Manuale d’uso / di manutenzione del prodotto ADAPTIVE SERVER IQ 12.4.0 del fabbricante Sybase
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Requir ed Operati ng Syste m Patches Adaptiv e Server IQ 12.4 .0 2 Release Bu lletin fo r Digital UNIX • Digital Unix V4.0f Note The pr oduct name Digital UNIX has recently been changed to Tru64 UNIX. However the Adaptive Server IQ documen tation still uses the ol d Digital UNIX name.
Adaptiv e Server IQ 12 .4.0 Converti ng 12.0.x d atabases to 1 2.4.0 Release B ulletin for Dig ital UNIX 3 T o obtain patch es, down load them fr om the website at http://www .service.digit al.com/ or contact your Digital rep resentative. Note These patches r equire that you reb uild your ker nel.
Inser t into ta ble from remote S QL databa se not su pported Adaptiv e Server IQ 12.4 .0 4 Release Bu lletin fo r Digital UNIX Y ou mus t run upgra siq.sql once for each 12.0.x database to upgrade it to 12.4.0. Note For Adap ti ve Server IQ versions 1 2 .
Adaptiv e Server IQ 12.4.0 Setting th e LD_LIB RARY_ PATH Envi ronment V ariabl e Release B ulletin for Dig ital UNIX 5 SUBSTRING(COL2 ...) 3. Inst allatio n Instruc tions For complete instal lation inst ructions, see Adaptive Server IQ Insta llation and Featur e Guide for Compaq Digi tal UNIX .
Acce ssing Cu rrent Rel ease Bul letin Info rmation Adaptiv e Server IQ 12.4.0 6 Release Bu lletin fo r Digital UNIX Dependin g on how you use Adapti ve Server IQ, you may also need to re fer to the documentation for Adaptive Ser ver Anywhere. Ref er to the V ersion 6.
Adaptiv e Server IQ 12 .4.0 Changed fun ctionali ty in Ad aptive Server IQ 12.4.0 Release B ulletin for Dig ital UNIX 7 In version 1 1.x, you could outpu t the query plan usin g the command IQ SET QUERYINF O ON .
Improv ed stor ed proce dure outp ut Adaptiv e Server IQ 12.4 .0 8 Release Bu lletin fo r Digital UNIX • Improved s tored procedure output Stored pr ocedures now disp lay output in unit s that are easier to und erstand.
Adaptiv e Server IQ 12.4.0 stop_asi q util ity Release B ulletin for Dig ital UNIX 9 • -iqmc sets the size o f the main buf fer cache • -iqtc sets the size of the temporar y buffer cache See “Additio ns to the start_asi q or asiqsrv1 2 command- line options ” on page 15 for detail s .
Data defi nition Adaptiv e Server IQ 12.4 .0 10 Release Bu lletin fo r Digital UNIX 7.1 Dat a definition This section reports problem s with data definitio n. 7.1.1 T emporary t ables in procedures When you include an automatically created tempo rary table in a procedure, the table should be d ropped automatically when the procedure completes.
Adaptiv e Server IQ 12.4.0 Large IN subquer ies Release Bul letin for Di gital UNIX 11 •= A L L •! = A L L If you use an uns upported query in this gr oup, Adap tive Server IQ returns an error lik.
User -defi ned vari able issu e Adap tive Serv er IQ 12. 4.0 12 Release Bu lletin fo r Digital UNIX T o avoid truncated output, increase the length by setti ng the truncation_length option as fo llo ws: SET OPTION DBO.
Adaptiv e Server IQ 12.4.0 Sybase Central Release Bulleti n for Digital UNIX 13 7.4 Sybase Centra l This secti o n rep ort s pr obl ems wit h t h e Adapti v e Ser ver IQ plug-in for Sy base Centr al.
Data Type colum n in Table Editor re tains foc us Adaptiv e Server IQ 12.4.0 14 Release Bu lletin fo r Digital UNIX When you use the Add In dex Wizar d to create a new index, the Choose IQ Index T ype screen lets you specify t he number of record s that shoul d be added before sending a notification message.
Adaptiv e Server IQ 12.4.0 Additio ns to the s tart_as iq or as iqsrv12 c omman d-line opti ons Release Bulleti n for Digital UNIX 15 • Remove all limits , and then set limits o n the stack size and descrip tors.
-gm c ommand li ne option Adaptiv e Server IQ 12.4.0 16 Release Bu lletin fo r Digital UNIX The -iqmt switch is not set by star t_asiq on Digital UNIX s ystems. The setti ng listed in the Ad aptive S erver I Q Adm inistr ation an d Per f or manc e Guid e and the Adaptive Se rver IQ Ins tallation and Featur e Guide is incorrect.
Adaptiv e Server IQ 12.4.0 Confirmi ng connec tions Release Bulleti n for Digital UNIX 17 The followin g note should be added to Chapter 2, “The Databas e Server ,” after the des cript ion of th e -v server switch.
