RAWSQL_REAL: from Tableau to SQL

Evaluates a permitted scalar SQL expression with positional substitutions. Below, 8 sample rows go through the calculation and through the SQL, and both return the same numbers.

Calculated field

RAWSQL_REAL("%1 * 1.25", [amount])

Sample data

labelquantityamountflag
cedar cedar 6512.8True
ORCHID-west66-7.6False
maple-east670null
willow north6825.3True
birch-birch694.9False
pine/south70-1.2null
ash719True
nullnullnullnull

The same calculation as SQL

SELECT amount * 1.25 AS result FROM input

Runs the example above.

Result

result
16
-9.5
0
31.625
6.125
-1.5
11.25
null

Same rows from the calculation and from the SQL in DuckDB.

Where a naive translation goes wrong

  • RAWSQL embeds source-dialect SQL; replace the template for the target database.

    Naive SQL

    SELECT amount AS result FROM input
    result
    12.8
    -7.6
    0
    25.3
    4.9
    -1.2
    9
    null

    Matches the calculation

    SELECT amount * 1.25 AS result FROM input
    result
    16
    -9.5
    0
    31.625
    6.125
    -1.5
    11.25
    null

Signature

RAWSQL_REAL(constant_sql, [argument, ...])