Print SQL Statement

Post Author: Fedor
CA Forum: Data Connectivity and SQL
Somebody knows, how can I print the currently SQL statement?

Post Author: V361
CA Forum: Data Connectivity and SQL
Go to database, Show SQL Query, highlight the query, RIght Click and select copy, then you can paste that into word, or excel, or text file. An example is pasted below.
SELECT `Customer`.`Region`, `Customer`.`City`, `Customer`.`Address2`, `Customer`.`Address1`, `Customer`.`Customer Name`, `Customer`.`Postal Code`, `Customer`.`Country` FROM `Customer` `Customer`

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Pretty printing SQL statements in Java

Hello,
Environment: Oracle 10g (no prepared statements) and WebLogic 10 using WL's connection pooling.
We have dynamically generated SQL in our Java code and currently print the SQL to our (log4j) logger as one long Java String. Does Oracle offer a method call to better format the SQL prior to calling the logger to log the SQL?
Thanks,
Jim

Hi Jim,
Just an idea. Oracle SQLDeveloper has a formatting utillity. Since the IDE is written in Java, there just might be a jar/class that can be used elsewhere.
As said, just an idea. Maybe you can download it and try to investigate yourself.
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Peter

Print out sql statement

Is there any way to print out a sql statement to a window when using on session?
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SQL SELECT * FROM table_name
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Try trace flags
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Hi all,
Is it possible to extract the SQL statement from an existing Webi document's data provider using BO SDK? I've searched through the class library but haven't found any information on this yet. If you have done it, could you provide some guidance. Many thanks.

I found the following Java code that might be of some help to you. I realize you are using .NET but this might push you down the right path.
The trick here is to use the Report Engine SDK to get the DataProvider of the DocumentInstance. Then, look at the SQLDataProvider to get your SQLContainer.
My apologies for the poor formatting. This didn't copy and paste over to the forums very well. I've cleaned up as much as I could.
<%@ page import="com.crystaldecisions.sdk.framework.*" %>
<%@ page import="com.crystaldecisions.sdk.exception.SDKException" %>
<%@ page import="com.crystaldecisions.sdk.occa.infostore.*" %>
<%@ page import="com.businessobjects.rebean.wi.*" %>
<%
boolean loginSuccessful = false;
IEnterpriseSession oEnterpriseSession = null;
String username = "username";
String password = "password";
String cmsname = "cms_name";
String authenticationType = "secEnterprise";
try
//Log in. oEnterpriseSession = CrystalEnterprise.getSessionMgr().logon( username, password, cmsname, authenticationType);
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String docname = "WebI document name";
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IInfoObjects oInfoObjects = (IInfoObjects) oInfoStore.query(query);
if (oInfoObjects.size() > 0)
//Retrieve the latest instance of the report oInfoObject = (IInfoObject) oInfoObjects.get(0);
// Initialize the Report Engine ReportEngines oReportEngines = (ReportEngines)
oEnterpriseSession.getService("ReportEngines");
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// Openning the document DocumentInstance oDocumentInstance = oReportEngine.openDocument(oInfoObject.getID());
DataProvider oDataProvider = null;
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SQLContainer oSQLContainer_root = null;
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Odd results from SQL statement in JSP

