MySQL-将具有不同行值的行列值从一个表复制到另一张表（2次）

Question

I have been trying this query but its giving me an error. I believe the query is right, but i 'm not getting the desired result as i wanted. Any inputs or guidance would be greatly appreciated. The following queries work only if i run the first query, but when i run the first and second query, it gives me error!

queries:
insert into user_tbl(firstname, lastname, location) 
select `fname`, `lname`, `location` from temp_tbl

insert into user_tbl(location) 
select `location2`from ok

If i run the first query, it copies from temp_tbl to user_tbl without any error

Only first query output!
--------------------------------
firstname, lastname, location
john       doe        New York
jane       doe        Mexico

This is my desired output:

user_tbl:
--------------------------------
firstname, lastname, location
john       doe        New York
                      Manhattan
jane       doe        Mexico
                      Bahamas

I don't know if there's any other query im missing here, but the query above is what i've come up with. So, basically what i want is whenever a single row columns values from temp_table table to user_tbl table is copied, i want a new row inserted for that same row.

Thanks in advance

Answer 1

why would you insert a row with no first and last name? I don't think you've architected correctly. as far as reasons it failed, what is the error? are the the first and lastname required fields maybe?

Answer 2

You should verify if the attributes "firstname" and "lastname" in the table user_tbl can accept null value. If these attributes are not null it is normal that you have an error when you try to insert only "location" in this table.