Contents
Why is there an unknown column in the field list?
The strangeness caused by “Unknown column ‘column-name’ in ‘field list'” message while this column was existing in this table. Our investigation shown that this was caused by trigger on the table they were trying to do the insert/update. This trigger did the insert to another table where the mentioned column didn’t exist.
Why is the post.id column not correct?
You’re saying that a post refers to user by using the post.id column. That can’t be correct, since id if the primary key of post. It’a also incorrect because you want a bidirectional OneToMany association, and the one-side must thus be the inverse side of the association.
Why are column names createdat and updatedat aliased?
But when you join, each column of the joined table will be aliased, which creates the following query: I got the same error when migrating our project from laravel to featherjs. Tables are having column names created_at, updated_at instead of createdat, updatedat.
What to do if column y is unknown in MySQL?
Try using different quotes for “y” as the identifier quote character is the backtick (“`”). Otherwise MySQL “thinks” that you point to a column named “y”. Enclose any string to be passed to the mysql server inside single quotes; e.g.:
Why are there no columns in MySQL field list?
My query was like: However, table1 did not have column2 column. In my case, the Hibernate was looking for columns in a snake case, like create_date, while the columns in the DB were in the camel case, e.g., createDate .
Why is there no column2 in Table1?
However, table1 did not have column2 column. In my case, the Hibernate was looking for columns in a snake case, like create_date, while the columns in the DB were in the camel case, e.g., createDate . Adding to the application.yml helped fix the problem.
Why is there a C column in the T2 table?
But in fact it’s complaining about `c` column in `t2` table because this query is running trigger and does insert into `t2` tables and its ` (a,b,c)` columns but the latter column doesn’t exist in `t2` table.
Why is there an unknown column name in MySQL?
You can add hex (column_name) in the select list of this last query and we’ll know what exactly the column name is. Then you can alter it to have only printable ascii characters. The problem may be that you had forgotten to execute a use ; statement, and consequently weren’t executing the insert in the correct database.
Is the column name in the CREATE TABLE the same as the update?
The column name in the CREATE TABLE and the UPDATE are not identical. They may look the same but there may be unprintable characters or they may have Unicode characters that look the same but are different code points. To find out, we can use this query: