SQL Oracle - 比较 DEV 和 TEST 之间的两个表模式（列数据类型和大小，而不是值）

Question

I would like to compare two tables DEV-TABLEA and QA-TABLEA in order to determine if there is any difference in datatypes, column lengths, or additional columns, here I am not concerned with the actual data; I would appreciate any help. thank you

Answer 1

As you do use SQL Developer (but reported that it didn't do what you wanted), then: are you using the latest version? Maybe yours doesn't do that correctly/completely. Because, on my 21.4.2, it works just fine.

For testing purposes, I created a test table in scott schemas in two different databases:

SQL> connect scott/tiger@db1
Connected.

SQL> create table test(id number, name varchar2(10));

Table created.

SQL> connect scott/tiger@db2
Connected.

SQL> create table test(id number, name varchar2(20), address varchar2(20));

Table created.

As you can see, table in db2 has modified name column length and additional ( address ) column.

Running Database Diff produces the following result (exclamation mark icons warn you that there are some issues there; I chose the test table):

Both name and address have been marked, so... it works OK (at least, I think so).