[英]how to passing variable from bash to sqlplus
I have below code in bash: 我在bash中有以下代码:
#/!bin/bash
USERS=tom1,tom2,tom3
and I want to drop all users from my variable "USERS" via sqlplus 我想通过sqlplus从变量“ USERS”中删除所有用户
#/!bin/bash
USERS=tom1,tom2,tom3
sqlplus -s system/*** <<EOF
*some code*
DROP USER tom1 CASCADE;
DROP USER tom2 CASCADE;
DROP USER tom2 CASCADE;
EOF
pls help 请帮助
Splitting in database using sql / plsql by using the USERS
variable is complex and requires understanding of REGEXP
functions and I will not recommend that to you. 使用
USERS
变量使用sql / plsql在数据库中进行拆分很复杂,并且需要了解REGEXP
函数,因此我不建议您这样做。 Moreover, it would also require Dynamic Sql to execute a drop
query. 而且,它还需要Dynamic Sql来执行
drop
查询。
I would suggest you to split it within the shell script,create a script and execute it in sqlplus 我建议您在shell脚本中拆分它,创建一个脚本并在sqlplus中执行它
USERS="tom1,tom2,tom3"
echo ${USERS} | tr ',' '\n' | while read word; do
echo "drop user $word;"
done >drop_users.sql
sqlplus -s system/pwd <<EOF
#some code
@drop_users.sql
EOF
Your code is OK except for DDL commands for Oracle DB which are derived from USERS
parameter of the script file, call userDrop.sh
. 您的代码正常,
userDrop.sh
脚本文件的USERS
参数派生的Oracle DB的DDL命令调用userDrop.sh
。 To make suitable relation with USERS
parameter and DB
, an extra file ( drpUsr.sql
) should be produced, and invoked inside EOF
tags with an @
sign prefixing. 为了与
USERS
参数和DB
建立适当的关系,应生成一个额外的文件( drpUsr.sql
),并在带有@
符号前缀的EOF
标记内调用该文件。
Let's edit by vi
command : 让我们用
vi
命令编辑:
$ vi userDrop.sh
#!/bin/bash
USERS=tom1,tom2,tom3
IFS=',' read -ra usr <<< "$USERS" #--here IFS(internal field separator) is ','
for i in "${usr[@]}"; do
echo "drop user "$i" cascade;"
done > drpUsr.sql
#--to drop a user a privileged user sys or system needed.
sqlplus / as sysdba <<EOF
@drpUsr.sql;
exit;
EOF
Call as 称为
$ . userDrop.sh
and do not forget to come back to command prompt by an exit
command of DB. 并且不要忘记通过DB的
exit
命令返回到命令提示符。
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