Hi.
Getting very strange results from my SQL statement housed in my JSP.
the last part of it is like so:
"SELECT DISTINCT AID, ACTIVE, REQUESTOR_NAME, ..." +
"REQUESTOR_EMAIL" +
" FROM CHANGE_CONTROL_ADMIN a INNER JOIN CHANGE_CONTROL_USER b " +
"ON a.CHANGE_CTRL_ID = b.CHANGE_CTRL_ID " +
" WHERE UPPER(REQUESTOR_NAME) LIKE ? ";   I've set the following variables and statements:
String reqName = request.getParameter("requestor_name");
PreparedStatement prepstmt = connection.prepareStatement(preparedQuery);
prepstmt.setString(1, "%" + reqName.trim().toUpperCase() + "%");
ResultSet rslts = prepstmt.executeQuery();
rslts.next();
int aidn = rslts.getInt(1);
int actbox = rslts.getInt(2);     String reqname = rslts.getString(3).toUpperCase();
String reqemails = rslts.getString(4);
String bizct = rslts.getString(5);
String dept = rslts.getString(6);
String loc = rslts.getString(7);
Date datereq = rslts.getDate(8);
String busvp = rslts.getString(9);
AND SO ONSo then I loop it, or try to with the following:
<%
try {
while ((rslts).next()) { %>
<tr class="style17">
    <td><%=reqname%></td><td><%=reqemails %></td><td><%=bizct %></td>td><%=dept %></td>
   <td><%=aidn %></td>
</tr>
<%
rslts.close();
selstmt.close();
catch(Exception ex){
     ex.printStackTrace();
     log("Exception", ex);
%>AND so on, setting 13 getXXX methods of the 16 cols in the SQL statement.
Trouble is I'm getting wildly inconsistent results.
For example, typing 'H' (w/o quotes) will spit out 20 duplicate records of a guy named Herman, with the rest of his corresponding info correct, just repeated for some reason.
Typing in 'He' will bring back the record twice (2 rows of the complete result set being queried).
However, typing in 'Her' returns nothing. I could type in 'ell' (last 3 letters of his name, Winchell) and it will again return two duplicate records, but typing in 'hell' would return nothing.
Am I omitting something crucial from the while statement that's needed to accurately print out the results set without duplicating it and that will ensure returning it?
There's also records in the DB that I know are there but aren't being returned. Different names (i.e. Jennifer, Jesse, Jeremy) won't be returned by typing in partial name strings like Je.
Any insight would be largely appreciated.
One sidenote: I can go to SQL Plus and accurately return a results set through the above query. Having said that, is it possible the JDBC driver has some kind of issue?
Message was edited by:
bpropes20
Message was edited by:
bpropes20

Am I omitting something crucial from the while
statement that's needed to accurately print out the
results set without duplicating it and that will
ensure returning it?Yes.
In this code, nothing ever changes the value of reqname or any of the other variables.
while ((rslts).next()) { %>
<tr class="style17">
    <td><%=reqname%></td><td><%=reqemails %></td><td><%=bizct %></td>td><%=dept %></td>
   <td><%=aidn %></td>
</tr>
<%
} You code needs to be like this:while (rslts.next()) {
reqname = rslts.getString(3).toUpperCase();
reqemails = rslts.getString(4);
bizct = rslts.getString(5);
dept = rslts.getString(6);
loc = rslts.getString(7);
datereq = rslts.getDate(8);
busvp = rslts.getString(9);
%>
<tr class="style17">
    <td><%=reqname%></td><td><%=reqemails %></td><td><%=bizct %></td>td><%=dept %></td>
   <td><%=aidn %></td>
</tr>
<%
There's also records in the DB that I know are there
but aren't being returned. Different names (i.e.
Jennifer, Jesse, Jeremy) won't be returned by typing
in partial name strings like Je.Well, you're half-right, your loop won't display all the rows in the result set, because you call rslts.next(); once immediately after executing the query. That advance the result set to the first row; when the loop is entered, it starts displaying at the 2nd row (or later if there are more next() calls in the code you omitted).

Passing parameter into SQL statement in Crystal Reports

Hi all,
I would like to call Crystal Reports in JSP. I can handle it well now. But I hope to let user input their selection criteria before printing out the report. I know how to get the parameter value in JSP, but I really dunno how to pass these parameter values into the SQL statement in Crystal Report. Actually, is it possible to do so?
If anyone has idea, please tell me. Thx Thx!
Regards,
Betty

Dear Sir,
I want to use Crystal Report as a web base using JSP. But, I am getting how to call .rpt file in .jsp file & passing of parameter.
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My userid = [email protected]
Regds
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SQL statement in servlet giving error

