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すべてのユーザーテーブルを切り捨てる方法は？

Oracleのすべてのユーザーテーブルを切り捨てるにはどうすればよいですか？テーブルの制約に問題があります。

oracleconstraintstruncate
12
szaman
declare

begin

for c1 in (select table_name, constraint_name from user_constraints) loop
    begin
        execute immediate ('alter table '||c1.table_name||' disable constraint '||c1.constraint_name);
    end;
end loop;

for t1 in (select table_name from user_tables) loop
    begin
        execute immediate ('truncate table '||t1.table_name);
    end;
end loop;

for c2 in (select table_name, constraint_name from user_constraints) loop
    begin
        execute immediate ('alter table '||c2.table_name||' enable constraint '||c2.constraint_name);
    end;
end loop;

end;
/
7
dgt

依存関係が存在するために制約を削除できない場合（この制約に依存する外部キーの形式-ORA-02297）、およびすべての（無効化、切り捨て、有効化）ステートメントを出力することにより、上記のスクリプトを改善しました。

set serveroutput on;

declare

begin

for c1 in (select y1.table_name, y1.constraint_name from user_constraints y1, user_tables x1 where x1.table_name = y1.table_name order by y1.r_constraint_name nulls last) loop
    begin
        dbms_output.put_line('alter table '||c1.table_name||' disable constraint '||c1.constraint_name || ';');
        execute immediate  ('alter table '||c1.table_name||' disable constraint '||c1.constraint_name);
    end;
end loop;

for t1 in (select table_name from user_tables) loop
    begin
        dbms_output.put_line('truncate table '||t1.table_name || ';');    
        execute immediate ('truncate table '||t1.table_name);
    end;
end loop;

for c2 in (select y2.table_name, y2.constraint_name from user_constraints y2, user_tables x2 where x2.table_name = y2.table_name order by y2.r_constraint_name nulls first) loop
    begin
        dbms_output.put_line('alter table '||c2.table_name||' enable constraint '||c2.constraint_name || ';');        
        execute immediate ('alter table '||c2.table_name||' enable constraint '||c2.constraint_name);
    end;
end loop;

end;
6
Volker

上記のスクリプトを失敗させる特別な制約がある場合の改善：

set serveroutput on;

declare

begin

for c1 in (select y.table_name, y.constraint_name from user_constraints y, user_tables x where x.table_name = y.table_name) loop
    begin
        dbms_output.put_line('alter table '||c1.table_name||' disable constraint '||c1.constraint_name || ';');
        execute immediate  ('alter table '||c1.table_name||' disable constraint '||c1.constraint_name);
    end;
end loop;

for t1 in (select table_name from user_tables) loop
    begin
        execute immediate ('truncate table '||t1.table_name);
    end;
end loop;

for c2 in (select table_name, constraint_name from user_constraints) loop
    begin
        execute immediate ('alter table '||c2.table_name||' enable constraint '||c2.constraint_name);
    end;
end loop;

end;
/
2
Ernst

変数は必要ありません

begin
  for r in (select table_name from user_tables) loop
    execute immediate 'truncate table ' || r.table_name;
  end loop;
end;

よろしくK

0
Khb