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问使用bash脚本创建短和长sqlplus连接的时间为X
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Stack Overflow用户

提问于 2019-11-26 07:18:38

回答 1查看 162关注 0票数 2

我需要使用sqlplus客户机与bash脚本创建一个短/长连接到oracle db，时间为10分钟(为了示例起见)，两者之间的区别如下：

长连接：

连接established

Every 5-10秒连接在10分钟结束时正在执行某种

查询，客户端被终止

。

短连接：

连接established

Doing a query

Connection是closed

repeat 10分钟的过程(连接打开和关闭，始终保持10个连接)

我有一个基线，我需要对上面提到的场景(两个不同的bash文件)进行调整：

#!/bin/sh
for i in $(seq 1 10);
do
   echo "CREATE TABLE oracle_BEQ_$i (id NUMBER NOT NULL);
   ! sleep 30
   select * from oracle_BEQ_$i ;
   ! sleep 30
   DROP TABLE oracle_BEQ_$i;" | sqlplus <user>/<password> &
done
wait

此脚本目前只执行以下操作：

1)创建10个连接(同时)

2)运行3个查询

3)当连接完成时，连接被关闭

对于我提到的两个场景，我需要做哪些调整？

linux

bash

oracle

shell

sqlplus

回答 1

Stack Overflow用户

发布于 2019-11-26 10:01:20

示例1.您可以在后台运行脚本pipe.sh。在另一个会话中，发送sql文件或sql。在运行sql后重新连接。

more pipe.sh

#!/bin/bash

rm /tmp/sqlplus_pipe.sql
mknod /tmp/sqlplus_pipe.sql p

while :
do

$ORACLE_HOME/bin/sqlplus   "system/manager" <<EOF
@/tmp/sqlplus_pipe.sql
EOF

sleep 1
done

在后台运行此脚本

   nohup ./pipe.sh  >pipe_log.log 2>&1  &

在其他bash会话中，您可以将sql文件或sql发送到此后台进程。

oracle@esmd:/tmp> cat test2.sql >>/tmp/sqlplus_pipe.sql
oracle@esmd:/tmp> cat test2.sql >>/tmp/sqlplus_pipe.sql

oracle@esmd:/tmp> echo "select to_char(sysdate,'DD-MM-YYYY HH24:MI:SS') from dual;" >>/tmp/sqlplus_pipe.sql
oracle@esmd:/tmp> echo "select to_char(sysdate,'DD-MM-YYYY HH24:MI:SS') from dual;" >>/tmp/sqlplus_pipe.sql


oracle@esmd:/tmp> more test2.sql
select to_char(sysdate,'DD-MM-YYYY HH24:MI:SS') from dual;



oracle@esmd:~> more pipe_log.log

SQL*Plus: Release 11.2.0.3.0 Production on Thu Aug 8 14:50:35 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Release 11.2.0.3.0 - 64bit Production

SQL>
TO_CHAR(SYSDATE,'DD
-------------------
08-08-2019 14:50:46

SQL> Disconnected from Oracle Database 11g Release 11.2.0.3.0 - 64bit Production

SQL*Plus: Release 11.2.0.3.0 Production on Thu Aug 8 14:50:47 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Release 11.2.0.3.0 - 64bit Production

SQL>
TO_CHAR(SYSDATE,'DD
-------------------
08-08-2019 14:50:48

SQL> Disconnected from Oracle Database 11g Release 11.2.0.3.0 - 64bit Production

SQL*Plus: Release 11.2.0.3.0 Production on Thu Aug 8 14:50:49 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Release 11.2.0.3.0 - 64bit Production

SQL>
TO_CHAR(SYSDATE,'DD
-------------------
08-08-2019 14:50:49

SQL> Disconnected from Oracle Database 11g Release 11.2.0.3.0 - 64bit Production

更新。示例2.您可以在Oracle数据库服务器的后台运行脚本pipev2.sh。在另一个会话中，发送sql文件或sql。在运行sql之后，不需要重新连接。

 nohup ./pipev2.sh >output.log 2>&1 &

#!/bin/bash

rm /home/trs/db2Toora/sql/sqlplus_pipe.sql
mknod /home/trs/db2Toora/sql/sqlplus_pipe.sql p


$ORACLE_HOME/bin/sqlplus   "system/manager" <<EOF
SET SERVEROUTPUT ON 
    BEGIN
      RUN_SQL;
    END;
/
EOF


CREATE OR REPLACE DIRECTORY TEMP_DIR_CHANGE AS '/home/trs/db2Toora/sql'
/
GRANT READ ON DIRECTORY TEMP_DIR_CHANGE TO SYSTEM
/
GRANT WRITE ON DIRECTORY TEMP_DIR_CHANGE TO SYSTEM
/


    CREATE OR REPALCE PROCEDURE RUN_SQL

is
    sql_text VARCHAR2(2000);
    file_sql_name VARCHAR2(100):='sqlplus_pipe.sql';
    sql_delimiter VARCHAR2(1):=';';
    stop_script VARCHAR2(10):='%QUIT%';
    sql_output VARCHAR2(2000);
    InFile           utl_file.file_type;
    vNewLine         VARCHAR2(4000);
    k  pls_integer :=0;
    BEGIN
    dbms_output.enable;
    while k <>1
    loop
    InFile := utl_file.fopen('TEMP_DIR_CHANGE', file_sql_name,'r');

