We got this requirement while trying to run our framework from two different Jenkins jobs
Following is our code:
String xlsPath= System.getProperty("user.dir")+"\\TestInputs\\Config.xls";
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection conn = DriverManager.getConnection("jdbc:odbc:Driver={Microsoft Excel Driver (*.xls)};DBQ=" +xlsPath+ ";DriverID=22;READONLY=TRUE","","");
String sql="Select * from [Setup$]";
Statement st = conn.createStatement();
ResultSet rs = st.executeQuery(sql);
while(rs.next())
{
System.out.println(rs.getString(1).toString());
System.out.println(rs.getString(2).toString());
System.out.println(rs.getString(3).toString());
Thread.sleep(1000);
}
rs.close();
st.close();
conn.close();
The above code working absolutely fine when we are trying to execute through multi threading concept.
But I am getting following error message if I create TWO JENKINS JOBS and running them parallely.
Exception in thread "main" java.sql.SQLException: [Microsoft][ODBC Excel Driver] The Microsoft Jet database engine cannot open the file '(unknown)'. It is already opened exclusively by another user, or you need permission to view its data.
Do we have any workaround for this? so that I can execute two jobs without any issues.
NOTE: I cannot use HSSF or someother means to read my excel file. I should strictly use Database commands like I used it in the above code.
Please help !
Related
I am having this problem,
When I send an SQL query as an argument it gives error
when I use the same query directly in my java program it works fine.
MY SQL query when I send as an argument is as follow
Select RATINGPERIOD from INVESTMENT.I1INVE Where INVESTMENTID = 100
rs = stmt.executeQuery(sqlQery); // Select RATINGPERIOD from INVESTMENT.I1INVE Where INVESTMENTID = 100
and when I use it directly into my java program is as follow
try
{
// Load the driver
Class.forName("com.ibm.db2.jcc.DB2Driver");
System.out.println("**** Loaded the JDBC driver");
// Create the connection using the IBM Data Server Driver for JDBC and SQLJ
con = DriverManager.getConnection (url, user, password);
// Create the Statement
stmt = con.createStatement();
System.out.println("**** Created JDBC Statement object");
// Execute a query and generate a ResultSet instance
rs = stmt.executeQuery("Select RATINGPERIOD from INVESTMENT.I1INVE where INVESTMENTID = 100");
while (rs.next()) {
delay = rs.getString("RATINGPERIOD");
System.out.println("size of list ="+delay);
}
}
Error log
com.ibm.db2.jcc.am.SqlException: [jcc][10103][10941][3.62.57] Method executeQuery cannot be used for update. ERRORCODE=-4476, SQLSTATE=null
at com.ibm.db2.jcc.am.fd.a(fd.java:660)
at com.ibm.db2.jcc.am.fd.a(fd.java:60)
at com.ibm.db2.jcc.am.fd.a(fd.java:120)
at com.ibm.db2.jcc.am.jn.a(jn.java:4129)
at com.ibm.db2.jcc.am.jn.a(jn.java:2875)
at com.ibm.db2.jcc.am.jn.a(jn.java:679)
at com.ibm.db2.jcc.am.jn.executeQuery(jn.java:663)
at com.profitsoftware.testing.utils.keywords.date.DatabaseSQL.sqlQuery(DatabaseSQL.java:46)
at com.profitsoftware.testing.utils.keywords.date.DatabaseSQLKeywords.executeSqlQuery(DatabaseSQLKeywords.java:18)com.
ok some more information, I have assigned sql query to a string in Java program and then compared it to the query(String) I was getting as argument in my java program and it gives false. which explain maybe when query is passed from RIDE to Java programm it changes somehow. any idea what happens there ?
Thanks in advance and sorry if it sounds a stupid question, I a new to this programming world.
oK, It started to work, actually I was missing something there, so type. My logic itself was good but it was typo that created the problem
--Sara
I'm writing an application that has a data access layer to abstract the underlying connections to SQLITE3 or MySQL databases.
Thanks to some help here yesterday I was shown how to use a process builder to run a command line import into the SQLITE3 DB using output redirection.
Now I am trying to create the same database but in MySQL by importing a dump file. The load works fine from the command line client. I just tell it to source the file and the DB is created successfully.
However I am trying to do this through code at runtime and my method for executing a SQL statement fails to execute the source command.
I suspect that this is because "source" is not SQL but I don't know what else to use to try and run it.
My error message is:
java.sql.SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'source /tmp/ISMCoreActionPack_mysql.sql' at line 1
The failing command string:
source /tmp/ISMCoreActionPack_mysql.sql;
My method is:
public Boolean executeSqlStatement(String sql) {
Boolean rc = false;
try {
Connection connection = getConnection();
Statement statement = connection.createStatement();
rc = statement.execute(sql);
connection.close();
} catch (SQLException e) {
e.printStackTrace();
System.err.println(e.getClass().getName() + ": " + e.getMessage());
System.exit(1);
}
return rc;
}
Can anyone suggest how to do this?
You cannot run 'source' command, because it's not supported by JDBC driver, only MySQL.
My advice to you the following. Write some parser, which reads queries from a file, and executes them using JDBC statements.
source is not part of MySQL's dialect of SQL; it is a MySQL shell command. Still, you shouldn't need to write your own parser. You could use something like SqlTool as explained in this answer.
