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  • Oracle Solaris 11 pkg fix

    - by Larry Wake
    Bob Netherton explains why Solaris 11 pkg fix is his new friend. "So far so good. Then comes an oops... This is where you generally say a few things to yourself, and then promise to quit deleting configuration files and directories when you don't know what you are doing. Then you recall that the new Solaris 11 packaging system has some ability to correct common mistakes (like the one I just made)." [Read More]

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  • 11g ???:Active Data Guard

    - by JaneZhang(???)
    ?Oracle 11g??,????(physical Standby)???redo???,???????,???mount??11g??,???redo???,????????read-only??,????Active Data Guard ???Active Data Guard,?????????????????,??????????????   Active Data Guard???????????,??,????????????,????????,????redo??,????????????,??????????? Oracle Active Data Guard ?Oracle Database Enterprise Edition?????,??????????????   ????Active Data Guard, ??????? read-only ????,???? ALTER DATABASE RECOVER MANAGED STANDBY DATABASE????????????:??????COMPATIBLE ????????11.0.0?  ???????Active Data Guard,???V$DATABASE????"READ ONLY WITH APPLY':      SQL> SELECT open_mode FROM V$DATABASE;      OPEN_MODE      --------------------      READ ONLY WITH APPLY   ????????????,???????real-time apply:   SQL>ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE; ?????????read-only????????:    • Issue SELECT statements, including queries that require multiple sorts that leverage TEMP segments    • Use ALTER SESSION and ALTER SYSTEM statements    • Use SET ROLE    • Call stored procedures    • Use database links (dblinks) to write to remote databases    • Use stored procedures to call remote procedures via dblinks    • Use SET TRANSACTION READ ONLY for transaction level read consistency    • Issue complex queries (such as grouping SET queries and WITH CLAUSE queries) ??????????read-only????????:    • Any DMLs (excluding simple SELECT statements) or DDLs    • Query accessing local sequences    • DMLs to local temporary tables    ?????Active Data Guard ??: • ????????????????? • ???Oracle Real Application Clusters (Oracle RAC) ,?????? • RAC???RAC??    Oracle Data Guard ?????,,????????:    * ?????????????????:     http://docs.oracle.com/cd/B28359_01/server.111/b28294/create_ps.htm   * ???Oracle Real Application Clusters (Oracle RAC) ,??????:     http://www.oracle.com/technetwork/database/features/availability/maa-wp-10g-racprimarysingleinstance-131970.pdf   * RAC ???RAC ??:     http://www.oracle.com/technetwork/database/features/availability/maa-wp-10g-racprimaryracphysicalsta-131940.pdf  ??Active Data Guard???????,?????:    http://www.oracle.com/technetwork/database/features/availability/maa-wp-11gr1-activedataguard-1-128199.pdf     ??Oracle Maximum Availability Architecture Best Practices?????,???:   http://www.oracle.com/goto/maa

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  • ID?????????

    - by ???02
    ID????????????????????????ID????????????????????????Oracle Identity Manager????????????????????????????????Oracle Identity Analytics ??????????????????????ID???????????????Oracle Identity Manager -- ???????????ID?????????Oracle Identity Manager (?? OIM )??ID?????????????????????????????????ID???????????????????????????????????????????????????????????????????????????OIM ?????????????????????????????????????????????????????? OIM ??????????OIM ????????????????????????/??/???????/??????????????????????????????????????????????????????????????????????OIM ???????????????????????????????????????????????????????????????????(1)ID?????????:??~??~??~???????????????????????????????????(2)ID????????:??????ID???????????????·??????????????????(3)??ID????:????????????????????????ID·??????????????????????????????????????(4)???????????????????:???????????1???????????????????????????????????(5)ID??????????????:???????????????ID???·????????????????????(6)ID???????????????:ID?????????·????????????????????????????????????????Oracle Identity Analytics -- ????????·?????????????????Oracle Identity Analytics? (?? OIA )????????????(??)???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????OIA????????????????????????????????????????????????????(1)??????????????????????????????????????(2)?????????????????? : ??(hierarchical)???(relationship)???????????????(3)ID?????????(OIM?)????????????????????? ??????????? ?????? Oracle Direct

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  • Errata of Expert Oracle Exadata Chinese Edition-???? Oracle Exadata ???

