linux - 使用Bash脚本在X时间内创建短和长的sqlplus连接

标签 linux bash oracle shell sqlplus

我需要使用sqlplus客户端和bash脚本创建与Oracle db的短/长连接10分钟(出于示例目的)，两者之间的区别如下:

长连接:

  • 已建立连接
  • 每5到10秒，连接就会执行某种
    • 查询
  • 在10分钟结束时，客户端终止

    • 短连接:
  • 建立的连接
  • 进行查询
  • 连接已关闭
  • 重复该过程10分钟(连接打开和关闭，一直保持10个连接)

    • 我有一个基准，我需要针对上述情况(2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

    该脚本当前仅执行以下操作:

    1)创建10个连接(同时)

    2)运行3个查询

    3)完成后，关闭连接

    对于上述2种情况，我需要进行哪些调整？

    最佳答案

    示例1.
    您可以在后台运行脚本pipe.sh。然后在另一个 session 中，发送sql文件或sql。与重新连接后运行sql。

    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backgroud中运行此脚本
       nohup ./pipe.sh  >pipe_log.log 2>&1  &

    在其他bash session 中，您可以将sql文件或sql发送到此背景进程。
    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。然后在另一个 session 中，发送sql文件或sql。运行sql后无需重新连接。
     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

    关于linux - 使用Bash脚本在X时间内创建短和长的sqlplus连接，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/59045640/

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