How I can fix the following error in SQL statement

Question

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SQL

IF
(SELECT T0.[Price] FROM ITM1 T0  INNER JOIN OPLN T1 ON T0.PriceList = T1.ListNum WHERE T1.[ListName] = $[RDR1.U_SBO_PriceList]
and  T0.[ItemCode] = $[RDR1.ItemCode]) > $[RDR1.PriceBefDi]

BEGIN
(SELECT T0.[Price] FROM ITM1 T0  INNER JOIN OPLN T1 ON T0.PriceList = T1.ListNum WHERE T1.[ListName] = $[RDR1.U_SBO_PriceList]
and  T0.[ItemCode] = $[RDR1.ItemCode])
END

ERROR:

[Microsoft][ODBC Driver 13 for SQL Server][SQL Server]Error converting data type nvarchar to numeric.  '' (RDR1)

What I have tried:

I tried to compare two prices, the price in the Sales document and the price in the PriceList and choose the greater one.

Posted 26-Oct-23 2:11am

Ahmed Said Oct2023

Updated 27-Oct-23 5:05am

Deeksha Shenoy

v3

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Richard MacCutchan 26-Oct-23 9:22am

One of the prices is stroed as a nvarchar type instead of a numberic.

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Pete O'Hanlon · Answer 1 · 2023-10-26T02:47:00

Without knowing the data types of the different fields in your query, this is impossible to answer. What we do know is that one of your fields is a string (NVARCHAR), and you are trying to treat it as a number. Take a look at the types of your fields and use that to work out which one is the problem.