Unix Shell脚本并行运行SQL脚本 [英] Unix shell script run SQL scripts in parallel

问题描述

在完成tst1.sql之后，如何设置此KornShell(ksh)脚本在 parallel 中运行SQL脚本2,3，然后在完成2,3之后运行tst4.sql?这可能吗?

How do I setup this KornShell (ksh) script to run SQL scripts 2,3 in parallel after tst1.sql is done then run tst4.sql after 2,3 are complete? Is this possible?

#/usr/bin/ksh
#SET ENVIRONMENT ORACLE

sqlplus user1/pw @/home/scripts/tst1.sql
sqlplus user1/pw @/home/scripts/tst2.sql
sqlplus user1/pw @/home/scripts/tst3.sql
sqlplus user1/pw @/home/scripts/tst4.sql
exit 0

推荐答案

第一个命令应同步运行...

The first command should run synchronously...

如果您将最后两个命令作为后台进程启动(在命令末尾添加& amp;)，则它们将并行运行.

If you start the two last commands as background processes (add & at the end of the command), they will run in parallel.

您是否要让脚本在离开之前等待最后两个进程完成?

Do you want the script to wait for the two last processes to be complete before leaving?

类似的事情应该起作用:

Something like this should work:

  sqlplus user1/pw @/home/scripts/tst1.sql
  sqlplus user1/pw @/home/scripts/tst2.sql &
  pid2=$!
  sqlplus user1/pw @/home/scripts/tst3.sql &
  pid3=$!
  # pseudo-code:
  # while (`ps -p"$pid2,$pid3" | wc -l` != "1");
  sqlplus user1/pw @/home/scripts/tst4.sql

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