emmm...虽然这个问题以前遇到很多遍了，而我只是想教你用下Google翻译能解决很多问题 ...
解决:这里的id字段是表的主键,查看别人的经验贴得知是语法错误,参考链接https://stackoverflow.com/questions/19205004/key-emp-no-doesnt-exist-in-table-employees ,当强制索引是主键时sql语句应这样写 mysql> SELECT COUNT(UA.id) AS tp_count FROM ck_user_audit UA RIGHT JOIN ck_user AS U force index(...
I am doing an Idoc to JDBC scenario . In my database table i have defined primary key constraint for coln 'Userid' and have used the same coln as key in Design. When iam testing , I am getting the err : Column 'key' does not exist in table in RWB. Thanks, LaawanyaKnow the ans...
When I callAutoMigrateon this it throws the error:error='Error 1072: Key column 'id' doesn't exist in table'. It seems like I have anidcolumn in both the table i'm trying to create as well as child tables that it references - why would it be saying it doesn't exist?
哥们，你的userlist表都没有agentnumber这个字段；
However, in the ConditionalWeakTable<TKey,TValue> class, adding a key/value pair to the table does not ensure that the key will persist, even if it can be reached directly from a value stored in the table (for example, if the table contains one key, A, with a value V1, and a ...
Type: TKey The key to search for. key represents the object to which the property is attached. Return Value Type: TValue The value that corresponds to key, if key already exists in the table; otherwise, a new value created by the default constructor of the class defined by th...
In other words, you can have a FK with two columns referencing a primary key or uniqueness constraint on another table—as long as the referenced table's key also has two columns, and provided the data types match up. The actual column names don't need to match, as long as you ...
DTS_E_BITASK_CANNOT_RETRIEVE_COLUMN_INFO 欄位 DTS_E_BITASK_CANNOT_RETRIEVE_TABLES 欄位 DTS_E_BITASK_CANNOTRETAINCONNINTRANSACTION 欄位 DTS_E_BITASK_DATA_FILE_NOT_SPECIFIED 欄位 DTS_E_BITASK_DESTINATION_TABLE_NOT_SPECIFIED 欄位 DTS_E_BITASK_ERROR_IN_DB_OPERATION 欄位 DTS_E_BITASK_ERRO...
Starting in version 5.0 the information_schema database of system views can be used to find out which columns are auto_increment: SELECT table_schema, table_name, column_name, extra FROM information_schema.columns WHERE extra LIKE '%auto_increment%'; There is no practical limit to the...