Suppose you have a collection of a few hundred in-memory objects and you need to query this List to return objects matching some SQL or Criteria like query. For example, you ... |
Using JDBC (with jt400 driver / connection, naming=system) I'm running these SQL statements:
"CREATE ALIAS QTEMP/SOURCETEMP FOR " + library + "/" + file + " (" + member + ")"
"SELECT SRCDTA ...
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which method do you prefer for creating dynamic sql queries?
formating or streaming?
Is it just preference or there any reason one is better than other?Or any special library you use to it.
EDIT:
Please ... |
Is there any way to perform SQL Like Queries or Filtering on Java Data Structures?
I want to filter objects in an ArrayList and a HashMap by fields of the objects contained ... |
We are using a mix of EJB 2.1 and JDBC to access our Database.
I just had a co-worker mention the idea to put his SQL Queries into a .properties file. ... |
I was wondering if there is any library that can be used to represent SQL queries as objects in Java.
In the code I have plenty of static variables of type java.lang.String ... |
I have the following db schema.
SQL> describe USERS;
Name ...
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- I'm creating a JasperReport using iReport, and as such, I'm limited* to one SQL query.
- I have a table 'statistics', with a 'name' (VARCHAR), 'count'(INTEGER), and 'datetime'(DATETIME) columns.
- It is simple enough to ...
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All,
SQL 2005 sp3, database is about 70gb in size. Once in a while when I reindex all of my indexes in all of my tables, the front end seems to freeze ... |
I am currently writing an application for monitoring SQL queries produced by a web application. I am interested in monitoring the SQL queries being sent by a given application passively. That ... |
I have a SQL query
SELECT * FROM Thing AS a JOIN Thing_Property AS b ON a.id=b.Thing_ID
JOIN Property AS c ON b.properties_ID = c.id
JOIN ...
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I have been asked in an interview to write a SQL query which fetches the first three records with highest value on some column from a table. I had written a ... |
I just read this post and i wonder if there is something like this for querying jboss log file.
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in my project I have a database which many clients connect to. Concurrent access and writing works well. The problem now is not to reload the data every second from the ... |
I want to get to the value I am finding using the COUNT command of SQL. Normally I enter the column name I want to access into the getInt() getString() method, ... |
I am trying to execute the SQL statement from my java application
Due website restriction on url I have replaced http=htp for this post.
SELECT DISTINCT(DID)
FROM (SELECT e_id DID,
...
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Note - this follows my question here: http://stackoverflow.com/questions/2983685/jdbc-does-the-connection-break-if-i-lose-reference-to-the-connection-object
Now i have a created a class so i can deal with JDBC easily for the rest of my code -
public class Functions ...
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Not able to execute a query ,i need to check if end date is greater than today in the following query
Getting an error invalid query
select * from table1 where user ...
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I have a problem executing queries having comments via JDBC. Can you help us?
This works:
select * from notf_worklist; SELECT * FROM NOTF_TASK_INSTANCE
The following query throws an error:
"Error :com.microsoft.sqlserver.jdbc.SQLServerException: The index 1 ... |
http://stackoverflow.com/questions/3064330/how-to-map-xmltype-with-jpa-hibernate
I have done XMLType mappings with Hibernate @Type with the help of above URL.
It works fine when I persist with the data type HibernateXmlType. It has results however, it throws ... |
How to read sql query from xml using java
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I am getting a set of data from the database where the query produces a repetition of data with a different "Special" value. For example the user "A" can be repeated ... |
String link = "http://hosted.ap.org";
I want to find whether the given url is already existing in the SQL DB under the table name "urls". If the given url is not ... |
import java.net.URL;
import java.net.URLConnection;
import java.sql.*;
public class searchlink{
public static void main(String args[]) throws Exception {
//String link="http://hosted.ap.org";
Connection con=null;
Statement stmt=null;
...
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Is there a way, in JDBC, to execute a generic query ?
I mean run something like execute(String strSql) where strSql could be a SELECT, an INSERT, an UPDATE,a CREATE,... or whatever.