Using a .odbc .ini file Adaptiv e Serve r IQ 12.4 .0 18 Release Bu lletin fo r Digital UNIX If Adaptive Server IQ does not detect the presen ce of an ODBC driv er manager , it will u se ~/.o dbc.ini for data source information. Otherwise, it will query the driver manager for data source inform ation.
Adaptiv e Server IQ 12 .4.0 Additio n to STOP DATA BASE s tatement Release Bulleti n for Digital UNIX 19 Y --------------------------------------------- --------- - If you t ype Y (yes), th e following message displ ays: --------------------------------------------- --------- - Shutting down asiqsrv12 .
Erro r in DBST OP exam pl e Adaptiv e Ser ve r IQ 12.4.0 20 Release Bu lletin fo r Digital UNIX The fol lowing inform ation should be added to the STOP DA T ABASE statement in the Adaptive Server IQ Refer ence .
Adaptiv e Server IQ 12 .4.0 -Z switch must be up percase Release Bulleti n for Digital UNIX 21 The parameter string in the sam ple configuratio n file shown in Chapter 2 of the Adaptive Server IQ Administration a nd Performance Guide should be corrected to: -n Elora -c 16M -x tcpip(port=2367) -gm 10 -gp 4096 pathmydb.
MESSAGE PATH Adap tive Server IQ 12 .4.0 22 Release Bu lletin fo r Digital UNIX 9.2.2 MESSAGE P A TH In the MESSAGE P A TH clause of CREA TE DA T ABASE you must specify an operating system file. The message file cannot be on a raw partition. This is a correction to the Adaptive Server IQ Refer ence .
Adaptiv e Server IQ 12.4.0 Error doc umenting IQ PATH Release Bulleti n for Digital UNIX 23 • Specify a dif ferent pathname (for ex ample, /iqfiles/main /iq and /iqfiles/temp /iq or dif ferent raw pa rtitions • Omit TEMPORAR Y P A TH when y ou create the d a tabase.
SIZE cl ause of CRE ATE DB SPACE Adaptiv e Server IQ 12.4.0 24 Release Bu lletin fo r Digital UNIX in database /tech1/iq/cdrdb.db. In another session, please issue a CREATE DBSPACE .
Adaptiv e Server IQ 12.4.0 Rec ommen ded index types Release Bulleti n for Digital UNIX 25 9.2.12 Reco mmended index t ypes In the Adaptive Server I Q Admini s tra t ion and Per f ormance Guide , Chap.
Changes to “Usin g join in dexes” Adaptiv e Server IQ 12.4.0 26 Release Bu lletin fo r Digital UNIX If the join colum n is made up of more than o ne column, th e combination of the values must be unique . For example, in the asiqdemo database, the id in th e customer table and the cust_id in the sal es_or der table each contain a customer ID.
Adaptiv e Server IQ 12 .4.0 Changes to “Usi ng join i ndexe s” Release Bulleti n for Digital UNIX 27 Creating st ar joins The followi ng should be ad ded to Ch apter 4 of the Ad aptive Server IQ Administ ratio n and Perf ormance Guide just after the figure that shows the sale s_or der table in a star join.
Error in DISK_S TRIPING def ault Adaptiv e Server IQ 12.4.0 28 Release Bu lletin fo r Digital UNIX 9.3 Error in DISK_STRIPI NG default The Adaptive Server IQ Refer ence c ontains an error in the General Database Options table in Chapter 5, “Database Options.
Adaptiv e Server IQ 12 .4.0 Default Release Bulleti n for Digital UNIX 29 Default ON Description This o ption reports a syntax error for those queries co ntaining outer joins that have ambiguou s syntax due to the p r esence of duplicate correlation name s on a null-suppl ying table.
New and c hanged general database options Adaptiv e Server IQ 12.4 .0 30 Release Bu lletin fo r Digital UNIX • In order to join a local ASE table with a remote IQ 12 table, the ASE version must be 1 1.9.2, and you must use the server class cd ASAnywhere.
Adaptiv e Server IQ 12 .4.0 Descrip tion Release Bulleti n for Digital UNIX 31 Description This opt i o n s pecifi es an up per b ou nd ( in MB) on the amou nt of heap m e mory subsequent loads can use.
Descr ip tio n Adaptiv e Ser ve r IQ 12.4.0 32 Release Bu lletin fo r Digital UNIX Descriptio n Fo r join s with in a query , the IQ optimizer has a choice of several algo rith ms for processing the join . This optio n allows you to override th e optimizer’ s cost—based decision when choosing the algorithm to use.
Adaptiv e Server IQ 12.4.0 String funct ion REPE AT is su pported Release Bulleti n for Digital UNIX 33 { SELECT * FROM CUSTOMERS } Note This syntax is not currentl y supported on Digital UNIX. 9.4.8 S tring function REPEA T is supported The string functio n REPEA T is supported in Adaptiv e Server IQ version 12.
Using ISNUL L() and COALES CE( ) Adaptiv e Serve r IQ 12.4. 0 34 Release Bu lletin fo r Digital UNIX The NUMBER(*) function i s not sup p orted and shou ld be deleted from the Adaptive S erver IQ Refer ence Manual . 9.4.1 1 Using ISNULL() and COALESCE() ISNULL() and C O ALESCE() can be use d to convert NULL values into something else.
