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Revision as of 21:23, 15 December 2020
Contents
Presentation
Script $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh :
update index Statistics
use the command 'update index Statistics $lvsqw_Owner.$lvsqw_Table'
compute Statistics on all indexed columns
you can also force delete with 'delete Statistics $lvsqw_Owner.$lvsqw_Table'
dynamically calculates a sample to put option 'with sampling=$lvsqw_SamplePct percent'
Online help
The online help is available for most scripts with the -h option.
Ex: $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -h
Content of this assistance :
Sourcing sqwsyb_Global.lib v2024.07 SQWareProduction for Sybase (dbSQWare) ... Usage: sqwsyb_UpdtStatsDatabase.ksh [-h] -I <dataserver> [+ options] DESCRIPTION sqwsyb_UpdtStatsDatabase.ksh 'update index statistics table' for all tables SUPPORT Sybase supported versions: 15 <= v <= 16.0 PARAMETERS -I dataserver : Target dataserver. -D database : Database name. OPTIONS -h : Display the full usage. -s : Display samples of usage. -IT listtables : List of tables to run update statistics on (by default all). -ET listtables : Tables list to exclude. -IL likeclause : Like clause to generate tables list (example: 'tbl%'). -EL likeclause : Like clause to exclude tables (example: 'notbl%'). -WCT whereclause : Where clause to generate tables list. -FSS SampleSize : To force sample size. -Del : Delete stats before compute. -NoMail : Deactivate sendmail on error pmexpdba@gmail.com (by default, send on error). -FRT code : Force return code value on error. -Dist : For distant connection to database (change $gvsqw_DbaUser to $gvsqw_DistDbaUser ). -Type type : Type of statistics 'default','index','table','all' (by default index). -AddMail email : Email address to add at 'pmexpdba@gmail.com'. -SendReport : Send execution log report. -SizeMaxTable Size : Take into account tables <= $lvsqw_SizeMaxTable Mb (by default, 1000000 Mb). -MinPctChange pct : Min pct change to take table into account (by default, datachange>=10). -Hashing : Enable hashing (when rowcount >= 1000000) when ASE version >= 15.7 ESD#2 or SP50 (by default, False). -NoHashing : Disable hashing. -HashSize Size : Minimum rowcount for hashing (by default, 1000000). -Locale locale : Force Locale for help display (fr,en). -Exec : Run update statistics (by default, display generated commands).
Error management
Errors passing arguments
This type of message is generated:
Lack 'dataserver' parameter, Usage: sqwsyb_UpdtStatsDatabase.ksh [-h] -I <dataserver> [+ options] For full help : sqwsyb_UpdtStatsDatabase.ksh -h
If you are connecting through a terminal, no mail will be sent and you will have more this kind of message:
Begining : 2020-12-15 21:22:47 End : 2020-12-15 21:22:47 Duration : 00:00:00
If you are not connected to a terminal, the error message appears and is sent by mail to the address contained in the variable $gvsqw_GlobalMail (See help customize this variable). The subject line will always start by "$gvsqw_MailMsg_sybase : " (See help customize this variable).
Execution errors
Whether you are or not connected to a terminal, the error message appears and an email containing a summary of treatment errors is sent to the address contained in the variable $gvsqw_Mail_sybase (See help customize this variable). The subject line will always start by "$gvsqw_MailMsg_sybase : " (See help customize this variable).
Usage examples
Sourcing sqwsyb_Global.lib v2024.07 SQWareProduction for Sybase (dbSQWare) ... #Standard help for script sqwsyb_UpdtStatsDatabase.ksh: $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -h #Display online help for this script $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -Locale en -h #Display online help for this script with forcing of the 'en' locale (by default locale managed by $gvsqw_Locale) $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -s #Display usage examples for this script $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -I $DSQUERY -D <DbName> #Generate commands but don't execute them ! $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -I $DSQUERY -D <DbName> -Exec #Execute update index Statistics on the target database $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -I $DSQUERY -D <DbName> -Dist -Exec #Analyze of all tables for all the databases for the non-local instance $DSQUERY with distant connection #You need to register credentials to use for distant connection to the instance (user and so on) in file $gvsqw_DistPasswdFile $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -I $DSQUERY -D <DbName> -Hashing -HashSize <NumericValue> -Exec #Enables hashing with a size managed by gvsqw_WithHashing variable (by default, 1000000) $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -I $DSQUERY -D <DbName> -NoHashing -Exec #Disable hashing (by default, gvsqw_WithHashing='False') $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -I $DSQUERY -D <DbName> -SizeMaxTable <NumericValue> -Exec #Update stats only from table of max 1000000 Mo (by default, $gvsqw_DefSizeMaxTableUpdtStats=1000000) $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -I $DSQUERY -D <DbName> -MinPctChange <NumericValue> -Exec #Update index statistics on table modified of at least $lvsqw_MinPctChange % $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -I $DSQUERY -D <DbName> -Type <Type> -Exec #Execute generated commands and change statisticstype ('default','index','table','all') $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -I $DSQUERY -D <DbName> -FSS <SampleSize> -Exec #To force sample size 'with sampling=<SampleSize> percent' #by default, script dynamically calculates this sample $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -I $DSQUERY -D <DbName> -Del -Exec #delete statistics before compute them: 'delete statistics $lvsqw_Owner.$lvsqw_Table' $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -I $DSQUERY -D <DbName> -IT 'TblName1,TblName2' -Exec #Execute generated commands for only the 2 specified tables $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -I $DSQUERY -D <DbName> -ET 'TblName3,TblName4' -Exec #Execute generated commands except for the 2 specified tables $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -I $DSQUERY -D <DbName> -IL '%_PROD' -Exec #Clause like to generate dynamic tables list to include (example: 'dbprod%') $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -I $DSQUERY -D <DbName> -EL '%_TESTS' -Exec #Clause like to generate dynamic tables list to exclude (example: 'dbtest%') $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -I $DSQUERY -D <DbName> -WCT '<condition>' -Exec #Clause where to generate dynamic tables list to include (example: 'OPEN_MODE=MOUNTED') $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -I $DSQUERY -D <DbName> -AddMail 'mymail1@mydomaine.com,mymail2@mydomaine.com' -Exec #Add the mail list to the default address managed by the variable gvsqw_GlobalMail $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -I $DSQUERY -D <DbName> -SendReport -Exec #Send the log by email at the end of the treatment even if there is no error $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -I $DSQUERY -D <DbName> -NoMail -Exec #Disables sending an email on error to $gvsqw_GlobalMail (by default, send on error) $gvsqw_SybBin/sqwsyb_UpdtStatsDatabase.ksh -I $DSQUERY -D <DbName> -FRT <NumericValue> -Exec #Force return code to '<NumericValue>' on error (if no error, "exit 0!") #You can also force return code of this script on all your #environnement if you set the variable: $gvsqw_ForcedReturnCodeScript_sqwsyb_UpdtStatsDatabase=<NumericValue> #in configuration file $gvsqw_SybBin/../etc_cust/sqwsyb_GlobalVar.cfg