Jdev9i, JSP, Execute a Sql Select statement directly?

Hi,
I need the syntax to execute a Sql SELECT statement directly against Oracle database and access rows(returned by SELECT statemnet) in a JSP page or Servlet? Any sample code available for this.
Thanks.

Hi Ali,
I didn't work a lot with jsp ,but on this url some help .
http://otn.oracle.com/docs/products/oracle8i/doc_library/817_doc/java.817/a83726/basics7.htm#1014578

Similar Messages

Usgent: using jsp date in sql select statement

i have something like this:
String day;
String month;
String year;
select * from event where date = xxx
where xxx is supposed to be obtained from the strings (day, month, year) and changed into a format that can be compared to in the select statement.
what should xxx be?
thks as lot cos i ahe been figuring out for very long.

Use PreparedStatement and SimpleDateFormat:
String year = "2002";
String month = "9";
String day = "12";
String sDate = day + "/" + month + "/" + year;
SimpleDateFormat df = new SimpleDateFormat("M/d/yyyy");
Date dDate = df.parse(sDate);
Connection con = DriverManager.getConnection(user, pw);
PreparedStatement ps = con.prepareStatement("SELECT * FROM event WHERE date = ?");
ps.setDate(1, dDate);
ResultSet rs = ps.executeQuery();
while (rs.next()) {
rs.close();
ps.close();
con.close();

Using column number inplace of column name in SQL Select statement

Is there a way to run sql select statements with column numbers in
place of column names?
Current SQL
select AddressId,Name,City from AddressIs this possible
select 1,2,5 from AddressThanks in Advance

user10962462 wrote:
well, ok, it's not possible with SQL, but how about PL/SQL?As mentioned, using DBMS_SQL you can only really use positional notation... and you can also use those positions to get the other information such as what the column is called, what it's datatype is etc.
CREATE OR REPLACE PROCEDURE run_query(p_sql IN VARCHAR2) IS
v_v_val     VARCHAR2(4000);
v_n_val     NUMBER;
v_d_val     DATE;
v_ret       NUMBER;
c           NUMBER;
d           NUMBER;
col_cnt     INTEGER;
f           BOOLEAN;
rec_tab     DBMS_SQL.DESC_TAB;
col_num     NUMBER;
v_rowcount NUMBER := 0;
BEGIN
-- create a cursor
c := DBMS_SQL.OPEN_CURSOR;
-- parse the SQL statement into the cursor
DBMS_SQL.PARSE(c, p_sql, DBMS_SQL.NATIVE);
-- execute the cursor
d := DBMS_SQL.EXECUTE(c);
-- Describe the columns returned by the SQL statement
DBMS_SQL.DESCRIBE_COLUMNS(c, col_cnt, rec_tab);
-- Bind local return variables to the various columns based on their types
FOR j in 1..col_cnt
LOOP
    CASE rec_tab(j).col_type
      WHEN 1 THEN DBMS_SQL.DEFINE_COLUMN(c,j,v_v_val,2000); -- Varchar2
      WHEN 2 THEN DBMS_SQL.DEFINE_COLUMN(c,j,v_n_val);      -- Number
      WHEN 12 THEN DBMS_SQL.DEFINE_COLUMN(c,j,v_d_val);     -- Date
    ELSE
      DBMS_SQL.DEFINE_COLUMN(c,j,v_v_val,2000); -- Any other type return as varchar2
    END CASE;
END LOOP;
-- Display what columns are being returned...
DBMS_OUTPUT.PUT_LINE('-- Columns --');
FOR j in 1..col_cnt
LOOP
    DBMS_OUTPUT.PUT_LINE(rec_tab(j).col_name||' - '||case rec_tab(j).col_type when 1 then 'VARCHAR2'
                                                                              when 2 then 'NUMBER'
                                                                              when 12 then 'DATE'
                                                     else 'Other' end);
END LOOP;
DBMS_OUTPUT.PUT_LINE('-------------');
-- This part outputs the DATA
LOOP
    -- Fetch a row of data through the cursor
    v_ret := DBMS_SQL.FETCH_ROWS(c);
    -- Exit when no more rows
    EXIT WHEN v_ret = 0;
    v_rowcount := v_rowcount + 1;
    DBMS_OUTPUT.PUT_LINE('Row: '||v_rowcount);
    DBMS_OUTPUT.PUT_LINE('--------------');
    -- Fetch the value of each column from the row
    FOR j in 1..col_cnt
    LOOP
      -- Fetch each column into the correct data type based on the description of the column
      CASE rec_tab(j).col_type
        WHEN 1 THEN DBMS_SQL.COLUMN_VALUE(c,j,v_v_val);
                     DBMS_OUTPUT.PUT_LINE(rec_tab(j).col_name||' : '||v_v_val);
        WHEN 2 THEN DBMS_SQL.COLUMN_VALUE(c,j,v_n_val);
                     DBMS_OUTPUT.PUT_LINE(rec_tab(j).col_name||' : '||v_n_val);
        WHEN 12 THEN DBMS_SQL.COLUMN_VALUE(c,j,v_d_val);
                     DBMS_OUTPUT.PUT_LINE(rec_tab(j).col_name||' : '||to_char(v_d_val,'DD/MM/YYYY HH24:MI:SS'));
      ELSE
        DBMS_SQL.COLUMN_VALUE(c,j,v_v_val);
        DBMS_OUTPUT.PUT_LINE(rec_tab(j).col_name||' : '||v_v_val);
      END CASE;
    END LOOP;
    DBMS_OUTPUT.PUT_LINE('--------------');
END LOOP;
-- Close the cursor now we have finished with it
DBMS_SQL.CLOSE_CURSOR(c);
END;
SQL> exec run_query('select empno, ename, deptno, sal from emp where deptno = 10');
-- Columns --
EMPNO - NUMBER
ENAME - VARCHAR2
DEPTNO - NUMBER
SAL - NUMBER
Row: 1
EMPNO : 7782
ENAME : CLARK
DEPTNO : 10
SAL : 2450
Row: 2
EMPNO : 7839
ENAME : KING
DEPTNO : 10
SAL : 5000
Row: 3
EMPNO : 7934
ENAME : MILLER
DEPTNO : 10
SAL : 1300
PL/SQL procedure successfully completed.
SQL> exec run_query('select * from emp where deptno = 10');
-- Columns --
EMPNO - NUMBER
ENAME - VARCHAR2
JOB - VARCHAR2
MGR - NUMBER
HIREDATE - DATE
SAL - NUMBER
COMM - NUMBER
DEPTNO - NUMBER
Row: 1
EMPNO : 7782
ENAME : CLARK
JOB : MANAGER
MGR : 7839
HIREDATE : 09/06/1981 00:00:00
SAL : 2450
COMM :
DEPTNO : 10
Row: 2
EMPNO : 7839
ENAME : KING
JOB : PRESIDENT
MGR :
HIREDATE : 17/11/1981 00:00:00
SAL : 5000
COMM :
DEPTNO : 10
Row: 3
EMPNO : 7934
ENAME : MILLER
JOB : CLERK
MGR : 7782
HIREDATE : 23/01/1982 00:00:00
SAL : 1300
COMM :
DEPTNO : 10
PL/SQL procedure successfully completed.
SQL> exec run_query('select * from dept where deptno = 10');
-- Columns --
DEPTNO - NUMBER
DNAME - VARCHAR2
LOC - VARCHAR2
Row: 1
DEPTNO : 10
DNAME : ACCOUNTING
LOC : NEW YORK
PL/SQL procedure successfully completed.
SQL>