Please let me know if I need to post this on a different forum, but I thought it was applicable to here.
First, let me preface this post by saying I've inserted hardcoded values at the DB (Oracle) level and it worked just fine, so most of the statement is sound. All the values inserted properly when testing it that way. Also, I've printed the SQL statement to the console and all looks ok there, too.
Out of this, I'm getting an error citing the following:
java.lang.ArrayIndexOutOfBoundsException
also occasionally getting the following error:
java.sql.SQLException: [Microsoft][ODBC Driver Manager] Invalid cursor state
In my servlet, I'm attempting the following:
prior to the insert statement, I'm retrieving the last row number to start the increment from as in:
Statement stmt = connection.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY);
ResultSet rst = stmt.executeQuery("select CHANGE_CTRL_ID from CHANGE_CONTROL_USER order by CHANGE_CTRL_ID");
     rst.last();
     int lastRowNum = Integer.valueOf(rst.getString("CHANGE_CTRL_ID")).intValue();
     rst.close();
     stmt.close();
------------ then ------------------------------------------------
String preparedQuery = "INSERT ALL " +
"INTO CHANGE_CONTROL_USER " +
"(CHANGE_CTRL_ID,REQUESTOR_NAME,REQUESTOR_EMAIL,BUS_CONTACT,DEPT,LOCATION,PHONE_NUM,DATE_REQ," +
"BUSVP,VP_PHONE,VP_DATE,BRANCH,PRIORITY,OPS_MAN_CHG,OPS_MAN_PPCHAP,TRAIN_REQ," +
"EXIST_SYS_FLD_CHG,BUS_RULES_CHG,NEW_CODING,NEW_BUS_RULE,NEW_SYS_FIELD,REQ_TYPE_OTHER,REQ_OTHER_SPECIFY,IMPACT_RE_COLL," +
"IMPACT_DEF_LM,IMPACT_DEF_REC_NRE,IMPACT_AUDIT,IMPACT_PERS_COLL,IMPACT_DEF_FCL,IMPACT_BUS_TECH,IMPACT_LEGAL,IMPACT_PRIV_COLL," +
"IMPACT_DEF_BKRUP_RE,IMPACT_DEC_SUPT,IMPACT_RISK_MGT,IMPACT_DEF_REO,IMPACT_DEF_BKRUP_NRE,IMPACT_QUALSVCS,IMPACT_INTERNAL_CTRL,IMPACT_DEF_WKFL," +
"IMPACT_DEF_WKOUT,IMPACT_TRAIN_TPI,IMPACT_OTHER,IMPACT_DEF_MGT,IMPACT_DEF_TAX,IMPACT_VEND_MGT,IMPACT_DEF_CTRL,IMPACT_DEF_REC_RE," +
"IMPACT_BUS_ADMIN,IMPACT_OTHER_SPECIFY,CHANGE_IN_KPMG,CHANGE_IN_OTS,CHANGE_IN_NFR,CHANGE_IN_ARR,CHANGE_IN_BRR, CHANGE_IN_PROC_IMP," +
"CHANGE_IN_INT_CITI_POL,CHANGE_IN_OTHER,CHANGE_IN_OTHER_SPECIFY, CHANGE_INIT_DETAILS,REQ_INFO_DESCRIPT,REQ_INFO_EXPLAIN_CURRBUS,REQ_INFO_EXPLAIN_PROPOSED,REQ_BEN_PROP_BENEFIT,REQ_BEN_FIN_IMPLEMENT," +
"REQ_BEN_OPS_IMPLEMENT,YES_FORM,VULN_ASSESS, CBA_CHG, RISK_ACCEPT,MARSITEM, GCCRFP, APP_COMPL_QUES,CAP_EXPEND)" +
" VALUES (changecontrol_user_seq.nextval,?,?,?,?,?,?,to_date(?,'YYYY-MON-DD HH:MI:SS'),?,?,to_date(?,'YYYY-MON-DD HH:MI:SS'),?,?," + "?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,"
+ "?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)"
+ "INTO CHANGE_CONTROL_ADMIN "
+ "(AID,CHANGE_CTRL_ID,ADMNAME,CLOSEDATE,ACTIVE)"
+ "VALUES (changecontrol_admin_seq.nextval, changecontrol_user_seq.currval,NULL, NULL, -1)"
+ "SELECT object_name AS REQUESTOR_NAME FROM all_objects where rownum <= 1;";
also I've declared all the respective strings for the PreparedQuery statement.
If you need to see those, here they are:
PreparedStatement pstmt = connection.prepareStatement(preparedQuery);
               // stmt = connection.stmt("INSERT INTO RMIS_USER VALUES (?,?,?,?,to_date(?,'YYYY-MON-DD HH:MI:SS'),?,?,?,?,to_date(?,'YYYY-MM-DD HH:MI:SS')");
          pstmt.setInt(1,++lastRowNum);
          pstmt.setString(2,reqName);
          pstmt.setString(3,reqemail);
