转换varchar值时转换失败＆＃39; Debit＆gt; 0＆＃39;到数据类型int

Question

DECLARE @strCrDr VARCHAR(50) = '';
SET @strCrDr = 'Debit > 0'; 

SELECT *
FROM dbo.Trn_Jounal_Entery
WHERE 1 = 1 + @strCrDr;