I am working on an JAVA app that evaluates the data and log sizes of all databases on an instance and mails a monthly report. I am currently working with SQLServer2014. I am using an SQL query that calculates the size of all databases by querying sys.master_files.
The problem is that when using JDBC to make the query, it returns the error:
java.sql.SQLException: No suitable driver found for jdbc:microsoft:sqlserver://localhost"
I have tried connecting to particular databases and that works fine. Is there any way to do this query directly to sys.master_files using JDBC? Or is there a smarter way altogether to accomplish the same result?
Thanks
Your "No suitable driver found" error is simply due to a malformed connection URL. jdbc:microsoft:sqlserver is not valid.
As for connecting to an instance without specifying a particular database, this works fine for me:
// NB: no databaseName specified in the following
String connectionUrl = "jdbc:sqlserver://localhost;instanceName=SQLEXPRESS;integratedSecurity=true";
try (Connection conn = DriverManager.getConnection(connectionUrl)) {
String sql = "SELECT name FROM sys.master_files WHERE type_desc='ROWS' ORDER BY database_id";
try (
Statement st = conn.createStatement();
ResultSet rs = st.executeQuery(sql)) {
while (rs.next()) {
System.out.println(rs.getString(1));
}
}
} catch (Exception e) {
e.printStackTrace(System.err);
}
Note that sys.master_files is a system view that is available in all databases, so AFAIK it doesn't matter what the current database (catalog) is when you call it.
I wrote a Java stored procedure, packed it into a jar and installed it into the Teradata database. I want to use the default database connection as described here. Most of the code was generated by the Teradata wizard for stored procedures.
public class TestSql {
public static void getEntryById(int id, String[] resultStrings) throws SQLException {
Connection con = DriverManager.getConnection("jdbc:default:connection");
String sql = "SELECT x FROM TEST_TABLE WHERE ID = " + id + ";";
Statement stmt = (Statement) con.createStatement();
ResultSet rs1 = ((java.sql.Statement) stmt).executeQuery(sql);
rs1.next();
String resultString = rs1.getString(1);
stmt.close();
con.close();
resultStrings[0] = resultString;
}
}
I installed the jar:
CALL SQLJ.REPLACE_JAR('CJ!/my/path/Teradata-SqlTest.jar','test');
And created the procedure:
REPLACE PROCEDURE "db"."getEntryById" (
IN "id" INTEGER,
OUT "resultString" VARCHAR(1024))
LANGUAGE JAVA
MODIFIES SQL DATA
PARAMETER STYLE JAVA
EXTERNAL NAME 'test:my.package.TestSql.getEntryById(int,java.lang.String[])';
Now when I call this procedure, I get this error message:
Executed as Single statement. Failed [7827 : 39001] Java SQL Exception SQLSTATE 39001: Invalid SQL state (08001: No suitable driver found for jdbc:default:connection).
Now when I log off from Teradata and log on again and call the procedure, the error message becomes:
Executed as Single statement. Failed [7827 : 39001] A default connection for a Java Stored Procedure has not been established for this thread.).
What is the problem here? I'm connecting to Teradata using the Eclipse plugin. Teradata v. 15.0.1.01.
After many hours I finally found the problem. Eclipse packed all dependencies into the jar - which basically is ok. However it also packed the Teradata JDBC driver files (tdgssconfig.jar and terajdbc4.jar) into the result jar, which was the problem.
I adjusted the jar building process so that these files are not included and the errors went away.
I am looking for a way to save an SQL database and then reference it by means other than localhost which would not work because it is being used on other computers.
I realize that my terminology may not be correct in asking for a means to "package" an SQL database however I am not very sure how to put my desire such a concise title.
I have a database that I created through mySQL here: http://gyazo.com/fcac155a60c0d2587442c3e4807ef98a
I can access this database with no problems through the following code...
try
{
//Get connection
Connection myConn = DriverManager.getConnection("jdbc:mysql://localhost:3306/term_database","root", "_cA\"#8X(XHm+++E");
//**********
//Connection myConn = DriverManager.getConnection("jdbc:mysql:translationDatabase","root", "_cA\"#8X(XHm+++E");
//**********
//create statement
Statement myStmt = myConn.createStatement();
//execute sql query
ResultSet myRs = myStmt.executeQuery("select * from terms WHERE idNumber=" +termNumber);
//process result set
while(myRs.next()){
term= (myRs.getString(language));
}
}
catch (Exception exc)
{
exc.printStackTrace();
}
However, I assume that my users will be on different computers and so a "//localhost" reference will not work. They do not have access to the internet either. So I aim to include the database in my program's files to be downloaded with the software or to include it in the jar. I was not able to find any means to do that online. The code I surrounded with *'s was an attempt to reference translationDatabase.sql which I saved through the program mySQL into my software's directory but it did not work as shown here: http://gyazo.com/e9d4339435dedecab4e7ad960e9b13b6
To recap: I am looking for a way to save an SQL database and then reference it by means other than localhost which would not work because it is being used on other computers.
The idiomatic terminology is "embedded" or "serverless" database.
There are several pure-java solutions. There is also the popular SQLite, which you can manipulate via its command line client, or via a third-party JDBC driver (example 1, example 2)
Any of the above solutions will require that you convert your existing MySQL database to the target system..
Alternatively, you may consider bundling your application with MySQL server (possibly with an automated installation process, so that installation is invisible to the end-user).