1. Problem with JMX query of Coherence node MBeans visible in JConsole stackoverflow.comI'm using JMX to build a custom tool for monitoring remote Coherence clusters at work. I'm able to connect just fine and query MBeans directly, and I've acquired nearly ... |
2. What is the JDBC equivalent to query an IBM Domino data store? stackoverflow.comI need to query an IBM Domino data store that was populated using Lotus Notes from within a Java application. I am hoping that IBM followed the JDBC design pattern ... |
3. What database APIs in C++ and C# are equivalent to JDBC in Java? stackoverflow.comI have not done database programming in C++ and C# before, but did some in Java. Now I am asked to figure out the options to do it in C# or ... |
4. Problem with db4o (java) when running a query stackoverflow.comI'm glancing through parts of the official db4o tutorial, and I'm trying to make a modification to the code they give you for running native queries: |
5. Prevent bots to query my database several times stackoverflow.comI'm building an application that is a kind of registry. Think about the dictionary: you lookup for a word and it return something if the word is found. ... |
6. jdbctemplate query() vs entityManager createQuery() stackoverflow.comWhat is essential difference between these methods? query() of JdbcTemplate and createQuery() of EntityManager? As I understand, both execute query? |
7. How to return an ArrayList from a database query? stackoverflow.comI am querying a database for a web service using the Jersey JAX-RS. I can return a single row as XML or JSON, but I can't figure out how to return ... |
8. Efficient natural language data structure, persistence and querying stackoverflow.comFor use in a language-learning web application, do you know of data structures and underlying database schema/ layout that would allow efficient storage, processing and querying of sentences, verbs, nouns etc. ... |
9. Database handling by mutipl host stackoverflow.comI am using database in one server .I wanted to access that database from multiple location but issue is that when one access that data in the table no body can ... |
10. Database-independent queries to the extreme in Java... or in general stackoverflow.comLet's say I have an app that should ideally be able to use a relational database, object database, XML files, or whatever to persist its data. In the spirit of coding ... |
11. JDBC query + Scanner.next() gives InputMismatchException stackoverflow.comI have written the simplest implementation of DBMS using Java's JDBC. In my app I gve users ability to perform CRUD operations on some simple mysql database. Everything done in console. ... |
12. jdbc validation query stackoverflow.comIs there a library which can determine for a jdbc driver class the appropriate validation query to use? For example If the jdbc driver is com.mysql.jdbc.Driver or com.mysql.jdbc.jdbc2.optional.MysqlXADataSource the library will know ... |
13. preparing query based on input values in java stackoverflow.comI dont know whether it is possible or not,But here is my question: I am getting 13 input fields,based on input |
14. What to use to store serialized data that can be queried? stackoverflow.comI need to extract data from an incoming message that could be in any format. The extracted data to store is also dependent upon the format, i.e. format A could extract ... |
15. Query View doesn't return any values in couchdb stackoverflow.comI have a view defined as: |
16. can i execute two different queries in a single method using jdbc code stackoverflow.comcan i execute two different queries in a single method using jdbc code.. |
17. XSLT with database querying stackoverflow.comI've been doing XML transformation for a while in my Java application and I'm still not clear what the options are and what the best option is to read records from ... |
18. Any Suggestion for Optimization of Query with EO model? stackoverflow.comI am trying to fetch data from a table which have very huge data some. i am using Java Webobject and EOmodel. While i am trying to fetch with a indexed column i ... |
19. How to query a UTF-8 database using JDBC stackoverflow.comMy DB2 database is using UTF-8 encoding. The source table has one colum with UTF-8 text like these lines below |
20. Determining whether query will change DB stackoverflow.comHow can I determine that particular query will change the state of DB? I use JDBC. Should I use parsing searching for key words like INSERT, DELETE or there are some other ... |
21. JdbcTemplate problems with nested queries stackoverflow.comI'm trying to use nested queries with JdbcTemplate but found the issue, it seems to me that it's doesn't suppot nested queries.. Am i right? or what i need to change? So, ... |
22. What is the best way to reset the database to a known state while testing database operations? stackoverflow.comI'm writing tests with JUnit for some methods operating on a test database.
I need to reset the database to the original state after each |
23. In Java, should each query be in a seperate thread? stackoverflow.comIf an application is blocking until a query returns a response, doesn't it make sense to put each execute queries on a thread pool? |
24. JavaScript and Java Querying of CouchDb stackoverflow.comI am looking at Couch Db and I saw Ektorp that presents a JPA like interface for database. However I see that there are examples that how to make query at ... |
25. ADF Query - display all data on initial page load stackoverflow.comI have a page with ADF Query and Trinidad table. Searching with af:query works well and populates the table with data. On initial page load (when I enter the page for ... |
26. How can I query VSAM data from Java? stackoverflow.comIs there a way (JDBC, Resource Adapter, etc) to query VSAM data from Java? Do solutions require something be installed on the VSAM system? If JDBC, what limitations exist ... |
27. How to execute a given query? stackoverflow.comI am totally new to JDBC programming and need some urgent help..could anyone provide me the java code to take a query as user's input and provide the appropriate result??Many thanks ... |
28. Find the post format of a submit link stackoverflow.comI am trying to query an online site that is connected to a SNP to GO DB. The site allows the user to enter a list of SNPs and it ... |
29. Query From Database forums.netbeans.orgHow do I use the sql query to retrieve data from the database. For example I want to get the data from a table named "a". "Select expirydate from a where ... |
30. custom queries (where clause) in JavaDB programs forums.netbeans.org |
31. ExplorerManager working as database query forums.netbeans.orgI can't see why it would matter what kind of a node your talking about, your |
32. JDBC creating query when user clicks button forums.netbeans.orgHello all, I am working on a small database and would like the results of a query to be displayed in the gui I have created in their respective areas. But when I click the button I get this error: at org.apache.derby.client.am.ResultSet.getString(Unknown Source) at desktopapplication8.DesktopApplication8View.jButton1ActionPerformed(DesktopApplication8View.java:617) Here is the Query code I am using: |
33. jdbc query (ASAP) jmeter.512774.n5.nabble.comHi All, In the database of my web applicaton i have around 50 users i want to use jbbc request two retrieve all the 50 users The test plan looks like this ... |
34. jdbc query jmeter.512774.n5.nabble.comHi All, I am doing performance testing of a sql query, In the database of our web applicaton i have around 50 users i want to use jbbc request two retrieve all the 50 users records. ... |
35. JDBC query to fill in a form jmeter.512774.n5.nabble.comHey, I have a web application which mainly involves filling up forms. I want to test this application. However one of the parameters in the form has to be filled up by after making a database (sql)query based on which I get the info. What is the best way to go about this? Can I use the JDBC SQL request feature ... |
36. Response Times of each query executed by a JDBC Request Sampler jmeter.512774.n5.nabble.comPrasanna, The JDBC Request records the same sampler times as all of the other samplers. So, you can use any of the listeners, e.g., Aggregate Report. Steve Eckhart Business Analyst/Project Manager WAUSAU Financial Systems 14010 FNB PKWY STE500 Omaha, NE 68154-5206 Enterprise Payment Solutions. CONFIDENTIALITY NOTICE: This electronic transmission (including files attached hereto) is intended only for the use ... |
37. Jboss portal server DB customaization query coderanch.comHi, I was trying out a small program where I add a new column in the existing table (jbp_users) which comes(gets created) with jboss portal server 2.6.4. and the database is in MS SQL Server2005. I have created a new property "age" and have changed appropriate files to add this new property. Files changed to add new property : Identity.properties profile.xhtml ... |
38. Can a web service query a database? coderanch.com |
39. PDA application for querying a database driven site coderanch.comHello! I should develop an application able to run on PDA devices.Such application should be able to access to a database driven web site. (The web site is very complex and has an its own business logic, so it is no possible to redesign it). It should be possible to view the content of the site (with a layout that fits ... |
40. Ignoring case in queries......... coderanch.comHi, Is there a way I can make SQL queries case-insensitive in the select statement itself ? I'm passing user entered values to a prepared statement. My select statement looks like : SELECT EMPNO,EMPNAME FROM EMPLOYEE WHERE EMPNAME LIKE ? I'm using preparedStatement.setString(1,inputValue). Instead of modifing the inputValue with String class(ie,changing its case to format it to Mallika or Kumar,ie first ... |
41. Optimizing queries coderanch.comHi, I have a query tool which gets results based on inputs provided by users. I have several different SQL JOIN statements involving 6-8 tables in each query. Some involve outer joins too. I would like to know what steps should be taken to make these queries efficient and quick. I have been using the concept of having the smallest table ... |
42. Indexes in queries coderanch.comHi, Can someone explain when indexes will be used and when they won't be used in queries ? I have the following cases: 1. Select statement uses outer joins. 2. Select statemet uses like %a% statement. SELECT E.EMPNAME FROM EMPLOYEE E,ADDRESS A WHERE E.EMPNAME LIKE %A% AND E.ADDRESSNO = A.ADDRESSNO(+) In the above sample select statement, which colums should have index ... |
43. jdbc cancel query coderanch.com |
44. Why do these queries break this loop????? Im lost! coderanch.comIve got this loop in a servlet that needs to do multiple queries on seperate tables in a db.(MySql) I have to do it in seperate queries because a join is impossible with the data I am trying to return. Anyways if you look at the loop you will see the 2 inner queries & their corresponding if statements. If I ... |
45. using wildcards literally in queries coderanch.comHi, I want to retrieve rows from an Oracle table which has values like "sp_bowl" or "asp_007" etc. My query is like SELECT MYROW FROM MYTABLE WHERE MYCOLUMN LIKE ? I'm using PreparedStatements, and passing Strings using preparedStatement.setString(1,"%"+myString+"%"). When the use enters "sp_" as the string to be passed to the query, I'm getting all rows which have "sp" in them, ... |
46. how to handle single qotes (' ') in query coderanch.com |
47. Multiple databases in a single query coderanch.comthanks for your reply, could you elaborate it further please? Also the the databases in question can be from different vendors e.g. oracle, ms sql, sybase etc. Database d1 could be oracle and Database d2 could be sybase thus is there any way to establish that the driver associated with these individual databases support multiple databases in the single query Is ... |
48. PL/SQL query vs Stored Procs in JDBC coderanch.comYour boss is recommending something that goes against the purpose of using stored procedures. Remember that sp's are precompiled and optimized by Oracle. They are ready to be executed yielding very fast performance. If you pass the sp as a string in a callable statement, or even just a statement, Oracle has to compile and optimize the sp before it will ... |
49. data migration query coderanch.comhi friends i am migrating database from MS access-Oracle 8i through SQL loader.My problem is if initially i have say 10 columns in my table and after that i add 1 more column in that table,now i want to add the data for the new column only through SQL loader,i don't want to made any changes in the previous records.How to ... |
50. Simple query problem coderanch.comHi, I am using JDBC to connect to an Access table. I have a simple table called: Student (StudID, FName, LName, Marks) I would like to find out the student with the highest marks: SELECT StudID, max(Marks) AS maxMarks FROM Student GROUP by StudId I get multiple rows returned whereas I need only the highest one. I am facing a similar ... |
51. reduce querying ODB coderanch.comHai, I have a oracle 8i database consisting of 10000 records in a table, Now i have to check nearly more than the number of records wether the specified record is there in database or not.so what i do is every time i make the query and check in the database. Is there any method to reduce my program execution. Even ... |
52. My query is not working!!! coderanch.comHi Roy, Thank you so much for your help I added executeQuery but regarding second point I'm not sure my query is correct I put text in ' ' Am I correct?(since still ID=0 and is not returning any thing...) Many thanks, Elahe -------------- stmt = con.createStatement(); PrepStmt =con.prepareStatement("select ID from statusdesc where text ='"+text+"'"); PrepStmt.executeQuery(); System.out.println("ID"+ID); |
53. Problem with querying coderanch.comMy last post won't work at all! Sounds like you may have to rethink the way you store your date data. It can be awkward to compare the dates if you separate the year, months, and dates into number columns. You'll have to do some fancy innefficient conversions every time you need to query the database with a between dates in ... |
54. Building Dynamic Query coderanch.comI am creating a search engine for my database. I have JCheckBoxes that enable/diable JTextFields and/or JComboBoxes. I need to build a query based on what the user has selected and what has been typed in the textFields. Right now, there are a huge amount of IF statements in my code. But I was wondering if anyone knows a better, more ... |
55. jdo query using boolean flag (bit) coderanch.comthe jdo spec makes the comment: "ordering specification: the ordering specification includes a list of expressions with the ascending/descending indicator. the expression's type must be one of" and then it gives a list, at the top of which is: *primitive types except boolean; I read this to indicate that I cannot order by a boolean flag. Fine, whatever. But I can't ... |
56. memory problem during query coderanch.comHello, I have a question concerning the performance of a database query. The problem is as follows : I have a jList with items... When the user selects one, a query is made on the database to do a selection of fields which are then displayed in a jTable (I use an AbstractTableModel to obtain this). Everything works fine except when ... |
57. wrong query? coderanch.com |
58. Using JDBC on local m/c to query local db coderanch.com |
59. Query Timeout coderanch.com |
60. Query question coderanch.comElahe, if you want to make a calculation on grouped columns, then you should use subqueries. eg. SELECT (tPoints.coef2 - (select Min(coef2) from tPoints )) / (( select Max(coef2) from tpoints) - (select Min(coef2) from tPoints )/5)) FROM tPoints group by tPoints; The above query should give you (column_value - minimum coef2 in the tPoints table) / (maximum coef2 in the ... |
61. Implementing a query time-out coderanch.comHi, I'm trying to implement a query execute time-out in a Servlet using JDBC. The Servlet class throws an Thread for each query request, and waits for it's finish in a regular time. If ocurs a time-out, the main Thread interrupts the query Thread and returns an error to the client. The problem is, what should i make with the Connection ... |
62. Query Dependent on first coderanch.com |
63. Printing a Database Query coderanch.comhello, i'm a student and i'm have problems with a work i must do to school...I'm doing a database query to a SQL database (Northwind) and making a query of select *from (table)....and i'm trying to do a print and print preview of the result...but have many problems... The code the query is: public class Reporting extends JFrame { private Connection ... |
64. query involving one to many relationship coderanch.comI am using a mysql database for a bookshop project i am working on. I am trying to run a select query to retrieve a list of book ISBNs, titles and authors that meet certain criteria. My problem is this: I have set my database up so that there is a many to many relationship between authors and books, so I ... |
65. Verifying Queries coderanch.comHi all, Is there any Query parser which will look at the Query and tell me that the Query is right. I m writing a Gui appln to allow user to write a qry thru a gui.After the qry is formed i need to chk if the qry is properly generated. Thanks in adv, Chinmay.. |
66. Query database coderanch.comI need to get some information from a table and use it to populate a vector. I have examples of how to query the table but I don't have any examples on what to do with the info once I get it. Like once I get a stockname from the table how do I refer to that in the program. Am ... |
67. java querying a database coderanch.com |
68. How to deal with two queries coderanch.comHi Ariane, According to the code you have posted, it looks (to me) like you are trying to simultaneously open two different "ResultSet" objects using the one "Statement" object. As far as I know, this cannot be done. If I remember correctly, when you execute the second query, the first "ResultSet" is implicitly closed. (Hence the error message you claim to ... |
69. Need help with a query thats driving me insane coderanch.com |
70. Designing a multiple Join query coderanch.comHi, Just wanted to have some opinion on the fact that what will be the best way to design a query that is joining around five tables with around 80,000 rows and returns a resultset of around 170 thousand rows. I have ruled out outer joins as they are too slow. The problem is that when i run the query on ... |
71. Dynamic Query Techniques coderanch.comThe hardest thing for me when developing any kind of database app in java is when it comes to building dynamic queries within the application. For example, let's say you have 5 fields in a table and you can search for criteria based on 1-5 fields. So in the GUI you have 5 TextFields to be field in or left blank. ... |
72. Query Optimization coderanch.comHi Only way to do the query optimisation is to populate the database with representative data (i.e a large number of records which are similar to those that you expect to see in production) and then examine the execution plan that is generated by the database server when you execute the SQL statement. Using the execution plan identify any horrors such ... |
73. Query Question coderanch.comThis is probably more of an SQL question than a JDBC question, but I'll ask it anyway. I am updating an application I wrote where I assign trouble tickets to techs. I am updating it to assign multiple techs to 1 ticket and then any 1 of those techs will eventually accept the ticket. My problem is I can't figure out ... |
74. Novice query.... coderanch.comHi, Excuse me if this sounds dumb, still learning this stuff... I have happily been working on a web app connected to a mysql databse on my pc using Tomcat for a while. Now I've come to put it on a web server, I seem to be having connection problems to the database. As I see it, this could be down ... |
75. Any one have idea regarding this query?? coderanch.comHi, I am trying to insert a value from table1 to table2. table1: name address city Ahamed XYZ Germany table2: name address city Rose XXYYZZ ? Which SQL statement i have to use for inserting table1 value 'Germany' into table2 column city ?? looking for solution... I am using MSAccess 2000 and jdk1.4. Help would be appriciated. Thanks, Ahamed. |
76. Which type of query should be use?? coderanch.comHi, Is it posible to insert single colume value from one DSN table to another DSN table. table: DSN1 Name Adrress City aaa bbbb xxx ccc sss yyy table: DSN2 Phone Job City eee ttt qqq kkk Finally the DSN2 table look like table: DSN2 Phone Job City eee ttt xxx qqq kkk yyy Any sql quely like inserting DSN1table City ... |
77. Which type of query should be use?? coderanch.comHi, Is it posible to insert single colume value from one DSN table to another DSN table. table: DSN1 Name Adrress City aaa bbbb xxx ccc sss yyy table: DSN2 Phone Job City eee ttt qqq kkk Finally the DSN2 table look like table: DSN2 Phone Job City eee ttt xxx qqq kkk yyy Any sql quely like inserting DSN1table City ... |
78. how to make data retrieval / query faster coderanch.comHi I am confused about one thing. In the web context if i have a very large amount of data and i want to show it in html, it will take a very long time to retrive the data and than to show it. is there going the be a connection time out problem? Lets say if i have more than ... |
79. how to execute complex queries coderanch.comhai all, I wrote a app where i will give complex sql queries which may contain several joins. my program works with simple sql queries but throws exception when i give this complex quries. then how to solve this prob. I use createStatement() method. one more thing is when & how to use callablestatements? bye siva. |
80. how to execute complex queries coderanch.comhai all, I am writing an application where I am using JDBC to connect to access database. I am using the DSN to connect to the Database. I use the method createStatement() to create a statement object thro which I get a resultset by passing a query to the executeQuery() method. Whenever I give a simple query everything works fine but ... |
81. a database aware query coderanch.comI would like to create a query that will read the username and passwords and also the user groups of around 200 people; in a static method, so that I will not be required to make a connection to the database for each coming login/password check. But still stays a problem, during the time the database might change, maybe a user ... |
82. writing ineer query coderanch.comHello i have a doubt in writing ineer query .This is my query where all the fileds are in the same table named category and this works fine if i manually give the values in () where select PCategory_Id from catgory is written.can any one help me out fast in resolving this??? SELECT Category_Id,Category_Name FROM category where Category_Id not in (Select ... |
83. Simple queries or Stored Procedures?? coderanch.comDavid, A stored procedure is useful if it can eliminate network traffic. For example, if I want to collect values from different tables and insert them into a new table, a stored procedure is useful. If I have a simple query that can be execute in one shot, like select name from table, a stored procedure does not provide additional benefits. ... |
84. PreparedStatment for Search Queries coderanch.comHi, In my application I have a search page in which the user can enter various search criteria. For example on one of the search pages there are 5 input fields. 2 of them are date fields one is numeric and the 2 are text fields. The user can enter search values in any of the fields. assuming the entered value ... |
85. Complex query coderanch.comI am currently in a situation where i have to write a query, the WHERE clause of which is a bit unusual. In the WHERE clause it is not the values to be compared that are variable, it's the columns themselves that are variable. The situation is such: As I am retreiving the rows, part of the where clause depend on ... |
86. Informix query timeout coderanch.com |
87. How to make a query faster. coderanch.com |
88. Multiple query problems coderanch.com |
89. Query Estimation coderanch.comWe will be constructing a VLDB that allows end users to build and execute dynamic queries. We plan to queue expensive queries using JMS, and execute cheap queries immediately. Can you suggest a means to estimate the cost of running a SQL query in Java? This will be against an Oracle 10g database. I am familiar with explain plan, but I ... |
90. plz have a glance at this query coderanch.com |
91. How to specify time out for a query coderanch.com |
92. Dynamic Query tool coderanch.comI have been breaking my head since one week to come up with a novel solution for the following problem: Lets take a typical database schema. It contains number of tables, of which , ... some have primary key/foreign key relation ship, ... there can be one or more tables which mediate to form a relation between two tables. User has ... |
93. Microsoft Access Store Query coderanch.comOriginally posted by Allen Tomas: Thank you for replying. However, I was actually looking helping in accessing a pre-defined query in access using jdbc connection. For example, in Access you could create a query and save as (for argument sake) myquery. Then in my java code, I want to access that query "myquery" and process it. It is sort of like ... |
94. query problem coderanch.comIn my jsp, I'm trying to pull data from a MS SqlServer 2000 db.I have a panelists table and a survey table. Panelists primary=record_id, which relates to panelist_id in the survey table. I want to pull data for panelists who have yet to complete a survey(i.e. panelists.record_id != surveys.panelist_id). I'm getting a null pointer exception. When I do a query for ... |
95. query with the value as null coderanch.comI get 1000 row with with select * from table1 but less row with select * from table1 where scheduling =2; 400 row and select * from table1 where scheduling !=2; 200 row. I checked the DB, there is data (400 row ) schduling as null. how can get the result for scheduling as null? Thanks a lot |
96. quoting in queries coderanch.comThere's a syntax error in your second example, so that one's wrong. To answer your real question, I would always use single quotes when writing SQL queries as not all RDBMS support double quotes. I'm not sure what the ANSI standard says about it. From a JDBC perspective I'm not sure if it matters as I believe the query string will ... |
97. Null Pointer Exception on stmt = conn.prepareStatement( query); coderanch.comI configured the Tomcat 5.0.27 for using the connection pool feature and connecting to the Oracle. I am testing if I did the configuration correctly. Therefore, I try to retrieve some data from a table. I got the 'Null Pointer Exception" when executing the stmt = conn.prepareStatement( query ); I am not sure where the problem is from. 1. configuration is ... |
98. Tips for Better JDBC querying coderanch.comHi e'body, Well, I am in a project where you query {DB2} database tables, having more than a million records; So what do you guys think is a better way to handle such a situation?? I anyway use DataSource Connection Pooling; any tips on optimized ways of querying is greatly appreciated..!! looking forward to hear from you guys.. i know, you ... |
99. Query coderanch.comWhats wrong with my String command.I cant figure out my quotes>i keep getting a syntax error public int amendProduct(int id, String name, double price) throws DaoException { Connection con = null; Statement stmt = null; int rows = 0; try { con = getConnection(); stmt = con.createStatement(); String command = "UPDATE Product SET item = " + id + " WHERE ... |
100. Help me optimize this query coderanch.comI am trying to execute this query (MySQL DB) and it is failing with Table is full error (I know I can make temp tables big). update t1, t2 set t1.XXX=1 where t1.YYY=t2.ZZZZ and t2.AAAA like '%X%'; My t1 has 10,00,000+ records and t2 has about 70,000 recorsds. I would like to know how can I optimize this query? What are ... |