          pstmt.setString(4,buscont);
          pstmt.setString(5,reqDept);
          pstmt.setString(6,reqLocale);
          pstmt.setString(7,phone_num);
          pstmt.setDate(8,dtreq);
          //pstmt.setCalendar(8,rtnow);
          pstmt.setString(9,busvp_email);
          pstmt.setString(10,vpphone);
          pstmt.setDate(11,dt);
          pstmt.setString(12,branch);
          pstmt.setString(13,priority);
          pstmt.setString(14,opsmanchg);
          pstmt.setString(15,opsmanppchap);
          pstmt.setString(16,train_req);
          pstmt.setString(17,reqexist_sys_fld_chg);
          pstmt.setString(18,reqbus_rules_chg);
          pstmt.setString(19,reqnew_coding);
          pstmt.setString(20,reqnewbus_rule );
          pstmt.setString(21,reqnew_sys_fld);
          pstmt.setString(22,reqother);
          pstmt.setString(23,req_other_specify);
          pstmt.setString(24,imp_recoll);
          pstmt.setString(25,imp_deflm);
          pstmt.setString(26,imp_defrecnre);
          pstmt.setString(27,imp_audit);
          pstmt.setString(28,imppers_coll);
          pstmt.setString(29,imp_deffcl);
          pstmt.setString(30,imp_bustech);
          pstmt.setString(31,imp_legal);
          pstmt.setString(32,imp_privcoll);
          pstmt.setString(33,imp_defbkre);
          pstmt.setString(34,imp_decsupt);
          pstmt.setString(35,imp_riskmgt);
          pstmt.setString(36,imp_defreo);
          pstmt.setString(37,imp_defbknre);
          pstmt.setString(38,imp_qualsvc);
          pstmt.setString(39,imp_intlctrl);
          pstmt.setString(40,imp_defwkfl);
          pstmt.setString(41,imp_defwkout);
          pstmt.setString(42,imp_trtpi);
          pstmt.setString(43,impact_other);
          pstmt.setString(44,imp_defmgt);
          pstmt.setString(45,imp_deftax);
          pstmt.setString(46,imp_vendmgt);
          pstmt.setString(47,imp_defctrl);
          pstmt.setString(48,imp_defrecre);
          pstmt.setString(49,imp_busadm);
          pstmt.setString(50,impact_other_specify);
          pstmt.setString(51,change_in_kpmg);
          pstmt.setString(52,change_in_ots);
          pstmt.setString(53,change_in_nfr);
          pstmt.setString(54,change_in_arr);
          pstmt.setString(55,change_in_brr);
          pstmt.setString(56,change_in_proc_imp);
          pstmt.setString(57,change_inter_citpol);
          pstmt.setString(58,change_in_other);
          pstmt.setString(59,change_in_other_specify);
          pstmt.setString(60,change_init_details);
          pstmt.setString(61,req_info_descript);
          pstmt.setString(62,req_info_explain_currbus);
          pstmt.setString63,req_info_explain_proposed);
          pstmt.setString(64,req_ben_prop_benefit);
          pstmt.setString(65,req_ben_fin_implement);
          pstmt.setString(66,req_ben_ops_implement);
          pstmt.setString(67,projyes);
          pstmt.setString(68,vulnass);
          pstmt.setString(69,cbachg);
          pstmt.setString(70,riskacc);
          pstmt.setString(71,marsitem);
          pstmt.setString(72,gccrfp);
          pstmt.setString(73,applcomp);
          pstmt.setString(74,capexpend);
          pstmt.executeUpdate();
if anyone sees anything flawed here, please let me know!
Thanks!
Message was edited by:
bpropes20
Message was edited by:
bpropes20
Message was edited by:
bpropes20

