将数据类型nvarchar转换为数字SQL时出错

Question

Run time error :

Error converting data type nvarchar to numeric

Query :

SELECT ISNULL(a.[BPOFmv], 0) AS BPOFmv FROM [MyTables] as a 

Records of a.[BPOFmv] column as shown below.

 $125,000 
 $145,000 
 209000 
 63,000

Question :

I think the issue here is $ mark.Can you tell me how to remove it ? I'm going to insert these values into decimal(18, 2) column.

Answer 1

You can use the REPLACE function

    SELECT ISNULL(REPLACE(REPLACE(a.[BPOFmv], '$',''),',',''), 0) AS BPOFmv 
FROM [MyTables]

You can CAST it into a format too if you wish

SELECT CAST(ISNULL(REPLACE(REPLACE(a.[BPOFmv], '$',''),',',''), 0) AS DECIMAL(18,2)) AS BPOFmv 
FROM [MyTables]