If ... |
while (tokens.hasMoreTokens())
{
keyword = tokens.nextToken();
System.out.println("File= "+fileid+" Keyword=" + keyword);
stmt.executeUpdate(
"INSERT into TEXTVALUEINVERTEDINDEX ...
|
Hi I am doing a task using socket programming,in this I have database on server side and whenver any employee update any table ,server should notify all employee by triggring pop ... |
IF I have a query like:
Then while doing it, should I write each entry from the table to get the output. like
Now How I get all the entries of my table ... |
what is the best place to place SQL queries in an application?
The queries might be big and requires formatting.
Appending the query using StringBuilder looks very cluttered.
Storing them in files and reading ... |
I have a class DBHandler which takes a query, runs it through the SQL server, checks for errors and returns the result. How can I unit test this class?
Edit: I'll try ... |
I understand how to do this on paper in SQL, but am having trouble implementing this in Java (this is the first time I am actually programming JDBC stuff)
For example, say ... |
We have an application where the user is allowed to enter expressions for performing calculations on the fields of a database table. The calculations allows various types of functions (math, logic, ... |
I'm trying to transfer an SQL query into java from my workbench.
I wrote this query in the mySQL workbench and it executed fine with the results I wanted.
SELECT committee_member.member_CAN#, member.first_name, member.last_name, ... |
I'm cleaning up my code, should i change the following function to a MySQL query? If so what would be a nice MySQL function to achieve this functionality?
public ArrayList getNewTitles(ArrayList candidateTitles, ...
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I have constructed a Jasper Report using iReport tool, where in I have registered two data sets, one to polulate the data in a table, and other to display a chart. ... |
I am authoring a javabean and would like to know if it should include properties to set values obtained from a sql join?
Say I have database tables for Products and Orders. ... |
sql = "select milk_rate from special_milk_rate
where code_producer_id=? and effective_from <= ?
and effective_till ...
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I have a DAO with a method CommitmentListDAO.getListByOwnerBadge that returns an arraylist of commitment items against a supervisor badge (database field OWNED_BY)
String SQL_VIEW_LIST_BY_SUPERVISOR = SELECT_QUERY +
...
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trajectory table
OBJID PLACE
...
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SELECT MAX(sm_version) AS version_latest,
user_type AS role_performed
FROM usage_database
WHERE user_id LIKE ( '"+%eid_upper+"' ) ...
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The following sql query executes fine when ran in TOAD editor and shows results,but does not fail or
show results when placed in java code.
CREATE TABLE CDRRD.C31820_ADHOCM ...
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I am writing a java program which will create a database LocalStations where it needs a value maxStationid
int maxStationId;
I want to assign maxStationId with the total number of cells in the ... |
UPDATE `company` SET `itnumber` = '595959' WHERE (id = 932)
So the value of itnumber is coming from user input for that company. I want to make sure I am able ... |
Are there any good utils/frameworks which could generate Java Object for SQL Query?
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Class.forName("oracle.jdbc.driver.OracleDriver");
Connection connect =DriverManager.getConnection("jdbc:oracle:thin:@172.17.0.14:1521:develop","sis","psgh");
String qry=("update sample set one=2 where two=3");
PreparedStatement ps = null;
ps=connect.prepareStatement(qry);
int i=ps.executeUpdate();
if(i==1)
out.println("success");
else
out.println("failed");
The above code is not working
The table is
create table (one ...
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Following on from one of my previous questions to do with method design I was advised to implemented my SQL queries as a parameterized query as opposed to a simple ... |
Possible Duplicate:
I want to search all the person in city by giving the city name
How do I search all the persons in the religion by giving ... |
In java, do we have an open source to generate sql from an xml file? For example, the simplest case is :
<query>
<select>id</select>
<from>student</from>
<equal><column>name</column><val>john</val></equal>
...
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So I have a doPost method in an order checkout servlet which checks the value of a 'commit' parameter and is supposed to insert an order record into the database if ... |
using a CRUD and want o access a certain value in the databse. what I tried is:
Query query = em.createNativeQuery("select o from Table o where o.IDfield= '938'");
Table o = (Table)query.getSingleResult();
but ... |
I have an data centric & data sensitive application, which is written using java, but almost all the business logic is maintained in a .sql files.