What a mess. First off, the line pstmt.setInt(1,++lastRowNum); just needs to go away. You're already using a sequence to set the value for the primary keys, you don't need to add a mistake like this.
I then count 73 question marks (you can verify, I'm not counting again.) That would mean that your indices are off by one, and the ArrayIndexOutOfBounds is probably coming from pstmt.setString(74,capexpend); Dump the ++lastRowNum line, change all of your indices (after verifying the bind count!) and try it again.
You can see an inherent weakness in the PreparedStatement clauses - one change means manually rewriting all of the indices. A solution is dumping all of your bind values into a List, then loop through the list to do your setXXX statements. If all binds are not of the same type, you can bind the values to some object that identifies type and use those objects in the list instead of the values. A little more complex, but easier to maintain in my opinion.

ORA-04044 Error in SQL statement

Hi All,
I faced ORA-04044 in a SQL statement being written inside a shell script. I really don't know what is wrong with the script. Without shell variables is working ...
Here is the excerpt:
line=`sar -u 2 5 |tail -1`
var_io=`echo "$line" | awk '{print $6}'`
var_sys=`echo "$line" | awk '{print $5}'`
var_user=`echo "$line" | awk '{print $3}'`
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sqlplus $ora_access <<EOF
select sysdate, a.hostid, a.inst_num, b.count1, c.count2, $var_user,$var_sys,$var_idle,$var_io
from dual ,
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(select count(sid) count1 from v$session where username is not null) b,
(select count(*) count2 from apps.fnd_concurrent_requests where phase_code ='R') c;
EOF
[b]Error Message:
SQL*Plus: Release 10.2.0.2.0 - Production on Thu Apr 10 02:20:53 2008
Copyright (c) 1982, 2005, Oracle. All Rights Reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.2.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL> 2 3 4 5 (select count(sid) count1 from v where username is not null) b,
ERROR at line 4:
ORA-04044: procedure, function, package, or type is not allowed here

Thanks a lot for instant reply. It worked!!
I forgot to use the escape character, but the error
message was not revealing anything :-(If you look carefully you could have spotted it:
SQL> 2 3 4 5 (select count(sid) count1 from[b] v where username is not null) b,

How Can I Retrieve SQL Statement From The User ?

Hi
I want to know, how can I make the user can enter the SQL statement from himself ?? in this code he can't enter it. Only he can display the SQL that i wrote it...
this is my Code:
import java.sql.*;
public class db_testing {
     static final String DRIVER = "com.mysql.jdbc.Driver";
     static final String DATABASE_URL = "jdbc:mysql://localhost/S204111933";
     public static void main(String[] args) {
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          Statement st= null;
          ResultSet rset=null;
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               st=cn.createStatement();
               rset=st.executeQuery("select * from employee");
               ResultSetMetaData metadata=rset.getMetaData();
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               for(int i=1;i<=metadata.getColumnCount();i++)
               System.out.print(metadata.getColumnName(i)+"\t");
               System.out.println();
               System.out.println();
               while(rset.next()){
               for(int i=1;i<=metadata.getColumnCount();i++)
               System.out.print(rset.getObject(i)+"\t\t");
               System.out.println();}
          catch(Exception e){
               e.printStackTrace();
          finally{
               try{
               cn.close();
               st.close();
               rset.close();
               catch(Exception e1){
                    e1.printStackTrace();
}

The following changes in the code will make the user to give the input
import java.sql.*;
public class db_testing {
static final String DRIVER = "com.mysql.jdbc.Driver";
static final String DATABASE_URL = "jdbc:mysql://localhost/S204111933";
public static void main(String[] args) {
Connection cn=null;
Statement st= null;
ResultSet rset=null;
try{
Class.forName(DRIVER);
cn=DriverManager.getConnection(DATABASE_URL, "root", "admin");
// st=cn.createStatement();
// rset=st.executeQuery("select * from employee");
PreparedStatement pstmt=null;
pstmt=cn.prepareStatement("select * from employee where id=?");
pstmt.setInt(1,Integer.parseInt(args[0]));
rset=pstmt.executeQuery();
ResultSetMetaData metadata=rset.getMetaData();
System.out.println("The begining: ");
for(int i=1;i<=metadata.getColumnCount();i++)
System.out.print(metadata.getColumnName(i)+"\t");
System.out.println();
System.out.println();
while(rset.next()){
for(int i=1;i<=metadata.getColumnCount();i++)
System.out.print(rset.getObject(i)+"\t\t");
System.out.println();}
catch(Exception e){
e.printStackTrace();
finally{
try{
cn.close();
st.close();
rset.close();
catch(Exception e1){
e1.printStackTrace();
}

Where to do the abap sql statement in sapscript (PO)

Hi, all.
Hope anybody can guide me to find a solution.
My situation now is i have to do a purchase order in SAPSCRIPT starting from a standard po. I already found out all the related details as below:
Program           SAPFM06P
FORM routine      ENTRY_NEU
Form              MEDRUCK
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Thanks a lot.
So, how should i add in code in order to fetch the data frm ADRC by using that routine. Because i only the codes like below. I don't where should i start add in.
Form entry_neu using ent_retco ent_screen.
data: l_druvo like t166k-druvo,
        l_nast like nast,
        l_from_memory,
        l_doc   type meein_purchase_doc_print.
clear ent_retco.
if nast-aende eq space.
    l_druvo = '1'.
else.
    l_druvo = '2'.
endif.
call function 'ME_READ_PO_FOR_PRINTING'
       exporting
            ix_nast        = nast
            ix_screen      = ent_screen
       importing
            ex_retco       = ent_retco
            ex_nast        = l_nast
            doc            = l_doc
       changing
            cx_druvo       = l_druvo
            cx_from_memory = l_from_memory.
check ent_retco eq 0.
call function 'ME_PRINT_PO'
       exporting
            ix_nast        = l_nast
            ix_druvo       = l_druvo
            doc            = l_doc
            ix_screen      = ent_screen
            ix_from_memory = l_from_memory
            ix_toa_dara    = toa_dara
            ix_arc_params = arc_params
            ix_fonam       = tnapr-fonam          "HW 214570
       importing
            ex_retco       = ent_retco.
endform.
Or i come wrong place to add in any coding. Plz guide me.
Thanks in advance.

How to get the real SQL statement from a preparedstatement?

Hi,
I am trying to log the actual SQL sent to database by the preparedStatement. Since the original SQL I used to prepare the statement has a lot of "?" in it, after setting all the parameters in the preparedStatement, I want to get the final SQL statement executed. Is there a way to get it? Probably the SQL will depend on different drivers.
Thanks in advance.

Thanks, changhsu. I tried the tracing technique. But it only prints out the original SQL statement sent to the preparedStatement. The following is part of the log file:
======================================================================
--------NetDirect JSQLConnect Version:2.2708--------
2002-04-10 14:23:54.818 (1) Connection attempt number 1 Connection ID:1 for host:perseus
2002-04-10 14:23:55.429 (1) JSQLConnect(2.2708) Trial license - expires on:Thu Apr 25 17:47:32 CDT 2002, unlimited connections
2002-04-10 14:23:55.449 (2) Connection allocated from pool ID:2
2002-04-10 14:23:55.72 (2) [Thread[Thread-6,5,main], IO:88cb4, Dbc:1346]] SELECT SHARED_DRIVES FROM EPM_PREFS WHERE PRODUCT='PE'
2002-04-10 14:23:57.913 (2) Connection closed and returned to connection pool ID:2
2002-04-10 14:23:58.193 (3) Connection attempt number 2 Connection ID:3 for host:perseus database:epm20 SQL6.5:false
2002-04-10 14:23:58.203 (3) [Thread[Thread-6,5,main], IO:88cb3, Dbc:1347]] use epm20 set quoted_identifier,ansi_null_dflt_on,ansi_padding on set textsize 2147483647 set transaction isolation level read committed set implicit_transactions off
2002-04-10 14:24:00.356 (4) Connection allocated from pool ID:4
2002-04-10 14:24:01.168 (4) [Not Loged In@localhost, IO:88cb2, Dbc:1347]] PreparedStatement::prepare stmt:SELECT PASSWD FROM RESOURCE_INFO WHERE USER_ID=? AND DELETE_FLG IS NULL
2002-04-10 14:24:01.448 (4) [Not Loged In@localhost, IO:88cb2, Dbc:1347]] RPC:sp_prepare
2002-04-10 14:24:01.488 (4) [Not Loged In@localhost, IO:88cb2, Dbc:1347]] RPC:sp_execute
=======================================================================
I did not try to trace in SQL Server 7. I will have to find out how to do that first.
Thanks again.