    - by Bandari Huang
    P10 ????CPU???Westmere??,?????AES??????,????????????????????? Because these CPUs are in the Westmere family, they have built in AES encryption support, which essentially provides a hardware assist to encryption and decryption. P39 ????????????,???????????????????????? particularly with the higher levels of compression, the decision was made to do the decompression on the storage servers.  

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  • ??????(????·?????)

    - by ???02
    ??????(????·?????)??????????????????????????????????????????????????????????????????????????????????·??????????????????????????????????????Web?????·???????????????????????????????????????????????????????????????????·????????????????????????????????????????????????Web???????????Oracle Access Manager????????????????????????·??????????Oracle Enterprise Single-Sign On Suite????????????????????????????????????-??????????-?????????????Oracle Access Manager -- Web??????????·???????????????Oracle Access Manager??Web??????????????·????????????????????????????????????????????· ?????·????????????????????????????????????????????????????????????? ??????(1)??????:????·?????????????????????(2)???????????:??Web?????????????????????????????????????(3)????????:??????????????????(4)??????:????·???????????????????????Oracle Enterprise Single Sign-On Suite -- ???????????????·????????Oracle Enterprise Single Sign-On Suite??Web??????????????????????????????(?????????????????????????????)? ?????·????????????????????????·????????????????????????????????????????? ???????????????????????????? ??????(1)???????????????(2)??????????????????????????????????????????????????????????????????(3)??????????Windows???LDAP??????????????(4)Windows???????????????????????????????????(5)ID??????????????????????ID???·?????????????????????? ?????? Oracle Direct

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  • ??2???????·???·???????????????|Oracle Coherence|??????

    - by ???02
    ?????????????????????·?????????????????????????·??????????????????????????????·???????????????·???·??????????????????????????????????????????????????????·??????????????????????·????????????????????·?????????????????????????·?????????(???????????·??????)?????????·??????????????????????????????????????????????????????????/????????????????????????????????????????????????·?????????????(?2?1)??????????????????????????????·??????????????????????????????????????????·????????????????????????????????????????1???????????????????????????????????????????????????????????????????????????????????????????2???????????????????????????·????????????·????????????????????????????·????????????????????·?????????????·????????????·??????????·?????????????????????????????????????????????????????????????????????????????????????????????????3 ?????????????·??????????????·?????????????????????·????????????????????????????????????????????????????????????????????????????????????????·?????????????????????·?????????????????????????????·?????1?????????·???????????(???????????????????????????????????????????????????????????????????)?????????????????/??????????????????????2?????????·????????(???????????1???)????????·?????????????1????????????????????????????????????????????????????4??????????????????1,000?/??????????????????????????·????????????????????????·???????????????????????????1?????1,000????????????????????????????·????????????????????????1?????1???????1???????·????????????????????????????/??????????????2,000?/??????????????500?/??????????????????·???·???????????????????2??????????????2??????????1　???????·????????????????????·????????????·??????????????????????????2???????????????????????????????? 2　?????2?????????????????????????(??????Person)????????????????????????????????????·?????????????????123??

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  • ??2???????·???·???????????????|Oracle Coherence|??????

    - by ???02
    ???????? ???????? Fusion Middleware???????? ??????????? ???????? Fusion Middleware??SC?? ???????????????? ???????? Fusion Middleware??SC?? ????????????????·???·??????????????????????????????????·???·??????????????????????????????????????????????????????????????????????????????????2??????????????????????·???????????????·????????????????????????????????·????????????????·??????????????????????????????????????????????????????????????????????????(????????·??????)?????????????????????????(?1)?1???????·?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????·?????????????????????????????????????????????????????CPU??(?????????????????·??????)??????1????????????????????????????????????????????????????1,000?/???????????????????????????1??????1,000?????????????????·?????????????????????????????????????????·?????????????????(???????????????????)???????????????????????????????·????????????????????1???????????????????????????????????????????123??