Adaptiv e Server IQ 12 .4.0 Default Release Bulleti n for Digital UNIX 35 Default 1 Description This option lets you control the amount of space Adaptive S erver IQ sets aside space in your temporary I Q Store, so that if you run out of disk space there yo u can add a new db space.
Effect o f check points Adaptiv e Server IQ 12.4.0 36 Release Bu lletin fo r Digital UNIX Temporary IQ Blocks Used:,163 of 61 44, 2%, Max Block#: 97 If the percen t age of block s used is in the ni neties, you need to add more disk space with the CREA TE DBSP ACE command.
37 • Increme ntal backup s are disabled After t he database is opened in forced recover y mode, incremen tal backups are disabled. The n ext backup must be a full backup .
38 T o verify that the data is not corrupt and set the d atabase storage to its actua l value, you start the server with the -iqdroplks sw itch and connect to the database. Y ou then s et the option dbcc_option and ru n the sp_iqcheck db stored proce dure .
39 Runnin g sp_ iqche ckdb In order to recover leaked storage within a database, first star t the server with the -iqdroplks switch in the asiqsrv1 2 command. Next, connect to you r database and i ssue the command: sp_iqcheckdb The stored procedu re reads all storage within the database.
40 The dbcc_option settings of 0 and 3, w hen combined with the serv er option -iqdroplks , update the free list if no errors are detected. In order to perfor m this function, write tran s actions are prevented before and during the runnin g of sp_iqche ckdb .
41 Exam ple As sume that the DBA cannot successfully open and con nect to database foo , because of reported IQ errors during database o pen and recovery .
42 9.5.6 SP_IQST A TUS now displays IQ Page Size The sp_iqs tat u s st o red pr ocedu re now di s plays the IQ page size in addit io n to the block size. For ex ample, Adaptive Server IQ used to display: Block Size: 512/2bpc It now dis pla ys: Page Size: 1024/512blksz/2bpc 9.
43 When you use the RESTORE statement to move and/or rename a database, you can rename all of the files except the transaction log. Tr ansactions continue to be written to th e old log file na me, in the location wh ere the Catalog S tore file (the .db file) is located after the d at abase is restored.
44 Set the nam e of the trans action log file (-t ) This option sets a filename, including an optio nal directory p ath, for a new transactio n log. If the databas e is not currently using a trans action log, it starts u sin g one. If the database is already using a trans action log, it ch ang es to using th e new file as its transaction lo g.
45 The same command can also be used to add a new u ser . For this reason, if you inadvertently enter the user ID of an existing user when you mean to add a new user , you are actually changing the password of the existing user . Y ou do not receive a warning becau s e this behavio r is considered normal.
46 9.5.14 Changes to BACKUP st atem ent In th e Adaptive Server IQ Refer ence , the SIZE and ST ACKER option description s in the BACKUP statement should read: SIZE option Specifies maximum tape o r f ile capacity ( so me platf orms do not reliably detect end-of-tape markers) .
47 ipcrm -m mid1 -m mid2 ... -s sid1 -s sid2 ... For example: % ipcrm -m 40965 -s 5130 -s36682 9.5.16 Monitoring server acti v i t y It may be helpful, especially for new users, to mon itor server activity .
48 9.6 Client applications 9.6.1 ODBC AutoPreCommit omitted The ODBC Auto PreCommit opt ion was om itted from the Adaptive Server IQ Ref erence . T urning this option ON causes each statement to do a C OMMIT before executio n (as opposed to a C OMMIT af ter execution for the AutoCommit opt ion ).
49 9.7.1 Adapt ive Server IQ plug-in help r eflects M ultiplex support Adaptive Server IQ Multiplex 12.4.0 is a sep arate product from Adaptive Server IQ 12.4.0. If you have not pu rchased or instal led Adaptive Se rver IQ Multiplex, the functio n ality described in th e online help top ic Managing Multiplexes is not available.
50 • Outpu t from sp_iqst atus procedure Y ou may find addi tional h elp from t he Sybase onli ne suppo rt database, MySuppo rt. MySupport l ets you search thr ough closed su pport cases, lates t software bulletins, resolved and known problems, using a view customized for your need s .
51 techinfo.sybase.co m 2 In the Browse section, click on the What’ s Hot entry . 3 Explo re your area o f interest: Hot Docs co vering vario us topics, o r Hot Links to T echnical News, Certificatio n Reports, Partner Certifications, and so on .
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Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Sybase ADAPTIVE SERVER IQ 12.4.0 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Sybase ADAPTIVE SERVER IQ 12.4.0 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Sybase ADAPTIVE SERVER IQ 12.4.0 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Sybase ADAPTIVE SERVER IQ 12.4.0 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Sybase ADAPTIVE SERVER IQ 12.4.0, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Sybase ADAPTIVE SERVER IQ 12.4.0.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Sybase ADAPTIVE SERVER IQ 12.4.0. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Sybase ADAPTIVE SERVER IQ 12.4.0 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