Prepared SQL statement to test existence of a value in a row

Excuse my ignorance in SQL. I didn't do much in SQL queries or DB design in general, but I'm eager to learn.
Idea behind: I'm traversing a directory tree (Java, jdbc) (depth first) and want to collect all files
in that tree and put the as BLOBS into the database.
To find out whether a file is the same as another file (possibly in a different path) I calculate the md5sum
(not sure whether it is proof against collisions or if I should use SHA-256 or some combination of md5sum + chksum).
Anyway, let the md5sum be the unique value that makes the identity of a file for now.
My problem: Find the jdbc/SQL statements that let me decide whether the file (md5sum) is already stored in a ROW
upon which I can decide to either do the INSERT or mark the existing file as being present in a different path.
I stumbled across the problem in the moment when I first time tried to INSERT a row and got told that
md5sum gotta be unique.
Any ideas for design and query? The code example below is incomplete. Especially what I'm looking for is
how to construct a prepared SQL statement into which I can inject the variable later found (md5sum)
Whether I should do that by COUNT(*) or a different method?
Christoph
Here is my sketchy code (Netbeans project) under construction:
* To change this template, choose Tools | Templates
* and open the template in the editor.
package testsqlite;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.sql.*;
import java.util.Iterator;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
* @author chris
public class Main {
* @param args the command line arguments
private static Connection conn;
private static String sql="INSERT INTO part(name,md5sum) VALUES (?,?)";
private static PreparedStatement pstmnt,pstmnt_ifexists ;
private static String sql_ifexists="SELECT COUNT(*) FROM part WHERE md5sum=?"; // ???
public static void main(String[] args) throws Exception{
// TODO code application logic here
System.out.println("Testsuite-Collector\n");
String path="c:/usr/local/www/data/testsuite/mandanten/chris/probanden";
File f = new File(path);
Class.forName ("org.sqlite.JDBC");
conn =
DriverManager.getConnection("jdbc:sqlite:c:/users/chris/testsuite/versionen");
Statement stat = conn.createStatement();
pstmnt = conn.prepareStatement(sql);
pstmnt_ifexists = conn.prepareStatement(sql_ifexists);
// process
Traverse(f);
// watch result
ResultSet rs = stat.executeQuery("select * from part;");
while (rs.next()) {
System.out.print("name=" + rs.getString("name") + " ");
System.out.println("md5sum= " + rs.getString("md5sum"));
rs.close();
conn.close();
private static void Traverse(File f) throws IOException {
File[] files = f.listFiles();
for( File file : files) {
if(file.isDirectory()){
Traverse(file);
else {
try {
if(file.length() > 0){
FileInputStream fis = new FileInputStream( file );
String md5 = org.apache.commons.codec.digest.DigestUtils.md5Hex( fis );
System.out.println(file.length() +" " md5"->"+file.getPath());
// check whether md5sum is already existing
pstmnt_ifexists=?????
pstmnt.setString(1, file.getPath());
pstmnt.setString(2, md5);
pstmnt.executeUpdate();
catch (SQLException e) {
System.out.println("SQL error:" e.getMessage()"\n");
}

