CUBRID Q&A http://www.cubrid.org/?mid=questions CUBRID Q&A en Fri, 21 Oct 2011 02:37:10 -0800 Mon, 20 May 2013 01:15:17 -0800 XpressEngine 1.4.4.1 Error: The argument is invalid Laura Oh http://www.cubrid.org/questions/490836 http://www.cubrid.org/questions/490836 When I execute a query "SELECT * FROM t_info" on Java application thru CUBRID JDBC,
an error "The argument is invalid" popped up. I'd like to know what happened and how I handle.

 

 

]]> Thu, 15 Nov 2012 19:21:04 -0800 SQL Error Code JDBC Java 1 JDBC: Cannot coerce host var to type nchar vbergmann http://www.cubrid.org/questions/329488 http://www.cubrid.org/questions/329488
When using JDBC to persist a row in which each column is set to a string value containing only uppercase latin letters (e.g. char_col=KFX, varchar_col=J, nchar_col=XZDFOY, nchar_varying_col=YYCY), I get the following exception:

Caused by: cubrid.jdbc.driver.CUBRIDException: Semantic: Cannot coerce host var to type nchar.
    at cubrid.jdbc.driver.CUBRIDConnection.createCUBRIDException(CUBRIDConnection.java:829)
    at cubrid.jdbc.driver.CUBRIDStatement.checkExecuteError(CUBRIDStatement.java:941)
    at cubrid.jdbc.driver.CUBRIDStatement.executeCoreInternal(CUBRIDStatement.java:830)
    at cubrid.jdbc.driver.CUBRIDStatement.executeCore(CUBRIDStatement.java:791)
    at cubrid.jdbc.driver.CUBRIDPreparedStatement.executeUpdate(CUBRIDPreparedStatement.java:140)
    at org.databene.platform.db.DBSystem.persistOrUpdate(DBSystem.java:867)
    ... 44 more 

The code that provoked the error was something like this:

            PreparedStatement statement = ...;
            statement.setObject(1, "KFX");
            statement.setObject(2, "J");
            statement.setObject(3, "XZDFOY");
            statement.setObject(4, "YYCY");
            int rowCount = statement.executeUpdate();

The table definition is

    create table chartest (
        char_col          char(4) not null,
        varchar_col       varchar(8) not null,
        nchar_col         nchar(6) not null,
        nchar_varying_col nchar varying(10) not null
    );

What's wrong?

Regards, Volker]]> Wed, 18 Apr 2012 07:01:55 -0800 JDBC SQL N VAR Error Code 2 How can you get the query string from a CUBRIDPreparedStatement? ovidiuv http://www.cubrid.org/questions/412851 http://www.cubrid.org/questions/412851 According to other websites, you can obtain the query string for a PreparedStatement using its toString method:
http://stackoverflow.com/questions/2683214/get-query-from-java-sql-preparedstatement

For CUBRID however, it only displays:
cubrid.jdbc.driver.CUBRIDPreparedStatement@500b73e5

Is there a way to view the query that it contains (after variables have been binded for example) ?
]]> Tue, 21 Aug 2012 04:38:57 -0800 JDBC 1 Java Stored Procedure: Invalid call: it can not return ResultSet castle79 http://www.cubrid.org/questions/357535 http://www.cubrid.org/questions/357535 I am running the following example in my cubrid database.

function:

create function rset() return cursor
as language java
name 'JavaSP2.TResultSet() return java.sql.ResultSet'

Stored procedure:

public static class JavaSP2 {
public static ResultSet TResultSet(){

try{
Class.forName("cubrid.jdbc.driver.CUBRIDDriver");
Connection conn = DriverManager.getConnection("jdbc:default:connection:");
((CUBRIDConnection)con).setCharset("euc_kr");

String sql = "select * from station";
Statement stmt=con.createStatement();
ResultSet rs = stmt.executeQuery(sql);
((CUBRIDResultSet)rs).setReturnable();

return rs;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
} 

CUBRID says:   

execute error:-911
line 1 is not executed (error)

Error description:
Invalid call: it can not return ResultSet. 

I try to solve it doing casting but dont work. When I registering the function cubrid dont allow set  java.sql.ResultSet as return value instead use

CREATE FUNCTION "rset"() RETURN CURSOR
AS LANGUAGE JAVA
NAME 'JavaSP2.TResultSet() return cubrid.jdbc.driver.CUBRIDResultSet'

]]> Fri, 11 May 2012 04:59:17 -0800 JDBC SQL Stored Procedure 1 How to make JDBC driver fail faster if server is down? vbergmann http://www.cubrid.org/questions/329746 http://www.cubrid.org/questions/329746 When trying to connect a server which is down, CUBRID hangs for a long time (at least several minutes) before finally reporting that the host cannot be reached. This is quite annoying when testing. Is there a way to make it respond faster? Setting a timeout? For example a connect property?

The code I used:

            Class<Driver> driverClass = BeanUtil.forName(driverClassName);
            Driver driver = driverClass.newInstance();
            java.util.Properties info = new java.util.Properties();
            info.put("user", "xyz");
            info.put("password", "xyz");
            Connection connection = driver.connect(url, info);

Regards,

Volker

]]> Wed, 18 Apr 2012 20:31:32 -0800 JDBC connection string timeout connection 1 Tools that generate CUBRID code for Java impega http://www.cubrid.org/questions/234895 http://www.cubrid.org/questions/234895 Hi! Are there any tools that could be used to automatically generate Java/JDBC code working with CUBRID?

For exampe, something like:

http://platform.netbeans.org/tutorials/nbm-crud.html

Or any tool which I can use to generate the right CUBRID java code without having to learn all the jdbc driver "internals", so to say...

]]> Fri, 04 Nov 2011 02:23:54 -0800 Tools Java JDBC CRUD 1 Multiple CUBRID Instances dolph http://www.cubrid.org/questions/235384 http://www.cubrid.org/questions/235384 I can see in jdbc help manual that you can login to alternative servers.

Can multiple instances of CUBRID run on the same machine? Also, can you please describe the setup?

]]> Sat, 05 Nov 2011 11:13:29 -0800 JDBC HA alternative host 1 CUBRID JDBC url eusto http://www.cubrid.org/questions/236982 http://www.cubrid.org/questions/236982 What is the CUBRID JDBC URL connection string?

]]> Thu, 10 Nov 2011 04:59:44 -0800 JDBC driver 1