Through the schema, a validating parser can verify that the element InvoiceNo is a positive integer and the element ProductID consists of one letter between A and Z followed by six digits. 通过模式,验证解析器可以检查元素InvoiceNo是否是正整数,元素ProductID的首字符是否为A到Z之间的字母,后面为六个阿拉伯数字。
Make the updates to the columns listed where the id column value of the uigr_visuals table equals the value of the text Form Field "Form. productid". 对列出的那些列进行更新,在这些列中,uigrvisuals表的id列的值等于文本FormField“Form.productid”的值。
The for clause binds variable$ p to each of these ProductID values in turn. for子句依次将变量$p绑定到每个ProductID值。