And you seriously think that attempting to insert a record and catching the error of it failing is a good design!?!?I certainly do. I agree with Peter here. You can either test for the existence of the record and insert it if absent, or insert the record willy-nilly and catch the exception. The second option is (a) atomic even without transactions and (b) clearly twice as efficient. Same consideration applies to e.g.
if (!map.containsKey(key))
map.put(key, value);
else
; // it was already thereas opposed to
if (!map.put(key, value)
; // it was already thereand many other situations of this kind, e.g.
try
if (InetAddress.isReachable(ip))
    s = new Socket(ip, port);
else
    ; // host not up
catch (ConnectException exc)
// the host wasn't up during connect
}as opposed to
try
s = new Socket(ip, port);
catch (ConnectException exc)
// host not up
}or
try
if (file.exists())
    in = new FileInputStream(file);
else
    ; // it wasn't there
catch (IOException exc)
// it wasn't there, etc ...
}as opposed to
try
in = new FileInputStream(file);
catch (FileNotFoundException exc)
// it wasn't there
}Slight absence of timing window problems in the cases that detect via exceptions, and considerably simpler code. Phobias about how to use exception handling need to be overcome.
I've also had it seriously argued to me that you shouldn't catch EOFExceptions, merely change the format of your file so you 'know' when one is coming up. Sorry to say that I think this sort of thing is complete rubbish. There is a need for an out of band EOF signal with all the readXXX() methods, and this is it.

Oracle + Unix question , Error validation for SQL statements in co process

Hi,
If I use co process in a shell script , what is the best way to do the error validation of the execution of any sql statements . I was trying to change the following code to make use of co process concept. When I tried echo $? after the execution of a "wrong statements"
it is still giving Zero output ( meaning success)
<<<<<<<<<<<<<<<<<<<<<<<<<<<
cat ${CFG_DIR}/srs_indx.lst | egrep -v '^#' | egrep -v '^[    ]*$' | while read x
do
echo " Processing values :: pre $pre tbl $tbl indx $indx tblspc $tblspc cols $cols param $param" >> ${LOGS_DIR}/srs_indx.log
sqlplus ${BIZSTG} << EOT >> ${LOGS_DIR}/srs_indx.log
set verify on timing on term on echo on feedback on serveroutput on
WHENEVER SQLERROR CONTINUE
drop index $indx;
WHENEVER SQLERROR EXIT FAILURE
alter session set query_rewrite_enabled = true;
create $pre index $indx on $tbl ($cols)
tablespace $tblspc
$param;
exit
EOT
RC=$?
if ( test $RC -ne 0 )
then
     ERR_MSG="ERROR in creating index $indx for table $tbl from srs_indx.ksh of $ENVIR : $APP by `whoami`@`hostname` on `date` "
     echo $ERR_MSG >> ${LOGS_DIR}/srs_indx.log
     process_warning ${LOGS_DIR}/srs_indx.log
     exitstat=1
else
     echo "$indx created at `date`" >> ${LOGS_DIR}/srs_indx.log
fi
done
>>>>>>>>>>>>>>>>>>>>
Any help will be appreciated .
with thanks and regards
Ranjeesh K R

Hi,
Thanks for the response, I guess people misunderstood my question .
My question was about "error handling in case of CO PROCESS". For those who don't know about this, in case CO PROCESS you just need to login once to Oracle. In my above code It is logging in & out for each entry in the list. CO process statements may look Similar to SQL statements in pro*C. In PRO*C we use EXEC, but here print -p statements..
a sample is given for those who are new to co process.
sqlplus -s /nolog |& # Open a pipe to SQL*Plus
print -p -- 'connect user/password@instance'
print -p -- 'set feed off pause off pages 0 head off veri off line 500'
print -p -- 'set term off time off'
print -p -- "set sqlprompt ''"
print -p -- "select sysdate from dual;"
read -p SYSDATE
print -p -- "select user from dual;"
read -p USER
print -p -- "select global_name from global_name;"
read -p GLOBAL_NAME
print -p -- exit
echo SYSDATE: $SYSDATE
echo USER: $USER
echo GLOBAL_NAME: $GLOBAL_NAME
But I got stuck during error handling of these SQL statements, especially the $? / $* returns 0 even after an erroneus execution.
Regards

Printing Prepared Statement Query

Hi all,
Is it possible to print Prepared Statement query. When i give System.out.println(query);, i get the query with '?' and not with the actual value sent. How can i print the query with the value passed in place of the '?' ?

Hi all,
Is it possible to print Prepared Statement
tatement query. When i give
System.out.println(query);, i get the query with '?'
and not with the actual value sent. How can i print
the query with the value passed in place of the '?' ?The simple answer is that you can't (AFAIK), but some database drivers are able to log the sql statements.
Kaj

Print SQL Statement

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