SHELL和SQL：如何从SHELL传入变量到SQL

王朝mssql·作者佚名 2008-05-31

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我们经常有需要从SHELL里面传入参数，到Sqlplus里面执行命令。

比如我跑一个Top进程，看到某个进程非常消耗资源。

Code:

Oracle@main-db1$top

last pid:4327;load averages:1.81,2.13,2.11

536 processes: 534 sleeping, 2 on cpu

CPU states: % idle, % user, % kernel, % iowait, % swap

Memory: 12G real, 373M free, 6853M swap in use, 7235M swap free

PID USERNAME THR PRI NICESIZE RES STATETIMECPU COMMAND

26240 oracle 159-20 5592M 5569M sleep134:100.71% oracle

6219 oracle 159-20 5593M 5569M sleep 36:510.63% oracle

5717 oracle 259-20 5595M 5572M sleep 35.6H0.48% oracle

26314 oracle 159-20 5593M 5572M sleep 27.4H0.34% oracle

5553 oracle 159-20 5592M 5570M sleep910:480.33% oracle

22514 oracle 159-20 5592M 5569M sleep329:320.31% oracle

6229 oracle 159-20 5592M 5568M sleep 16:000.28% oracle

27995 oracle 159-20 5593M 5569M sleep7:460.28% oracle

17843 oracle 259-20 5595M 5572M sleep594:580.27% oracle

我想很快看到这个进程是什么，手工进入SQLPLUS，根据v$session, v$process一个一个join，非常麻烦。

最好能够从shell 里面直接输入spid,马上让我看到这个进程是什么，在干什么。

下面是我写的一个简单例子，

Code: [Copy to clipboard]

sqlplus /nolog <<EOF

connect / as sysdba

col machine format a30

col program format a40

set line 200

select sid,serial# ,username,osuser,machine,program,process,to_char(logon_time,'yyyy/mm/dd hh24:mi:ss')

from v\$session where paddr in

( select addr from v\$process where spid in($1));

select sql_text from v\$sqltext_with_newlines

where hash_value in

(select SQL_HASH_VALUE from v\$session where

paddr in (select addr from v\$process where spid=$1)

)

order by piece;

exit;

EOF

有了这个简单例子之后，我可以很方便，及时的看到这个进程在干什么：

Code: [Copy to clipboard]

oracle@main-db1$./whoisit.sh 26240

SQL*Plus: Release 8.1.7.0.0 - ProdUCtion on Sat Dec 14 15:19:55 2002

15:19:55 SQL Connected.

15:19:55 SQL 15:19:55 SQL 15:19:55 SQL 15:19:55 SQL 15:19:55 215:19:55 3

SIDSERIAL# USERNAME OSUSER MACHINEPROGRAMPROCESS TO_CHAR(LOGON_TIME,

---------- ---------- ------------------------------ ------------------------------ ------------------------------ ---------------------------------------- --------- -------------------

40462253APP1app1mid1?

@mid1 (TNS V1-V3)60952002/12/13 16:00:40

1 row selected.

Elapsed: 00:00:00.02

15:19:55 SQL 15:19:55 SQL 15:19:55 215:19:55 315:19:55 415:19:55 515:19:55 6

SQL_TEXT

----------------------------------------------------------------

SELECT * FROM RC_REQUESTCCPAYMENTWHERE UL_LOGINNAME = :b1A

ND RC_POSTDATE = TO_DATE(:b2,'YYYYMM')AND RC_POSTDATE < ADD_M

ONTHS(TO_DATE(:b2,'YYYYMM'),1)AND RC_STATUS < 3000 ORDER BY RC

_REQUESTCCPAYMENTID DESC

4 rows selected.

Elapsed: 00:00:00.01

15:19:55 SQL 15:19:55 SQL Disconnected from Oracle8i Enterprise Edition Release 8.1.7.2.0 - 64bit Production

With the Partitioning option

JServer Release 8.1.7.2.0 - 64bit Production