Select "title" in the table, and in the property grid change "NullValue" to "(empty)" - that is, treat the title as the empty string whenever no data exists for it, instead of throwing an exception.
在Datatable中选中“title”，在属性栏里将“NullValue”的值更改为“(Empty)”-这样做是为了在没有与“title”对应的数据时，把title做为一个空字符串来对待，以此替换抛出异常。
Thus the UPDATE fails to find the specified row. A message "SQL0100W No row was found for FETCH, UPDATE or DELETE; or the result of a query is an empty table.
因此UPDATE无法找到指定的行，返回消息 “SQL0100W NorowwasfoundforFETCH, UPDATEorDELETE; ortheresultof aqueryisan empty table.
Thus the UPDATE fails to find the specified row. A message "SQL0100W No row was found for FETCH, UPDATE or DELETE; or the result of a query is an empty table.
因此UPDATE无法找到指定的行，返回消息 “SQL0100W NorowwasfoundforFETCH, UPDATEorDELETE; ortheresultof aqueryisan empty table.
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