Question

是否可以将一个表的列命名为与记录相同的列创建第一个表时另一个表的列？

实施例

table1: test1 
id package1 package2 package3--->column names same as the records of another table


table 2: test2
 name --->column
 package1 --->record1 under name column
 package2 --->record2 under name column
 package3 --->record3 under name column

Answer 1

我会通过动态SQL这样做：

-- Contains table definitions
create table table_def
(
  name varchar2(100) not null,
  col1 varchar2(100) not null,
  col2 varchar2(100) not null,
  col3 varchar2(100) not null,
  col4 varchar2(100) not null
);

-- PK to be sure all table names are different
alter table table_def add constraint table_defs_pk primary key (name);

insert into table_def values('test1', 'id', 'package1', 'package2', 'package3');
insert into table_def values('test2', 'name', 'package1', 'package2', 'package3');

-- Loop on table definitions to create tables
declare
  myQuery varchar2(1000);
begin
  for line in
  (
    select * from table_def
  )
  loop
    myQuery := 'create table ' || line.name || ' ('
                      || line.col1 || ' varchar2(100), '
                      || line.col2 || ' varchar2(100), '
                      || line.col3 || ' varchar2(100), '
                      || line.col4 || ' varchar2(100))';
    dbms_output.put_line(myQuery);
    execute immediate myQuery;
  end loop;
end;
/

如何将列命名为与oracle中另一个表的列的记录相同

1 个答案: