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  • I need a form to tie MySQL Records together.

    - by John R
    I need a HTML-based form to tie database records together. The user scenario that I envision is somthing like this: A super-user does a search of the database and is delivered a table of records based on that search; each record is numbered with the database-record id. There would also be two text fields next to each record. These text fields would allow: the user to make a reference from one record to another. For example, a user could enter into record id #457 the integer 242 to indicate that there is a correlation with record ID #242. The user would also describe the type of relationship it is. This could be accomplished with a simple integer in the second field that indicates the type of relationship between the two records. When the super-user hits the submit button, all of these relationships are saved in a mySqljoin table. One option is to give me advice on how to implement and code this myself in PHP. However, before I reinvent the wheel, another option is to lead me to a free script that does something similar.

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  • Oracle Enterprise Manager Cloud Control 12c Release 2 (12.1.0.2) ist da!

    - by Ralf Durben (DBA Community)
    Das zweite Release von Oracle Enterprise Manager Cloud Control 12c ist jetzt verfügbar und zwar für alle Plattformen, auf denen auch das Vorgängerrelease genutzt werden konnte. Das gab es bei Enterprise Manager noch nie: Alle Plattformen haben die gleiche Priorität! In dem neuen Release wurde die Stabilität nochmals verbessert und einige Wünsche unserer Kunden verwirklicht. Auch einige neue Funktionalitäten, wie zum Beispiel "Java as a Service" stehen nun zur Verfügung. Neben dem Cloud Control Framework wurden auch einige Plug-Ins erneuert. Cloud Control 12.1.0.2 ist ein komplettes Release und der Download enthält alles für die Installation des OMS und Agenten. Damit kann mit der Software eine komplette Neuinstallation oder ein Upgrade von EM 10.2.0.5, 11.1 oder 12.1.0.1 (auch ohne Bundle Patch 1) vorgenommen werden. Eine Übersicht über die Neuerungen finden Sie im Oracle Enterprise Manager Cloud Control Introduction Document.

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  • Upcoming Technical Training by PTS

    - by Javier Puerta
    Oracle Big Data Workshop June 24-26, 2014: Paris, France July 09-11, 2014: Paris, France Upgrade Your Solution to Oracle Database 12c Workshop June 17-18, 2014: Lisbon, Portugal July 29-30, 2014: Milan, Italy Oracle 12c Multitenant Technical Workshop July 23-24, 2014: Istanbul, Turkey September 2-3, 2014: Ankara, Turkey Oracle Exadata X4 workshop June 4-5, 2014: Madrid, Spain If registration link is not available, please contact the OPN Enablement manager at your local Oracle office.

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  • Engage Customers & Empower Employees

    - by Michelle Kimihira
    Oracle WebCenter and Oracle Identity Management help people collaborate more efficiently with social tools that optimize connections between people, information and applications while ensuring timely, relevant and accurate information is always available. See this demo with Andy Kershaw, Senior Director of Product Management, Oracle WebCenter. Additional Information Product Information on Oracle.com: Oracle Fusion Middleware Follow us on Twitter and Facebook and YouTube Subscribe to our regular Fusion Middleware Newsletter

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  • La gamme Exalogic d'Oracle s'enrichit et offre des performances extrêmes pour les applications Java

    La gamme Exalogic d'Oracle s'enrichit Et offre un choix encore plus étendu de solutions de consolidation et des performances extrêmes pour les applications Java Dans la foulée de la présentation de ses tous nouveaux serveurs SPARC Supercluster T3, http://www.developpez.com/actu/24664...s-de-plus-IBM/ Oracle vient d'annonce Oracle Exalogic Elastic Cloud T3-1B, un nouveau modèle qui permet aux systèmes intégrés Oracle Exalogic Elastic Cloud de bénéficier des caractéristiques des serveurs SPARC Solaris en matière de performance, d'évoluti...

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  • Exklusive Einladung zum Open Day bei Oracle in Potsdam!

    - by britta wolf
    Liebe Studenten, Absolventen und Young Professionals, wir laden euch am 8. November 2012  zum Oracle Open Day in unsere Potsdamer-Niederlassung ein! Professoren aller Studienrichtungen sind ebenfalls herzlich willkommen! Der Open Day bietet die tolle Gelegenheit OracleDirect in Potsdam in spannenden Vorträgen und Führungen kennen zu lernen. Ausserdem wird ein Job-Speeddating veranstaltet und am Abend ist ein informeller Networking-Event geplant. Ihr habt die einmalige Chance mit unserem Management-Team und Mitarbeitern ins Gespräch zu kommen.Wir freuen uns auf einen interessanten Austausch mit Interessenten aller Studien- und Berufsrichtungen! Führung I: 16:00 -17:00 Uhr Führung II: 17:30-18:30 Uhr Standort: Schiffbauergasse 14, 14467 Potsdam  Sowohl für die Führung (2 x 20 Teilnehmer), als auch für die Abendveranstaltung ist eine Anmeldung per Email bis zum 05. November erforderlich. Kontakt: [email protected]  (Telefon: 0331 200 7122)

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  • Business Process Management – What’s new in Oracle BPM 11.1.1.7.0 Webcast July 4th 2013

    - by JuergenKress
    Business-Driven. Complete. Best Practice. Business processes are at the heart of what makes or breaks a business—and what differentiates it from the competition. Business processes that deliver operational efficiency, business visibility, excellent customer experience, and agility give the enterprise an edge over the competition. Business managers need process management tools that enable them to make impactful changes. Oracle has been always a leader in this area and the new version of Oracle BPM 11g takes that even further by providing complete web based process modeling, simulation and implementation including designing the user interface and business logic. That provides business users with ability to take complete control over the business processes without sacrificing the vast service integration capabilities delivered traditionally by IT using SOA approach. Oracle Business Process Management is the industry's most complete and business user-friendly BPM solution. Register today for this webcast and find out more on the latest and most exciting new features which are now available in Oracle BPM Suite. Agenda Introduction do Oracle BPM 11g Exciting new features in this release Revamped Process Composer Simulations Web Forms Process Player Adaptive Case Management Instance Revisioning Other features Demonstration Q&A For details please visit the registration page. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Facebook Wiki Mix Forum Technorati Tags: BPM,Webcast,education,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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  • Oracle E-Business Financials Recommended Patch Collections (RPCs) for R12.1.3 Have Been Released for August 2012

    - by Oracle_EBS
    What is a Recommended Patch Collection (RPC)? An RPC is a collection of recommended patches consolidated into a single, downloadable patch, ready to be applied. The RPCs are created with the following goals in mind: Stability: Address issues that occur often and interfere with the normal completion of crucial business processes, such as period close--as observed by Oracle Development and Global Customer Support. Root Cause Fixes: Deliver a root cause fix for data corruption issues that delay period close, normal transaction flow actions, performance, and other issues. Compact: While bundling a large number of important corrections, we have kept the file footprint as small as possible to facilitate uptake and minimize testing. Reliable: Reliable code with multiple customer downloads and comprehensive testing by QA, Support and Proactive Support. RPCs are available for the following products: Cash Management Collections E-Business Tax Financials for India Fixed Assets General Ledger Internet Expenses iReceivables Loans Payables Payments Receivables Subledger Accounting For the latest Financials Recommended Patch Collections (RPCs), please view: EBS: R12.1 Oracle Financials Recommended Patches [Doc ID 954704.1].

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  • I need a form to tie MySQL Records together (i.e., many-to-many relationships).

    - by John R
    I need a HTML-based form to tie database records together. The user scenario that I envision is somthing like this: A super-user does a search of the database and is delivered a table of records based on that search; each record is numbered with the database-record id. There would also be two text fields next to each record. These text fields would allow: the user to make a reference from one record to another. For example, a user could enter into record id #457 that there is a correlation with record ID #242. The user would also describe the type of relationship it is. This could be with a simple integer that represents the type of relationship between the two records. When the super-user hits the submit button, all of these relationships are saved in a mySqljoin table. One option is to give me advice on how to implement and code this myself in PHP. However, before I reinvent the wheel, another option is to lead me to a free script that does something similar.

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  • PHP/Oracle Connectivity randomly "drops out"

    - by user20555
    Hi! Here's the current situation - I have two web servers (for now named A and B) and two database servers (named C and D). The web servers are quite old, and are running an early version of Apache 2 + PHP4, while the DB servers are running Oracle 9i and 10g respectively. We're experiencing a strange problem connecting (via PHP code) to database A while on web server B only. Web server A has no issues at all... Randomly, web server B will report a "Not connected to Oracle" error (3114). I can't see a real pattern with this, but refreshing a few times seems to fix the issue. Apparently there are no drop-outs on the network interface, which leads me to believe that there's some misconfiguration between PHP/Apache and Oracle (which uses connection pooling). We're running SunOS 5.8... Any ideas?

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  • Monday at Oracle OpenWorld 2012 - Must See Session: “Using the Right Tools, Techniques, and Technologies for Integration Projects”

    - by Lionel Dubreuil
    Don’t miss this “CON8669 - Using the Right Tools, Techniques, and Technologies for Integration Projects“ session with Timothy Hall - Sr. Director, Oracle: Date: Monday, Oct 1, Time: 3:15 PM - 4:15 PM Location: Moscone South - 308 Every integration project brings its own unique set of challenges. There are many tools and techniques to choose from. How do you ensure that you have a means of consistently and repeatedly making decisions about which tools, techniques, and technologies are used? In working with many customers around the globe, Oracle has developed a set of criteria to help evaluate a variety of common integration questions. This session explores these criteria and how they have been further organized into decision trees that offer a repeatable means for ensuring that project teams are given the same guidance from project to project. Using these techniques, the presentation shows how you can reduce risk and speed productivity for your projects Objectives for this session are to: Discuss common questions that arise at the start of integration projects Review various decision criteria and approaches for getting to a consistent set of answers Explore how these techniques can be used to reduce risk and speed productivity

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  • Join the Cloud - Just Like Lending Club

    - by Di Seghposs
    See why Lending Club, the leading platform for investing in and obtaining personal loans, selected Oracle Fusion Financials to help improve decision-making and workflow, implement robust reporting, and take advantage of the scalability and cost savings provided by the cloud. Watch the Lending Club video. Additional Resources: Oracle ERP Cloud Service Video Oracle ERP Cloud Service Executive Strategy Brief Oracle Fusion Financials Quick Tour of Oracle Fusion Financials

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  • Nashorn ?? JDBC ? Oracle DB ?????

    - by Homma
    ???? ????????????Nashorn ?? JavaScript ??????? JDBC ? API ??????Oracle DB ?????????????????????? ?????????????????????JDBC ? API ??????????????? ????????? URL ? https://blogs.oracle.com/nashorn_ja/entry/nashorn_jdbc_1 ??? ???? ???? DB ????Oracle Linux 6.5 ?? Oracle 11.2.0.3.0 ?????????????? JDBC ????????????? DB ????????????????? ???? ?Oracle Database JDBC ???????????????????????Nashorn ?? JavaScript ?????????????????????? JDBC ? Oracle DB ??????? Nashorn ?? JavaScript ??????? JDBC ? Oracle DB ?????? JavaScript ?????? DB ???????????????? JavaScript ?????? oracle ????????? JavaScript ?????? DB ?????????????????????????????????DB ???????????? JavaScript ???????????????????????? oracle ?????????? JDBC ??????????????????????? ???? DB ?????? ?????? DB ???????????? SQL> create user test identified by "test"; SQL> grant connect, resource to test; Java 8 ??????? ???? JDK 8 ?????????????????????????????? 8u5 ???? Java 8 ??????? ???????? JDK ? yum ??????????????? # yum install ./jdk-8u5-linux-x64.rpm JDK ????????????????????? # java -version java version "1.8.0_05" Java(TM) SE Runtime Environment (build 1.8.0_05-b13) Java HotSpot(TM) 64-Bit Server VM (build 25.5-b02, mixed mode) Nashorn ????? oracle ??????????PATH ??????? $ vi ~/.bash_profile PATH=${PATH}:/usr/java/latest/bin export PATH $ . ~/.bash_profile jjs ?????????????????? $ jjs -fv nashorn full version 1.8.0_05-b13 ????????????? JDBC ?????????????? JDBC ?????????JDBC ?????? ??????????????????? ???????? JDBC ????????????????????????? ?????????????? JavaScript ??????????jjs ???????????????????? Nashorn ? JavaScript ?????????????????? JDBC ??????? jjs ????? -cp ?????? JDBC ????? JAR ??????????? $ vi version.js var OracleDataSource = Java.type("oracle.jdbc.pool.OracleDataSource"); var ods = new OracleDataSource(); ods.setURL("jdbc:oracle:thin:test/test@localhost:1521:orcl"); var conn = ods.getConnection(); var meta = conn.getMetaData(); print("JDBC driver version is " + meta.getDriverVersion()); $ jjs -cp ${ORACLE_HOME}/jdbc/lib/ojdbc6.jar version.js JDBC driver version is 11.2.0.3.0 ??????JavaScript ???????? JDBC ?????????? (11.2.0.3.0) ????????? Java.type() ??????? JavaClass ??????? new ????? Java ??????????????????????????? Java ???????????????????? ????????????????????????????????????????????????????? ?????????????????????????????????????? Java ??????????????? JavaScript ???????????????????????????????? ?????? ???????????????? jjs ???????????Nashorn ??????????????jjs ??????????????????????????? $ jjs -cp ${ORACLE_HOME}/jdbc/lib/ojdbc6.jar jjs> var OracleDataSource = Java.type("oracle.jdbc.pool.OracleDataSource"); jjs> var ods = new OracleDataSource(); jjs> ods.setURL("jdbc:oracle:thin:test/test@localhost:1521:orcl"); null jjs> var conn = ods.getConnection(); jjs> var meta = conn.getMetaData(); jjs> print("JDBC driver version is " + meta.getDriverVersion()); JDBC driver version is 11.2.0.3.0 ???????? JDBC ?????????? (11.2.0.3.0) ????????? ?????????????????????????????????????????????????????????JDBC ?????????????????????? ??? Nashorn ???????? JDBC ? API ????????????? API ???????????????? ???????? JavaScript ?????????????????????????????????? ???????????? JDBC ? DB ???????????????? JDBC ??????????????????????????? ???? Oracle Database JDBC?????? 11g????2(11.2) ??????? jjs ?????????? Nashorn User's Guide Java Scripting Programmer's Guide Oracle Nashorn: A Next-Generation JavaScript Engine for the JVM

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  • Java EE and GlassFish Server ??????????

    - by Hiro
    "The Aquarium"????·??????????????????????????GlassFish Server??????????????????????? ?????????????????????????????????????????GlassFish Server??????????????????????????????????? GlassFish Server???????·????????(????????????????????)????????? ????·?????????????"GlassFish Server 4"???????????????????2014????????·???(????·???????GlassFish Server 4.1)?????????????? ????????????Oracle Fusion Middleware 11g?Media Pack??Oracle GlassFish Server 3.1.2??????????????????????????????(????Oracle GlassFish Server 4.x)?????????????? Oracle GlassFish Server 3.1.2????????????????????Oracle GlassFish Server 2.1.x???3.1.x????????·????·???????????????????? ?????

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  • ??????????Oracle???????????????????????·????! |WebLogic Channel|??????

    - by ???02
    ?? ???????·??·?????????????????????????????????????????????????????????????????????????????????????????????????!?????????????????????·????????????????!???????????!????????????????????????????? ????????????????????GUI??? Oracle Enterprise Manager Grid Control??????????????·???????GUI????JRockit Flight Recorder??????????????2??????????WebLogic Server ? Oracle Database ???????????????????????????????????????????????????¦Database?Application Server??????¦????????????????????¦???????????????????????¦?????????·????????¦Oracle Enterprise Manager Grid Control????????????¦JRockit Flight Recorder????????????????????????????????????????????2???????????????????????http://www.oracle.com/technetwork/jp/ondemand/application-grid/id-000954-404639-ja.pdf<wmv> http://otndnld.oracle.co.jp/ondemand/otn-seminar/movie/id_000948.wmv<mp4> http://otndnld.oracle.co.jp/ondemand/otn-seminar/movie/mp4/id_000948.mp4

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  • ?????????????????????!??????????????????

    - by OTN-J Master
    ????????????????????????? ??????????????????????????( ePub ????Mobi ??)???????? ???????????????????????????????????????????????????????????????????????????????????????????????????? Oracle Database 11g ????2 (11.2) ?????? Oracle Fusion Middleware 11g Release 1 (11.1.1) ?????? Oracle WebLogic Server 12c Release 1 Oracle JDeveloper 11g Release 2  Oracle Enterprise Manager 12c Release 1 (12.1) ?????? ????????????????????????????????????????????????????? ???????????

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  • ???????/???MySQL?? ???

    - by user788995
    ????? ??:2012/05/28 ??:??????/?? MySQL???????????????????????????????????????????????MySQL?? ????????????????MySQL????????????????????? MySQL??????????????????????? ????????? ????????????????? http://otndnld.oracle.co.jp/ondemand/otn-seminar/movie/120518_MySQL%20Nyumon%20Jissen.wmv http://otndnld.oracle.co.jp/ondemand/otn-seminar/movie/mp4/120518_MySQL%20Nyumon%20Jissen.mp4 http://www.oracle.com/technetwork/jp/ondemand/mysql/120518-mysql-nyumon-jissen-jp-1641036-ja.pdf

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  • Interoperability between Weblogic 10.3.1 and Oracle BPM 10.3.1

    - by alfredozn
    Hi, Im migrating an ALBPM 6.5 running on a WLS 10.0 to an Oracle BPM 10.3.1 running on WLS 10.3.1 I got some problems with the Oracle driver because the old driver (weblogic.jdbcx.oracle.OracleDataSource) was definitely removed from the server and is not longer supported. Instead I used the thin driver (oracle.jdbc.xa.OracleXADataSource), the database migration was executed succesfully but after that, when I try to deploy the engine ear in WebLogic I got exceptions asociated to the driver: [ (cont) ] Main: Caused by: weblogic.application.ModuleException: [HTTP:101216]Servlet: "engineStartup" failed to preload on startup in Web application: "/albpmServices/albpm_engine". [ (cont) ] Main: fuego.directory.DirectoryRuntimeException: Exception [java.sql.SQLException: Invalid column type]. [ (cont) ] Main: at fuego.directory.DirectoryRuntimeException.wrapException(DirectoryRuntimeException.java:85) [ (cont) ] Main: at fuego.directory.provider.jdbc.oracle.OraclePersistenceManager.mapSQLException(OraclePersistenceManager.java:145) [ (cont) ] Main: at fuego.directory.provider.jdbc.datadirect.oracle.DataDirectOraclePersistenceManager.mapSQLException(DataDirectOraclePersistenceManager.java:51) [ (cont) ] Main: at fuego.directory.provider.jdbc.JDBCServiceAccessor.mapSQLException(JDBCServiceAccessor.java:78) [ (cont) ] Main: at fuego.directory.provider.jdbc.JDBCObjectPropertiesAccessor.fetchAllDirectoryProperties(JDBCObjectPropertiesAccessor.java:442) [ (cont) ] Main: at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) I was looking around for a solution but all is pointing to use the old driver, I think isn't a good practice to force the server to use this driver after Oracle remove it completely. Any suggestions or similar experiences??

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  • mysql - query group/concat question??

    - by tom smith
    I have a situation where I return results with mutiple rows. I'm looking for aw way to return a single row, with the multiple items in separate cols within the row. My initial query: SELECT a.name, a.city, a.address, a.abbrv, b.urltype, b.url FROM jos__universityTBL as a LEFT JOIN jos__university_urlTBL as b on b.universityID = a.ID WHERE a.stateVAL = 'CA' ...my output: | University Of Southern Califor | Los Angeles | | usc | 2 | http://web-app.usc.edu/ws/soc/api/ | | University Of Southern Califor | Los Angeles | | usc | 4 | http://web-app.usc.edu/ws/soc/api/ | | University Of Southern Califor | Los Angeles | | usc | 1 | www.usc.edu | | San Jose State University | San Jose | | sjsu | 2 | http://info.sjsu.edu/home/schedules.html | | San Jose State University | San Jose | | sjsu | 4 | https://cmshr.sjsu.edu/psp/HSJPRDF/EMPLOYEE/HSJPRD/c/COMMUNITY_ACCESS.CLASS_SEARCH.GBL?FolderPath=PORTAL_ROOT_OBJECT.PA_HC_CLASS_SEARCH | | San Jose State University | San Jose | | sjsu | 1 | www.sjsu.edu My tbl schema... mysql> describe jos_universityTBL; +----------------+--------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +----------------+--------------+------+-----+---------+----------------+ | name | varchar(50) | NO | UNI | | | | repos_dir_name | varchar(50) | NO | | | | | city | varchar(20) | YES | | | | | stateVAL | varchar(5) | NO | | | | | address | varchar(50) | NO | | | | | abbrv | varchar(20) | NO | | | | | childtbl | varchar(200) | NO | | | | | userID | int(10) | NO | | 0 | | | ID | int(10) | NO | PRI | NULL | auto_increment | +----------------+--------------+------+-----+---------+----------------+ 9 rows in set (0.00 sec) mysql> describe jos_university_urlTBL; +--------------+--------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +--------------+--------------+------+-----+---------+----------------+ | universityID | int(10) | NO | | 0 | | | urltype | int(5) | NO | | 0 | | | url | varchar(200) | NO | MUL | | | | actionID | int(5) | YES | | 0 | | | status | int(5) | YES | | 0 | | | ID | int(10) | NO | PRI | NULL | auto_increment | +--------------+--------------+------+-----+---------+----------------+ 6 rows in set (0.00 sec) I'm really trying to get something like: |<<the concated urltype-url >>| ucs | losangeles | usc.edu | 1-u1 | 2-u2 | 3-u2 | Any pointers would be helpful!

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  • PHP MySQL Update query

    - by Jordan Pagaduan
    I have a website that has an update query. Example. Table name - myTable Table Content - id(AI) name -- myName age -- 13 image -- (no values) birthdate -- (no values) I only put values in name and age. In image and birthdate, I haven't put anything. If I edit it and update it and I don't put anything in name and in age, I only put values in image and in birthdate. The output is like this. (This ouput I wanted) Table name - myTable Table Content - id(AI) name -- myName age -- 13 image -- myImage.jpg birthdate -- Feb. 31, 2010 This is my code: <?php //mysql connect... //mysql select database... $sql = "UPDATE myTable SET name = '".$name."', age = '".$age."', image = '".$image."', birthdate"'$birthdate.."' WHERE id = $id"; mysql_query($sql); ?> I used this code but the output is: Table name - myTable Table Content - id(AI) name -- (no values) age -- (no values) image -- myImage.jpg birthdate -- Feb. 31, 2010 Feel free to ask if you don't understand my question Thank you

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  • MySQL performance - 100Mb ethernet vs 1Gb ethernet

    - by Rob Penridge
    Hi All I've just started a new job and noticed that the analysts computers are connected to the network at 100Mbps. The ODBC queries we run against the MySQL server can easily return 500MB+ and it seems at times when the servers are under high load the DBAs kill low priority jobs as they are taking too long to run. My question is this... How much of this server time is spent executing the request, and how much time is spent returning the data to the client? Could the query speeds be improved by upgrading the network connections to 1Gbps? (Updated for the why): The database in question was built to accomodate reporting needs and contains massive amounts of data. We usually work with subsets of this data at a granular level in external applications such as SAS or Excel, hence the reason for the large amounts of data being transmitted. The queries are not poorly structured - they are very simple and the appropriate joins/indexes etc are being used. I've removed 'query' from the Title of the post as I realised this question is more to do with general MySQL performance rather than query related performance. I was kind of hoping that someone with a Gigabit connection may be able to actually quantify some results for me here by running a query that returns a decent amount of data, then they could limit their connection speed to 100Mb and rerun the same query. Hopefully this could be done in an environment where loads are reasonably stable so as not to skew the results. If ethernet speed can improve the situation I wanted some quantifiable results to help argue my case for upgrading the network connections. Thanks Rob

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  • Lost connection to MySQL server during query

    - by Otavio
    I have a huge table and I need to process all rows in it. I'm always getting this Lost connection message and I'm not able to reconnect and restore the cursor to the last position it was. This is basically the code I have here: # import MySQLdb class DB: conn = None def connect(self): self.conn = MySQLdb.connect('hostname', 'user', '*****', 'some_table', cursorclass=MySQLdb.cursors.SSCursor) def query(self, sql): try: cursor = self.conn.cursor() cursor.execute(sql) except (AttributeError, MySQLdb.OperationalError): self.connect() cursor = self.conn.cursor() cursor.execute(sql) return cursor # # db = DB() sql = "SELECT bla FROM foo" data = db.query(sql) for row in data: do_something(row) # But I'm always getting this: # Traceback (most recent call last): File "teste.py", line 124, in <module> run() File "teste.py", line 109, in run for row in data: File "/usr/lib64/python2.5/site-packages/MySQLdb/cursors.py", line 417, in next row = self.fetchone() File "/usr/lib64/python2.5/site-packages/MySQLdb/cursors.py", line 388, in fetchone r = self._fetch_row(1) File "/usr/lib64/python2.5/site-packages/MySQLdb/cursors.py", line 285, in _fetch_row return self._result.fetch_row(size, self._fetch_type) _mysql_exceptions.OperationalError: (2013, 'Lost connection to MySQL server during query') Exception _mysql_exceptions.OperationalError: (2013, 'Lost connection to MySQL server during query') in <bound method SSCursor.__del__ of <MySQLdb.cursors.SSCursor object at 0x7f7e3c8da410>> ignored # Do you have any idea?

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  • Mysql SELECT FOR UPDATE - strange issue

    - by Michal Fronczyk
    Hi, I have a strange issue (at least for me :)) with the MySQL's locking facility. I have a table: Create Table: CREATE TABLE test ( id int(11) NOT NULL AUTO_INCREMENT, PRIMARY KEY (id) ) ENGINE=InnoDB AUTO_INCREMENT=13 DEFAULT CHARSET=latin1 With this data: +----+ | id | +----+ | 3 | | 4 | | 5 | | 6 | | 7 | | 8 | | 10 | | 11 | | 12 | +----+ Now I have 2 clients with these commands executed at the beginning: set autocommit=0; set session transaction isolation level serializable; begin; Now the most interesting part. The first client executes this query: (makes an intent to insert a row with id equal to 9) SELECT * from test where id = 9 FOR UPDATE; Empty set (0.00 sec) Then the second client does the same: SELECT * from test where id = 9 FOR UPDATE; Empty set (0.00 sec) My question is: Why the second client does not block ? An exclusive gap lock should have been set by the first query because FOR UPDATE have been used and the second client should block. If I am wrong, could somebody tell me how to do it correctly ? The MySql version I use is: 5.1.37-1ubuntu5.1 Thanks, Michal

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  • cakephp paginate using mysql SQL_CALC_FOUND_ROWS

    - by michael
    I'm trying to make Cakephp paginate take advantage of the SQL_CALC_FOUND_ROWS feature in mysql to return a count of total rows while using LIMIT. Hopefully, this can eliminate the double query of paginateCount(), then paginate(). http://dev.mysql.com/doc/refman/5.0/en/information-functions.html#function_found-rows I've put this in my app_model.php, and it basically works, but it could be done better. Can someone help me figure out how to override paginate/paginateCount so it executes only 1 SQL stmt? /** * Overridden paginateCount method, to using SQL_CALC_FOUND_ROWS */ public function paginateCount($conditions = null, $recursive = 0, $extra = array()) { $options = array_merge(compact('conditions', 'recursive'), $extra); $options['fields'] = "SQL_CALC_FOUND_ROWS `{$this->alias}`.*"; Q: how do you get the SAME limit value used in paginate()? $options['limit'] = 1; // ideally, should return same rows as in paginate() Q: can we somehow get the query results to paginate directly, without the extra query? $cache_results_from_paginateCount = $this->find('all', $options); /* * note: we must run the query to get the count, but it will be cached for multiple paginates, so add comment to query */ $found_rows = $this->query("/* do not cache for {$this->alias} */ SELECT FOUND_ROWS();"); $count = array_shift($found_rows[0][0]); return $count; } /** * Overridden paginate method */ public function paginate($conditions, $fields, $order, $limit, $page = 1, $recursive = null, $extra = array()) { $options = array_merge(compact('conditions', 'fields', 'order', 'limit', 'page', 'recursive'), $extra); Q: can we somehow get $cache_results_for_paginate directly from paginateCount()? return $cache_results_from_paginateCount; // paginate in only 1 SQL stmt return $this->find('all', $options); // ideally, we could skip this call entirely }

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  • MySQL Relational Database Foreign Key

    - by user623879
    To learn databasing, I am creating a movie database. To associate multiple directors with a movie, I have the following schema: movie(m_ID, ....) m_director(dirID, dirName)//dirID is a autoincrement primary key m_directs(dirID, m_ID) //dirID, m_ID are set as foreign Keys in the mysql database(InnoDB engine) I have a program that connects to the db that needs to add a movie to the database. I can easily add a new entry to the movie table and the m_director table, but I am having trouble adding a entry in the m_directs table. INSERT INTO m_director (dirName) VALUES("Jason Reitman"); INSERT INTO m_directs (dirID, m_ID) VALUES(LAST_INSERT_ID(), "tt0467406"); I am using this sql statement to insert a new director and add the association to the movie. I know the primary key of the movie, but I don't know the dirID, so I use LAST_INSERT_ID() to get the last id of the director just inserted. The problem I am having is that I get the following error: MySql.Data.MySqlClient.MySqlException (0x80004005): Cannot add or update a child row: a foreign key constraint fails (`siteproducts`. `m_directs`, CONSTRAINT `m_directs_ibfk_2` FOREIGN KEY (`dirID`) REFERENCES `m_directs` (`dirID`) ON DELETE CASCADE ON UPDATE CASCADE) Any ideas?

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