These sql files are executed 1 ... |
I recently had a discussion with another developer who claimed to me that JOINs (SQL) are useless. This is technically true but he added that using joins is less efficient than ... |
We are developing an application which uses JDBC API. We deal with lot of queries
for various use cases. Any idea on how to isolate these SQL queries out of ... |
I am using SQL Server 2008 and Java 6 / Spring jdbc.
We have a table with records count ~60mn.
We need to load this entire table into memory, but firing select * ... |
I need to know of any open-source sql query/builder tool in java. The thing is, it should be able to relate & join multiple tables in my database & give me ... |
Subset returned in DAO class:
List<Map<String, Object>> agreements = getJdbcTemplate().queryForList(sqlForDataQuery.toString(), paramsForList.toArray());
It expected to be sorted,but in debug mode application returns incorrect subset - it's not sorted.
From other hand,if to execute sqlForDataQuery with ... |
I am trying to write a program that queries a mysql database.
The first dropdown box is popluated with an SQL query which returns a list of tables within the database.
The user ... |
I have been calling a stored procedure through jdbc and i have a requirement that the queries used in that stored procedure should be displayed on console.
can you suggest a code ... |
import java.sql.*;
import java.io.*;
public class User {
String s1;
int age;
String s2;
String s3;
/**
...
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I am writing an application which will have to regularly poll an SQL Databse to get the latest entries. These entries will be translated into Java Objects and passed to the ... |
Is it true that loading the data and process them programmatically is faster than SQL queries ? I am supposed to optimized the legacy applications which are running slow because of ... |
In my Java code , I have something like this :
ResultSet rs = statement.executeQuery(
... |
I want to use QueryRunner to perform an insert of an ArrayList. The only information I am finding online is for inserting one Object[]. Something along the lines of:
qr.update("insert ... |
I would like to know if when I place a sql query using java , does it retain the new lines?
for instance if i have
"IF EXISTS (SELECT * FROM ...
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I have of values (1, 2, 3, for example), and I want to pass that list to a SQL query:
"select name from tbl where id in" + list
How might I ... |
Im new to sql and im facing a problem with the below native query
public void saveOfflineBatchDetails(BigInteger user_id) {
em.createNativeQuery("INSERT INTO rst_offline_transaction_batch (created_date , user_id)" +
...
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String searchSQLFilter(String keyword){
for(String filter:new String[]{"|","&","*","%",";","-","+",",","<",">"}){
keyword=keyword.replaceAll("\\Q"+filter+"\\E", "");
...
|
The essence of my problem is that there are too many solutions, and I would like to find which one wins out in pros and cons before I build an infrastructure ... |
What (tool, library, way) can you recommend for parsing SQL query in Java?
I need to change column names in output, so for example:
I want to change query from:
SELECT a ... |
It looks like Firebird does NOT support getGeneratedKeys() after you perform an insert with an auto_increment column. So I would like to understand how I can get my hands on the ... |
I have some data coming from a machine in the following format:
A (some value)
B (some value)
C (some value) and so on.
I have a database in the Microsoft SQL server 2008 ... |
I'm having problem with an update query. following is the function I'm calling:
public static void update(ArrayList<String> arr, int id)
{
Connection conn = null;
...
|
Hy,
I have to make a query on a Facebook table witch will return xml information about number of likes and so on.I have to keep those info in database or in ... |
Is there a possiblity to clean up such a dao method?
I don't like the 2 if's for each param, but there isn't something like "query.setSql()" so i could update the sql ... |
hi am trying to insert values into SQL database using jdbc. Current code able to connect and query sql DB. am using executeupdate to insert the values .this code is ... |
i am trying to insert values into database from excel spreadsheet .am doing it using JDBC.connected both excel and sql database. i have these columns dc:Title,dc:dcid,dc:subject,dc:description,dc:publisher,dc:language in SQL database. in which ... |
Here is my code, it does get data and paste it in the Text Area as I want it to do, I was just wondering if I could change it so ... |
The following query does not return any result
SELECT user_id FROM test WHERE poll_id = 2 AND (question_id = 2 AND answer_id = 5) AND (question_id = 3 AND answer_id ...
|
I tried to read a file and write the data into database:
The file is read to store into the string array, such like
String[] result = new String[numberofToken];
then i ... |
I have to take a value from one table which I have just added using seq.nextval(say Query 1) into another table for entering further information into another table through Query 2.I ... |
How do I write queries in an XML file and bind with values using Java?