How to write select statement directly in java file instead of using vo

Hi,
I have written the following code in my java file:
if(empvo==null)
empvo=worklistamimpl2.createViewObject("InvoiceVO", "xxetfc.oracle.apps.icx.icatalog.shopping.server.InvoiceVO");
if(empvo!=null){
OAViewObject oaviewobject2 = (OAViewObject)worklistamimpl2.findViewObject("InvoiceVO");
OAViewObjectImpl oaviewobjectimpl = (OAViewObjectImpl)oapagecontext.getApplicationModule(oawebbean).findViewObject("InvoiceVO");
oaviewobject2.setWhereClause("Invoice_num="+" ' " + s + " ' ");
oaviewobjectimpl.executeQuery();
String abc = (String)oaviewobjectimpl.first().getAttribute("Invoice_id");
It is giving me error as
oracle.apps.fnd.framework.OAException: oracle.jbo.SQLStmtException: JBO-27122: SQL error during statement preparation. Statement: SELECT * FROM (select invoice_id from ap_invoices_all) QRSLT WHERE (Invoice_num='ERS15022012_3')
1. Why is this error coming.. how to solve this
2. Instead of using vo how can i write select statement directly in the above code
Thanks,
Edited by: user10873676 on Apr 9, 2012 1:18 AM
Edited by: user10873676 on Apr 9, 2012 1:21 AM

it says java.sql.SQLSyntaxErrorException: ORA-00904: "INVOICE_NUM": invalid identifier
where as invoice_num column is present in my table

Exporting SQL Select statement to spreadsheet

Hi all, basic question that I couldn't find the answer to while googling and searching the Oracle documentation.
What is the code for exporting the result of a SQL Select statement to a spreadsheet such as Excel or Calc? In Oracle SQL Developer I tried saving the output as an XML file but it did not come out properly and I tried using EXPORT at the end of the statement but it gave an error message and I am not sure if this is the right command or what the syntax is. Thanks.

Here's an example of one way to create CSV files that most spreadsheet type applications are able to read...
As sys user:
CREATE OR REPLACE DIRECTORY TEST_DIR AS '\tmp\myfiles'
GRANT READ, WRITE ON DIRECTORY TEST_DIR TO myuser
/As myuser:
CREATE OR REPLACE PROCEDURE run_query(p_sql IN VARCHAR2
                                     ,p_dir IN VARCHAR2
                                     ,p_header_file IN VARCHAR2
                                     ,p_data_file IN VARCHAR2 := NULL) IS
v_finaltxt VARCHAR2(4000);
v_v_val     VARCHAR2(4000);
v_n_val     NUMBER;
v_d_val     DATE;
v_ret       NUMBER;
c           NUMBER;
d           NUMBER;
col_cnt     INTEGER;
f           BOOLEAN;
rec_tab     DBMS_SQL.DESC_TAB;
col_num     NUMBER;
v_fh        UTL_FILE.FILE_TYPE;
v_samefile BOOLEAN := (NVL(p_data_file,p_header_file) = p_header_file);
BEGIN
c := DBMS_SQL.OPEN_CURSOR;
DBMS_SQL.PARSE(c, p_sql, DBMS_SQL.NATIVE);
d := DBMS_SQL.EXECUTE(c);
DBMS_SQL.DESCRIBE_COLUMNS(c, col_cnt, rec_tab);
FOR j in 1..col_cnt
LOOP
    CASE rec_tab(j).col_type
      WHEN 1 THEN DBMS_SQL.DEFINE_COLUMN(c,j,v_v_val,2000);
      WHEN 2 THEN DBMS_SQL.DEFINE_COLUMN(c,j,v_n_val);
      WHEN 12 THEN DBMS_SQL.DEFINE_COLUMN(c,j,v_d_val);
    ELSE
      DBMS_SQL.DEFINE_COLUMN(c,j,v_v_val,2000);
    END CASE;
END LOOP;
-- This part outputs the HEADER
v_fh := UTL_FILE.FOPEN(upper(p_dir),p_header_file,'w',32767);
FOR j in 1..col_cnt
LOOP
    v_finaltxt := ltrim(v_finaltxt||','||lower(rec_tab(j).col_name),',');
END LOOP;
-- DBMS_OUTPUT.PUT_LINE(v_finaltxt);
UTL_FILE.PUT_LINE(v_fh, v_finaltxt);
IF NOT v_samefile THEN
    UTL_FILE.FCLOSE(v_fh);
END IF;
-- This part outputs the DATA
IF NOT v_samefile THEN
    v_fh := UTL_FILE.FOPEN(upper(p_dir),p_data_file,'w',32767);
END IF;
LOOP
    v_ret := DBMS_SQL.FETCH_ROWS(c);
    EXIT WHEN v_ret = 0;
    v_finaltxt := NULL;
    FOR j in 1..col_cnt
    LOOP
      CASE rec_tab(j).col_type
        WHEN 1 THEN DBMS_SQL.COLUMN_VALUE(c,j,v_v_val);
                    v_finaltxt := ltrim(v_finaltxt||',"'||v_v_val||'"',',');
        WHEN 2 THEN DBMS_SQL.COLUMN_VALUE(c,j,v_n_val);
                    v_finaltxt := ltrim(v_finaltxt||','||v_n_val,',');
        WHEN 12 THEN DBMS_SQL.COLUMN_VALUE(c,j,v_d_val);
                    v_finaltxt := ltrim(v_finaltxt||','||to_char(v_d_val,'DD/MM/YYYY HH24:MI:SS'),',');
      ELSE
        v_finaltxt := ltrim(v_finaltxt||',"'||v_v_val||'"',',');
      END CASE;
    END LOOP;
-- DBMS_OUTPUT.PUT_LINE(v_finaltxt);
    UTL_FILE.PUT_LINE(v_fh, v_finaltxt);
END LOOP;
UTL_FILE.FCLOSE(v_fh);
DBMS_SQL.CLOSE_CURSOR(c);
END;This allows for the header row and the data to be written to seperate files if required.
e.g.
SQL> exec run_query('select * from emp','TEST_DIR','output.txt');
PL/SQL procedure successfully completed.Output.txt file contains:
empno,ename,job,mgr,hiredate,sal,comm,deptno
7369,"SMITH","CLERK",7902,17/12/1980 00:00:00,800,,20
7499,"ALLEN","SALESMAN",7698,20/02/1981 00:00:00,1600,300,30
7521,"WARD","SALESMAN",7698,22/02/1981 00:00:00,1250,500,30
7566,"JONES","MANAGER",7839,02/04/1981 00:00:00,2975,,20
7654,"MARTIN","SALESMAN",7698,28/09/1981 00:00:00,1250,1400,30
7698,"BLAKE","MANAGER",7839,01/05/1981 00:00:00,2850,,30
7782,"CLARK","MANAGER",7839,09/06/1981 00:00:00,2450,,10
7788,"SCOTT","ANALYST",7566,19/04/1987 00:00:00,3000,,20
7839,"KING","PRESIDENT",,17/11/1981 00:00:00,5000,,10
7844,"TURNER","SALESMAN",7698,08/09/1981 00:00:00,1500,0,30
7876,"ADAMS","CLERK",7788,23/05/1987 00:00:00,1100,,20
7900,"JAMES","CLERK",7698,03/12/1981 00:00:00,950,,30
7902,"FORD","ANALYST",7566,03/12/1981 00:00:00,3000,,20
7934,"MILLER","CLERK",7782,23/01/1982 00:00:00,1300,,10The procedure allows for the header and data to go to seperate files if required. Just specifying the "header" filename will put the header and data in the one file.
Adapt to output different datatypes and styles are required.
There are other methods for specifically creating Excel workbooks with multiple sheets etc. and details can be found in the SQL and PL/SQL FAQ at the top of the forum:
{message:id=9360007}

