在 DB2 上运行的 Moodle 2 安装中,删除用户不成功,返回从数据库读取的错误:
调试信息:[IBM][CLI Driver][DB2/LINUXX8664] SQL0206N“USERIDFROM”在使用它的上下文中无效。SQLSTATE=42703 SQLCODE=-206 SELECT * FROM mdl_message WHERE useridfrom = ? ORDER BY timecreated
[array ( 0 => '28521', )]
SQL0206N的错误描述很清楚,但是useridfrom
是一列mdl_message
:
$ db2 describe table mdl_message
Data type Column
Column name schema Data type name Length Scale Nulls
------------------------- --------- ------------------- ---------- ----- ------
ID SYSIBM BIGINT 8 0 No
USERIDFROM SYSIBM BIGINT 8 0 No
USERIDTO SYSIBM BIGINT 8 0 No
SUBJECT SYSIBM VARCHAR 200 0 Yes
FULLMESSAGE SYSIBM VARCHAR 200 0 Yes
FULLMESSAGEFORMAT SYSIBM SMALLINT 2 0 Yes
FULLMESSAGEHTML SYSIBM VARCHAR 100 0 Yes
SMALLMESSAGE SYSIBM VARCHAR 200 0 Yes
NOTIFICATION SYSIBM SMALLINT 2 0 Yes
CONTEXTURL SYSIBM VARCHAR 200 0 Yes
CONTEXTURLNAME SYSIBM VARCHAR 200 0 Yes
TIMECREATED SYSIBM BIGINT 8 0 No
12 record(s) selected.
还有什么可能导致此错误?