GetPerson.java:
String name='java';
String query=getQuery(name); // from XML
// query must be like this:
// ...
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Ok, so I have been searching far and wide to an answer to this question and I am most likely not wording it correctly in google but I hope that I ... |
Hi all. It seems to me that queries in the 'Execute command' window (Services -> Databases -> Execute command...) are executed twice. A small test case follows: 1) Open a MySQL connection 2) open an 'Execute command' window and create a table and a stored function to emulate a sequence id generator: DROP TABLE IF EXISTS SEQUENCE_GENERATOR; CREATE TABLE IF NOT ... |
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> I want to call a sql query and then have the data populate a soap request > > I would expect I could do something like > > THREAD GROUP > JDBC_REQUEST (select col1, col2 from table) > FOREACH CONTROLLER > ---SOAP REQUEST USING ${col1} and ${col2) > > > But no luck. > ... |
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Hi, I'm having trouble getting the resuklt recordset when I execute a SQL procedure, in a JDBC request. When I select in the Query type; "Select statement", the execution of the procedure (informix) returns a recordset with all fields field with the value for the last column of the recordset. Any ideas? Regards, ... |
> Hi Sebb, > > > Are you saying I should have 1 SQL query per JDBC request? > > Is it not poosible to have mutliple queries within one JDBC request? > > Thanks > > > Aidy > > > On 15/03/2009, sebb <[hidden email]> wrote: > > Why not just use several ... |
I am not as familiar with PL/SQL, but in T-SQL you have a TOP command. So you can say something like this: SELECT TOP 1 field FROM table ORDER BY field I'll try to find out if this is supported in PL/SQL or if there is some equivalent. Bill [This message has been edited by bill bozeman (edited April 20, 2001).] ... |
Hi there! I am trying to update a table in my access database, the code in my bean for doing this is: // Create the statement object --> Statement statement = connection.createStatement(); // Define and execute the sql update --> String update = "UPDATE user SET FNAME="+fName+",LNAME="+lName+",USERID="+userId+",PASSWORD="+password+" WHERE FNAME="+user; statement.executeUpdate(update); I get no errors so I thought everything was working just ... |
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Hi ! I have 2 tables with the following structure: Table 1: A | B | C --------- rec.1 a1| b1| c1 rec.2 a1| b2| c1 and Table 2: B | C | D ----------- b1| c1| d1 b2| c2| d2 Could someone help me with a query which finds all records from Table 2 with the pair (b,c) which are ... |
Hi ranchers, I need little assistance from you guys.I need to know is their anyway of calculating time taken by any sql query. What i want is that when user search for anything from my database i want to show a progress bar showing how much time left. Its little urgent.. Thanx for reading... |
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I cant believe I'm asking this question considering I thought I knew SQL, only I have not used it recently, hehehe, ok, here's the deal: Lets say we have a CAR and a PART table, and the relationship between them is 1-to-many, in that a CAR contains many PARTs. The table CAR has the following simple attributes: CAR.number CAR.name CAR.description CAR.weight ... |
In Airline Reservation System, I want to determine the various connectivities between two different cities. There might be N combinations for the above query. i.e A-->B-->C-->D A-->E-->F-->D A-->E->D How will I solve this problem in MS-SQL, do we have the facility for recursion with tables. And one more doubt : What is exactly a leg? |
Hello everyone I am having this problem with how to fill my values in my sql statement, if you look below you will notice i have set up the values to be the length of the arr (arrayList). could someone please let me now how i should put there values in. thanks for yr time ben try { String data = ... |
Hi, It does matters...in a sequence of conditions in a sql each next call has to wait for the previous one so the performance of the query goes down and it becomes worse if u are using a simple statement for the query...if u want to know more just tell me what exactly u want to know... Regards... Neeraj |