SQL脚本执行控制

Question

我正在寻找如何控制大型 SQL 脚本的执行的技巧。它将包含各种DDL和DML语句。我主要是在寻找 DDL 控制。我真正的意思是，基本上我有一个脚本，其中包含从我们的数据库之一生成的多个 DDL 语句。当我启动脚本时，即使存在编译错误或创建错误，它也会执行。 感谢任何想法

Answer 1

出现错误后要退出吗？这里有几个例子。请务必检查每当 SQLERROR。

DDL (DML) 示例：

prompt continues after error
prompt =====================
prompt

create table foo;

prompt quits after error with error code 
prompt =================================
prompt

whenever sqlerror exit sql.sqlcode

create table foo;

prompt never gets here
prompt ===============
prompt

quit

PL/SQL 子程序引发异常：

create or replace function foo return number as
  foo_error exception;
begin
  raise foo_error;
end;
/
show errors

prompt continues after error
prompt =====================
prompt

select foo from dual;

prompt quits after error with error code 
prompt =================================
prompt

whenever sqlerror exit sql.sqlcode

select foo from dual;

prompt never gets here
prompt ===============
prompt

quit

PL/SQL 单元编译失败：

create or replace procedure compile_function (f in varchar2) as
begin
  execute immediate 'alter function :f compile' using f;
exception
  when others then
    raise_application_error(-20000, 'Failed to compile function ' || f);
end;
/
show errors

prompt continues after error
prompt =====================
prompt

create or replace function foo return number as
begin
  compilation will fail
end;
/
show errors

exec compile_function('foo')

prompt quits after error with error code 
prompt =================================
prompt

whenever sqlerror exit sql.sqlcode

create or replace function foo return number as
begin
  compilation will fail
end;
/
show errors

exec compile_function('foo')

prompt never gets here
prompt ===============
prompt

quit