我是编写SQL加脚本的新手,我有一个问题。我想为我的PL / SQL实用程序编写安装脚本,该实用程序向用户询问一些问题(通过ACCEPT命令),然后列出将要执行的操作(通过PROMPT)并要求确认(再次通过ACCEPT)。这部分没问题,但是我遇到问题,如果他拒绝接受或者再问他所有问题,我需要运行一些PL / SQL脚本。是在SQL加上任何选项如何做一个交互式循环,根据变量内容决定是继续运行PL / SQL脚本还是循环回循环开始?
伪代码中的我想要这样的东西:
while ('&confirmation' != 'y'){
/*ask some questions*/
ACCEPT info_1 CHAR PROMPT 'text_1';
ACCEPT info_2 CHAR PROMPT 'text_2';
...
/*write some summary*/
PROMPT 'text_2';
/*ask for confirmation */
ACCEPT confirmation CHAR PROMPT 'are these information correct? (y/n)';
}
@skript
由于
答案 0 :(得分:2)
<强> input.sql 强>
accept username char prompt "username: "
accept password char prompt "password: "
prompt
prompt &username
prompt &password
prompt
prompt
accept confirm char prompt "correct? (y|n): "
column col noprint new_value runscript
select
decode(lower('&confirm'),
'y', 'task.sql',
'n', 'input.sql') col
from dual;
prompt &runscript
@&runscript
<强> task.sql 强>
prompt run my tasks with &username and &password in place
<强>测试强>
me@XE> @input
username: a
password: b
a
b
correct? (y|n): y
old 2: decode(lower('&confirm'),
new 2: decode(lower('y'),
task.sql
run my tasks with a and b in place
me@XE> @input
username: a
password: b
a
b
correct? (y|n): n
old 2: decode(lower('&confirm'),
new 2: decode(lower('n'),
input.sql
username: etc...