    LOOP
      BEGIN

      utl_file.get_line(InFile, vNewLine);

      if vNewLine like '%'||sql_delimiter||'%' then
         sql_text:=sql_text||vNewLine;
      dbms_output.put_line(sql_text);
       begin

        execute immediate replace(sql_text,sql_delimiter,'' ) into sql_output;

        EXCEPTION
        WHEN OTHERS THEN
        dbms_output.put_line('!---!--Error--!---!');
        dbms_output.put_line(substr(sqlerrm, 1, 500));
       end;
      dbms_output.put_line(sql_output);
      dbms_output.put_line('---------------------------------------------------------------');
      sql_text:='';
      elsif vNewLine like  stop_script then
      dbms_output.put_line('---!--QUIT--!---');
      EXIT;
      else
      sql_text:=sql_text||vNewLine;
      end if;

      EXCEPTION
        WHEN NO_DATA_FOUND THEN
        EXIT;
      END;


    END LOOP;
      if vNewLine like stop_script then
       exit;
      end if;

end loop;

    utl_file.fclose(InFile);

    END;

测试

oracle@esmd:/home/trs/db2Toora/sql> cat test2.sql >sqlplus_pipe.sql
oracle@esmd:/home/trs/db2Toora/sql> cat test2.sql >sqlplus_pipe.sql
oracle@esmd:/home/trs/db2Toora/sql> cat test2.sql >sqlplus_pipe.sql
oracle@esmd:/home/trs/db2Toora/sql> cat test2.sql >sqlplus_pipe.sql
oracle@esmd:/home/trs/db2Toora/sql> cat test2.sql >sqlplus_pipe.sql
oracle@esmd:/home/trs/db2Toora/sql> cat test2.sql >sqlplus_pipe.sql
oracle@esmd:/home/trs/db2Toora/sql> cat test2.sql >sqlplus_pipe.sql
oracle@esmd:/home/trs/db2Toora/sql> cat test2.sql >sqlplus_pipe.sql
oracle@esmd:/home/trs/db2Toora/sql> cat test2.sql >sqlplus_pipe.sql
oracle@esmd:/home/trs/db2Toora/sql> cat test2.sql >sqlplus_pipe.sql
oracle@esmd:/home/trs/db2Toora/sql> cat test2.sql >sqlplus_pipe.sql
oracle@esmd:/home/trs/db2Toora/sql> cat test2.sql >sqlplus_pipe.sql
oracle@esmd:/home/trs/db2Toora/sql> echo 'QUIT'  >sqlplus_pipe.sql
oracle@esmd:/home/trs/db2Toora/sql>


oracle@esmd:/home/trs/db2Toora/sql> more test2.sql
select to_char(sysdate,'DD-MM-YYYY HH24:MI:SS')
from dual
;
select to_char(sysdate,'DD-MM-YYYY HH24:MI')
from dual
;


nohup: ignoring input

SQL*Plus: Release 11.2.0.3.0 Production on Tue Aug 13 10:11:23 2019

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Release 11.2.0.3.0 - 64bit Production

SQL> SQL>   2    3    4  select to_char(sysdate,'DD-MM-YYYY HH24:MI:SS')  from dual;
13-08-2019 10:11:34
---------------------------------------------------------------
select to_char(sysdate,'DD-MM-YYYY HH24:MI')  from dual;
13-08-2019 10:11
---------------------------------------------------------------
select to_char(sysdate,'DD-MM-YYYY HH24:MI:SS')  from dual;
13-08-2019 10:11:35
---------------------------------------------------------------
select to_char(sysdate,'DD-MM-YYYY HH24:MI')  from dual;
13-08-2019 10:11
---------------------------------------------------------------
select to_char(sysdate,'DD-MM-YYYY HH24:MI:SS')  from dual;
13-08-2019 10:11:35
---------------------------------------------------------------
select to_char(sysdate,'DD-MM-YYYY HH24:MI')  from dual;
13-08-2019 10:11
---------------------------------------------------------------
select to_char(sysdate,'DD-MM-YYYY HH24:MI:SS')  from dual;
13-08-2019 10:11:36
---------------------------------------------------------------
select to_char(sysdate,'DD-MM-YYYY HH24:MI')  from dual;
13-08-2019 10:11
---------------------------------------------------------------
select to_char(sysdate,'DD-MM-YYYY HH24:MI:SS')  from dual;
13-08-2019 10:11:36
---------------------------------------------------------------
select to_char(sysdate,'DD-MM-YYYY HH24:MI')  from dual;
13-08-2019 10:11
---------------------------------------------------------------
select to_char(sysdate,'DD-MM-YYYY HH24:MI:SS')  from dual;
13-08-2019 10:11:37
---------------------------------------------------------------
select to_char(sysdate,'DD-MM-YYYY HH24:MI')  from dual;
13-08-2019 12:19
---------------------------------------------------------------
---!--QUIT--!---

PL/SQL procedure successfully completed.

SQL> Disconnected from Oracle Database 11g Release 11.2.0.3.0 - 64bit Production

票数 1

页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://stackoverflow.com/questions/59045640

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