Question

我的sql需要帮助有问题。我的原始代码：

DECLARE
    TYPE RecordTyp IS RECORD (v_vendor_name    vendorinvoices.vendor_name%TYPE,
    v_invoice_total   vendorinvoices.invoice_total%TYPE,
    v_invoice_due_date  vendorinvoices.invoice_due_date%TYPE
    );
    rec1 RecordTyp; 
BEGIN
    select vendor_name,invoice_total,to_char(invoice_due_date,'fmMONTH DD YYYY') into rec1
    from VendorInvoices     
    where Percentage(invoice_total,total_invoice_amount) > 70 order by vendor_name ; 
END; 
/

我收到错误＆＃34;确切的提取返回超过请求的行数＆＃34;。因此，我通过以下方式修复了它：

DECLARE
    TYPE RecordTyp IS RECORD (v_vendor_name    vendorinvoices.vendor_name%TYPE,
    v_invoice_total   vendorinvoices.invoice_total%TYPE,
    v_invoice_due_date  vendorinvoices.invoice_due_date%TYPE
    );   
    rec1 RecordTyp; 
BEGIN   
for rec in (
    select vendor_name,invoice_total,to_char(invoice_due_date,'fmMONTH DD YYYY') into rec1
    from VendorInvoices     
    where Percentage(invoice_total,total_invoice_amount) > 70 order by vendor_name )   
loop
    DBMS_OUTPUT.PUT_LINE(RPAD(rec1.v_VENDOR_NAME,35) || RPAD(rec1.v_invoice_total,35) || RPAD(rec1.v_invoice_due_date,35) );   
end loop; 
END; 
/

但是，我不知道如何显示选择语句的结果，或者我不知道我是否修正了。我只收到一条消息，＆＃34;完成匿名阻止＆＃34;甚至认为我的DBMS输出已打开。

请帮助我如何显示结果或告诉我是否正确/错误！ P / S：我可以使用CURSOR，但要求要求将select语句放在BEGIN ... END

之间

谢谢，

错误：＆＃34;确切的提取返回的次数多于请求的行数＆＃34;

0 个答案: