SQL Server数值类型转换中的错误转换

Question

INSERT INTO PERINDSTDEQU (PST_DATDEB, PST_DATFIN, PDT_DATDEB, PDT_DATFIN, PID_NUMEQU, PST_CODLON)       
    SELECT @PST_DATDEB, @PST_DATFIN, @PDT_DATDEB, @PDT_DATFIN, ID_NUMEQU, ST_CODLON 
    FROM EQU 
    WHERE ST_ANA='O' and ST_INA='N'