicate column name” My query: Answer Just need to add column aliases.
How can I count the number of zeros in all columns for a table in oracle sql
Suppose you have a database table named db_table1 with hundreds of columns and most of them contain lots of 0’s. I’m trying to count zeros for each column and divide it by the length of column so I can see the ratio of zeros in each column. The below code gives me the ratio of nulls in each column. But
SAS computing multiple new variables from one row
I have a dataset as listed below: and I want to calculate 3 new variables (ERR_CODE, ERR_DETAIL, ERR_ID) according to behavior of certain columns. If V1 is greater than 4 then ERR_CODE = A and ERR_DETAIL = “Out of range” and ERR_ID = [ID]_A If V2 is greater than 4 then ERR_CODE = B and ERR_DETAIL = “Check Log” and
Pivoting rows to columns with custom column names in SQL Server
I’m having some difficulty with pivoting rows into columns as I also want to name the columns. Here is my current code, modified: And my current output: Just for the sake of shortness, I replaced the actual Message with longmessage1 above. My desired output: The maximum amount of greetings is six, and if a Message doesn’t have six, I’m fine
Pass Column Names into SQL statement in dynamic way – Python- SQL Server
Example of ‘fields’ value = name, surname, date I can put ‘fields’ in a list but I do not know how many (?) to put inside the query. Because, fields variable will include sometimes 5, sometimes 10 column names. I am trying to pass column names dynamically to the query. How can I solve this problem? Answer A statement could
How to split a column into multiple columns by condition delimeter in SQL?
could anyone help me please? I have this column Column
John > Doe Doe > Writer
Jane > Doe > Chemical Engineer > Sovena
I want to my final result to be …
Unique value Constraint with multiple columns across the table, not the combination in Oracle
In oracle is there a way to enforce uniqueness among two columns? Its not the uniqueness among combination of two columns, but values across table among two columns. References: Unique value constraint across multiple columns Example data, which should not be allowed: Unique constraint on combination of two columns? My Oracle Version: Answer I would use a check() constraint to
How to select result of 2 multi conditional columns
im trying to display a result based on 2 multi-conditional columns. I have 3 columns,One being a client, one of them is Product and one of them is Class. There are multiple products that each have …