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  • ??3???????·???·???????????:?????|Oracle Coherence|??????

    - by ???02
    ?????·???·????????????????????2????????????????????????????·???·??????????????????????????????????·???·??????????????????????·??????????????????????????????????????????????????????????4????????????(3)???????????????·??????????????(4)????????????????????????????(5)??????????????????????????(6)??????·?????????????(3)???????????????·?????????????????????????????????????????????????????????????????????????????????????????·???·?????????????????????????????????????????????????????·??????????????????????????????????????????????????????????·???·????????·????????????????????????????????????????(??????8)??????????????????????????????????????·???????????????????????????????????????????????????(4)????????????????????????????????????????????????????????????????? ????????·???·??????????·???????????????????????·???·???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????(?????????????????????????)??????????????????????????????????????????(5)???????????????????????????????·????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????·??????????????????????????????·?????????????????????????????????????????????·???·?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????(?9)?????(6)??????·???????????????????????1?????????????????·??????????????????????????????·?????????????????????????????????????·???????????1?????·?????????????????????????????????????????Coherence?????????????????????·?????????????????????????·???????????????????????????????????????·???????"???????·???"????????·???·?????????????(?10)???????????????????????????·???????????????????????????????????????????·??????????????????·???·???????????????????????????????????????????????????????????????????????????????????????????????????????·???·????????????·???????????????????????????????????????????????????????????·????????????????????????·???·?????1?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????12

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  • ??3???????·???·???????????:?????|Oracle Coherence|??????

    - by ???02
    ???????? ???????? Fusion Middleware???????? ??????????? ???????? Fusion Middleware??SC?? ???????????????? ???????? Fusion Middleware??SC?? ????????????????·???·?????????????????????????·???·???????????????????????????????????????????????????????????????????????????????????????·???·?????????????3???????????????·??????????·???????????????????????????????????????·?????????????·???·???????????????????????5?????????·???·??????????????????????·???????????????????????·???·???????????????????????????????????????????????·??????????????????????????????????????????????????????????????????????????????????(1)??????·???????????????(2)???HTTP?????????????2???????????????????????????·???·??????????????????????????????????????????????????(1)??????·??????????????·????????????????????·?????????????????????????????????????????????????????????????????·??????????????????????????????????????·???·????(JVM????)????·????????????????????????·??????(GC)????????????·????????????????????????????????·??????????????????????????????????????????????????????????????????????????????????????????????????????????OutOfMemoryError????????????????·???·????????????????????????????????????·???(??·?????????·???)????????????????????????????????????????????????(?6)??????????????????????????·??????????????????????????????????????·???·??????????·???????????????????????????????????·?????????????????????????????????????????(2)???HTTP???????????HTTP???????????????????????????????????????????????????????????????????????1??????????????????????????????????????????????????????·????????????·??????/???????????·????????????????????????????????????·???????GC?????????GC???????????????????????????????????·?????????·??????????????????????????????????????????????????(????????????·???????????????????????)?????????????????????????????·???·??????HTTP?????????????????????(?7)??7???????????????????·???????????????????????????????GC???????????????????????????·???????????????????????????????·?????????????????????????·??????????????????·???·???????????????3??3　???????????????????????·???·???????HTTP???????????????????????12??

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  • ??1???????????????!???????????????|Oracle Coherence|??????

    - by ???02
    ???????? ???????? Fusion Middleware???????? ??????????? ???????? Fusion Middleware??SC?? ???????????????? ???????? Fusion Middleware??SC?? ???????????????????????????·??????????????????/????????????????????????????????"??????·????(??????·????)"??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????!??????????????????????????????????????????????????????????????????????????????????????????????????????"??"???????????????????????????????????????????????????????????????????????????????????????????????????----????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????(?????????????????????????????)?????????????????????????????????????????????????????????????????????????????????????????????·???????????????????????????????????????????????1??????????????????????????????????????????????????????????????????????/????????????????????????·??????????????????????????????????????????????????????·???????????????????????????????????????????????????????????????????????????????????·???????????????????????????????????????????????????????????????????????????????????????·????????????????·??????????????????????????????????????????????????????????????????????????????·?????????????????????????I/O??????????????????????----???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????(ROI:Return On Investment)????????????????????????????????????????????????????????????4???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????4????????????1)??????????????(???·??????????????????)2)??????????????(????????·??????/???????)3)????????????????????(???????????????????????????????)4)????????????????????????(???????)?????(1)?(2)???????????????????????????????????????????????????????????????????????????????RDBMS??????????????????(3)?(4)???????????????????????????????????????????????RDBMS??????????????????????????????????????????????RDBMS???????????????????????ROI????????????(3)?(4)??????????????????????(1)?(2)??????????????????????(??????????????·?????)????????????????????????????"?????"????????????????????????????????????????????????????????????????????????????????????????????RDBMS(?????)????????????????????????????·??????????????????????????(3)?(4)????????????????????????????????/??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????IT??????Vol.22??????????????????????·??????????IT???????????????????????12??

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  • ??1???????????????????????????????|Oracle Coherence|??????

    - by ???02
    　????????????????????????????????????????????????????????????????????????????????　???????????????????????????????????????????????????????????????????????????????　???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????　????????????????????????????????SEO???????????????????????????????????????????????????????????????EC???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????　???????????????????????????????????????????????????????????/??????????????????????????????????????????????????????????(???)????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????　?????????????????????????????????????????????????????????????????????????(????)?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????IT???????????????????????????????????????????????　??????????????EC???????????????????????????????????????????????????????????????????????????????????????EC??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????…?Coherence????????????!?????EC??????????!?????????????????????????????????????????????????????????????????????????????????????　?????????????????　????????????????????????!????????????????????·????????????????????????????????????????????????

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  • Visual Studio Code Metrics and the Maintainability index of switch case

    - by pee2002
    Hi there! As a person who loves to follow the best practices, If i run code metrics (right click on project name in solution explorer and select "Calculate Code Metrics" - Visual Studio 2010) on: public static string GetFormFactor(int number) { string formFactor = string.Empty; switch (number) { case 1: formFactor = "Other"; break; case 2: formFactor = "SIP"; break; case 3: formFactor = "DIP"; break; case 4: formFactor = "ZIP"; break; case 5: formFactor = "SOJ"; break; } return formFactor; } It Gives me a Maintainability index of 61 (of course this is insignificant if you have only this, but if you use an utility like class whos philosophy is doing stuff like that, your utility class will have the maintainability index much worst..) Whats the solution for this?

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  • Strange behaviour of switch case with boolean value

    - by Nikhil Agrawal
    My question is not about how to solve this error(I already solved it) but why is this error with boolean value. My function is private string NumberToString(int number, bool flag) { string str; switch(flag) { case true: str = number.ToString("00"); break; case false: str = number.ToString("0000"); break; } return str; } Error is Use of unassigned local variable 'str'. Bool can only take true or false. So it will populate str in either case. Then why this error? Moreover this error is gone if along with true and false case I add a default case, but still what can a bool hold apart from true and false? Why this strange behaviour with bool variable?

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  • Why would you want a case sensitive database?

    - by Khorkrak
    What are some reasons for choosing a case sensitive collation over a case insensitive one? I can see perhaps a modest performance gain for the DB engine in doing string comparisons. Is that it? If your data is set to all lower or uppercase then case sensitive could be reasonable but it's a disaster if you store mixed case data and then try to query it. You have then apply a lower() function on the column so that it'll match the corresponding lower case string literal. This prevents index usage in every dbms. So wondering why anyone would use such an option.

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  • C# switch: case not falling through to other cases limitation

    - by Mike Fielden
    This question is kind of an add-on to this question In C#, a switch case cannot fall through to other cases, this causes a compilation error. In this case I am just adding some number to the month total for the selected month and each subsequent month thereafter. (simple example, not meant to be real) switch (month) { case 0: add something to month totals case 1: add something to month totals case 2: add something to month totals default: break; } Is there a logical alternative to this in C# without having to write out a ton of if statements? if (month <= 0) add something to month if (month <= 1) add something to month if (month <= 2) add something to month .... etc

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  • Case insensitive string compare in LINQ-to-SQL

    - by BlueMonkMN
    I've read that it's unwise to use ToUpper and ToLower to perform case-insensitive string comparisons, but I see no alternative when it comes to LINQ-to-SQL. The ignoreCase and CompareOptions arguments of String.Compare are ignored by LINQ-to-SQL (if you're using a case-sensitive database, you get a case-sensitive comparison even if you ask for a case-insensitive comparison). Is ToLower or ToUpper the best option here? Is one better than the other? I thought I read somewhere that ToUpper was better, but I don't know if that applies here. (I'm doing a lot of code reviews and everyone is using ToLower.) Dim s = From row In context.Table Where String.Compare(row.Name, "test", StringComparison.InvariantCultureIgnoreCase) = 0 This translates to an SQL query that simply compares row.Name with "test" and will not return "Test" and "TEST" on a case-sensitive database.

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  • Using "CASE" in Where clause to choose various column harm the performance

    - by zivgabo
    I have query which needs to be dynamic on some of the columns, meaning I get a parameter and according its value I decide which column to fetch in my Where clause. I've implemented this request using "CASE" expression: (CASE @isArrivalTime WHEN 1 THEN ArrivalTime ELSE PickedupTime END) >= DATEADD(mi, -@TZOffsetInMins, @sTime) AND (CASE @isArrivalTime WHEN 1 THEN ArrivalTime ELSE PickedupTime END) < DATEADD(mi, -@TZOffsetInMins, @fTime) If @isArrivalTime = 1 then chose ArrivalTime column else chose PickedupTime column. I have a clustered index on ArrivalTime and nonclustered index on PickedupTime. I've noticed that when I'm using this query (with @isArrivalTime = 1), my performance is a lot worse comparing to only using ArrivalTime. Maybe the query optimizer can't use\choose the index properly in this way? I compared the execution plans an noticed that when I'm using the CASE 32% of the time is being wasted on the index scan, but when I didn't use the CASE(just usedArrivalTime`) only 3% were wasted on this index scan. Anyone know the reason for this?

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  • Oracle XE + ODP.NET ANNOYING VIEW ERROR

    - by Alex
    Sup guys, heres my view: CREATE OR REPLACE VIEW SISTEMA.VWTELA AS SELECT TEL_DLTELA AS Tela, TEL_DLDESCRICAO As Descricao, TEL_DLTABELA As Tabela, CASE WHEN to_char(TEL_STATIVO) = to_char(1) THEN to_char('Yes') ELSE to_char('No') END as Ativo, TEL_IDTELA AS IDTEL FROM SISTEMA.TEL_TELA; When i do a SELECT * FROM SISTEMA.VWTELA it works fine from PL/SQL Developer but when i launch the query from my VB.NET application it throws me a super annoying error ORA-01722. Any ideas? The Application code works perfecty with any query so its not application code error but prolly some "super cool feature" from ODP.NET. Already tried to_number, to_whatever and same error always happens.

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  • creating object according to the switch case value

    - by vincent
    hello, i have the following switch case: switch (appModel.currentPage){ case "Programma": case "Winkelwagen": case "Films": case "Contact": if (page){ removeChild(page); } //here i would like to create a new object page that has the type of the switch. i mean this: var page: getDefinitionByName(appModel.currentPage+"Page"); this doesnt work thou but it should be something like: "FilmsPage or ContactPage or ...". addChild(page); break; Does anyone know how to do this?

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