MySQL code: select isnull(mycolumn) from mytable returns 1 if mycolumn is null. – Eric Leschinski. Sep 15 '14 at 13:39. 2. ... <看更多>

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It actually doesn't accept NULL values it considers it as empty string. That's because you have your server in non-strict mode. That controls how MySQL ... ... <看更多>

MySQL NULL VALUE. NULL值是在新增資料時沒有設定欄位值，資料庫管理系統便設定該欄位的內容為NULL. 無法使用; 無法指派; 無法運算; 與0和空白不相同 ... ... <看更多>

It's almost as if MySQL returns a blank row to my app, but a proper result set for MySQL Workbench (same exact query). ... <看更多>