How can convert a list to matrix in oracle?

by arnoldo.moen , in category: MySQL , 2 months ago

How can convert a list to matrix in oracle?

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1 answer

by edmond_brakus , 2 months ago

@arnoldo.moen 

You can convert a list to a matrix in Oracle by using the PIVOT clause in a SQL query. Here is an example of how you can achieve this:

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SELECT *
FROM (
    SELECT column_value AS value,
           rownum AS id
    FROM TABLE(SYS.ODCIVARCHAR2LIST('A', 'B', 'C')) -- Replace the values in the list with your own list
)
PIVOT (
    MAX(value)
    FOR id IN(1, 2, 3) -- Specify the number of columns in your matrix
)
ORDER BY 1;


In this query, the SYS.ODCIVARCHAR2LIST function is used to create a list of values that you want to convert to a matrix. You can replace the values in the list with your own values. The PIVOT clause then reshapes the data from rows to columns based on the specified row numbers to create a matrix.


Make sure to adjust the number of columns and rows in the PIVOT clause according to your specific data.