查看DB2执行计划
2019獨角獸企業重金招聘Python工程師標準>>>
[db2inst1@gzdbtsvr4 /home/db2inst1]#su - eser
eser's Password:?
$ cd /home/db2inst1/sqllib/bin
$ db2 conect to esnew
DB21034E ?The command was processed as an SQL statement because it was not a?
valid Command Line Processor command. ?During SQL processing it returned:
SQL1024N ?A database connection does not exist. ?SQLSTATE=08003
$ db2 connect to esnew
? ?Database Connection Information
?Database server ? ? ? ?= DB2/AIX64 10.5.8
?SQL authorization ID ? = ESER
?Local database alias ? = ESNEW
$ db2 set current explain mode explain
DB20000I ?The SQL command completed successfully.
$ db2 "select * from sysibm.sysdummy1"
SQL0217W ?The statement was not executed as only Explain information requests?
are being processed. ?SQLSTATE=01604
$ db2exfmt -d esnew -g TIC -w -l -s % -n % -o db2exmt.out
DB2 Universal Database Version 10.5, 5622-044 (c) Copyright IBM Corp. 1991, 2012
Licensed Material - Program Property of IBM
IBM DATABASE 2 Explain Table Format Tool
Connecting to the Database.
Connect to Database Successful.
Enter up to 26 character Explain timestamp (Default -1) ==>?
Enter section number (0 for all, Default 0) ==>?
Unable to open output file.
$ ls ~/jupiter/
ls: 0653-341 The file /home/eser/jupiter/ does not exist.
$ ls ~/
create_pro.sql ?tuning
$ db2exfmt -d esnew -g TIC -w -l -s % -n % -o ~/db2exmt.out
DB2 Universal Database Version 10.5, 5622-044 (c) Copyright IBM Corp. 1991, 2012
Licensed Material - Program Property of IBM
IBM DATABASE 2 Explain Table Format Tool
Connecting to the Database.
Connect to Database Successful.
Enter up to 26 character Explain timestamp (Default -1) ==>?
Enter section number (0 for all, Default 0) ==>?
Output is in /home/eser/db2exmt.out.
Executing Connect Reset -- Connect Reset was Successful.
$ more /home/eser/db2exmt.out
=======================================================
1.db2 conect to esnew
2.db2 set current explain mode explain
3.db2 "sql_statment"
4.db2exfmt -d esnew -g TIC -w -l -s % -n % -o ~/db2exmt.out
5. more /home/eser/db2exmt.out
轉載于:https://my.oschina.net/u/2277088/blog/3019113
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