st.Bind(0,boardid);\r
st.Step();\r
\r
- st=m_db->Prepare("DELETE FROM tblMessage WHERE MessageUUID IN (SELECT MessageUUID FROM tblMessage INNER JOIN tblMessageBoard ON tblMessage.MessageID=tblMessageBoard.MessageID WHERE BoardID=?);");\r
+ st=m_db->Prepare("DELETE FROM tblMessage WHERE MessageUUID IN (SELECT MessageUUID FROM tblMessage INNER JOIN tblMessageBoard ON tblMessage.MessageID=tblMessageBoard.MessageID WHERE BoardID=? AND MessageUUID IS NOT NULL);");\r
st.Bind(0,boardid);\r
st.Step();\r
\r