Java is an object-oriented language and runtime environment. Java programs can run unchanged on most platforms in a Virtual Machine called the JVM.
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24 views
Best way to synchronize several databases in different computers
I must to do a POS program for college in Java, the problem is that I don't know how to link the different computers to a master computer that handles the changes of the database and sends them to the ...
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43 views
h2 Java server synchronization and caching
I'm happily coding a client-server application in Java using H2 as database.
The server runs the database as an embedded local database while clients connect to it via TCP.
Now more and more I see ...
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139 views
jTDS + stored procedures + prepareSQL = nesting level error?
Situation
A (Tomcat) Java web application using jTDS to connect to a MSSQL 2008 database. This Java application for 99% executes MSSQL stored procedures using user input.
Problem
The jTDS driver ...
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160 views
Cannot remove .bak file
I have a java application that:
Reads a .bak file from a windows fileshare and restores it in SQL Server on a remote windows server
Does various modifications on the database restored from the .bak ...
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0answers
63 views
Command line switch to disable Coherence?
We have a Java app that happens to have the coherence jar in the path.
My application doesn't need it, so I'd like to pass some type of -D variable to the JVM to tell it to ignore coherence, or ...
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112 views
Populate database column with drop-down menu item
I'm quite new to Apex and Oracle in general, but I would like to know how to populate a database column with the data from
the drop-down list
Currently I'm not getting further than simply creating ...
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0answers
143 views
mysql server is not sending result set back after query execution to client and staying in sending data state
When I pass a query from my Java application to mysql server, it stays in Sending Data state and not returning result set back to application.
When I execute the same query in SQLYog directly, it ...
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61 views
Altering an Apache Derby table's derby.storage.pageSize property after creation
Is it possible to change the derby.storage.pageSize property of an existing table? Or do I have to export my data, drop then re-create the table with the new property, and then re-import my data?
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31 views
If local data center nodes are down then it will get the data from other data center replica nodes?
I have recently started using Cassandra in our Production environment. We have a 24 node cross colo cluster with replication factor of 4. We have 12 nodes in PHX colo and 12 nodes in SLC colo. And ...
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30 views
How memory usage with mysql Statement.setFetchSize()
Suppose I am a selecting 100k rows from a mysql table using following java code
Statement stmt=con.createStatement();
stmt.setFetchSize(FETCH_SIZE);
ResultSet ...
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40 views
MongoDB master - slave not syncing anymore
I have a setup with two MongoDB instances, one master and one slave. The sync worked perfectly fine for quite a while now, but suddenly stopped. The major problem is, that the guy who setup the ...
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55 views
Upgrading from Oracle 10 to 11g, what to look for in SQL embedded in code?
We're planning to upgrade our enterprise database to 11g.
We have a number of web applications using it via Weblogic and Hibernate 3.6.5, and both of those support 11g.
There are a number of direct ...
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181 views
Upgrading Java JDK for an Oracle 10g instance
Because of its security flaws, I need to remediate Java JDK 1.4.2. Based on this Oracle Blog, and encouraged by Do Oracle databases use Java internally and this Certification Matrix (opens an Excel ...