Parsing an OPEN SQL select statement

Hi all,
I want to parse an open SQL select statement to get the list of tables and the corresponding fields in the select statement.
Is there some ABAP-internal syntax from the SAP Database Interface that does this? or is the only option to do this is to manually break the statement?
Thanks.
Girish

Hi,
I doubt if there is something like that available to use. It think you will have to write a parser for yourself.
Regards

Convert sql select statement to oracle

Hi All,
Can anyone help me converting this Sql select statement to oracle ....
-----------------------------------------Query--------------------------------------------------------------
select emp_master.emp_code ,
emp_master.dept_cd ,
attendance_master.daily_attn_code ,
attendance_master.linked_column ,
case when location.payroll_status <> 'N' and eDocsNetEmployeesLeave.StartDate < dateadd(mm, 1 , convert(smalldatetime, datename(yy ,location.next_pay_date) + '/'+ datename(mm ,location.next_pay_date)+ '/01'))
then
dateadd(mm, 1 , convert(smalldatetime, datename(yy ,location.next_pay_date) + '/'+ datename(mm ,location.next_pay_date)+ '/01'))
when eDocsNetEmployeesLeave.StartDate < convert(smalldatetime, datename(yy ,location.next_pay_date) + '/'+ datename(mm ,location.next_pay_date)+ '/01')
then convert(smalldatetime, datename(yy ,location.next_pay_date) + '/'+ datename(mm ,location.next_pay_date)+ '/01') else eDocsNetEmployeesLeaveDetails.StartDate
end ,
eDocsNetEmployeesLeaveDetails.NoOfDays,
case when eDocsNetEmployeesLeave.StartDate > location.next_pay_date
then convert(datetime , convert(varchar, dateadd(ss,-1, dateadd(mm, 1, convert(datetime , datename(yy,eDocsNetEmployeesLeave.StartDate)+ '/' + datename(mm,eDocsNetEmployeesLeave.StartDate)+ '/01') )),106) )
else
case when location.payroll_status <> 'N'
then dateadd(mm,1,location.next_pay_date)
else location.next_pay_date
end
end as PaymentDate               ,
isnull(grade_master.leave_type,'C') ,
eDocsNetEmployeesLeave.StartDate ,
eDocsNetEmployeesLeaveDetails.LeaveType
from eDocsNetEmployeesLeave ,
eDocsNetEmployeesLeaveDetails ,
eDocsNetLeaveTypes ,
emp_master ,
grade_master ,
attendance_master ,
location
where eDocsNetEmployeesLeaveDetails.RequestID     = eDocsNetEmployeesLeave.RequestID and
eDocsNetEmployeesLeave.EmployeeID = emp_master.emp_code and
eDocsNetEmployeesLeaveDetails.LeaveType = eDocsNetLeaveTypes.LeaveTypeID and
eDocsNetLeaveTypes.loc_cd = emp_master.loc_cd and
location.loc_cd = emp_master.loc_cd and
attendance_master.loc_cd = emp_master.loc_cd and
attendance_master.linked_column = eDocsNetLeaveTypes.LinkedAttendance and
grade_master.loc_cd = emp_master.loc_cd and
grade_master.grade_cd = emp_master.grade_cd and
eDocsNetEmployeesLeaveDetails.RequestID      = @RequestID
order by eDocsNetEmployeesLeaveDetails.StartDate
Thanks in Advance
Smiley

Seems like you want to convert a SQL statement from the ??? dialect to the Oracle dialect. *(It would be useful to indicate the non-ANSI standard SQL you are starting with.)
Part of the problem is that you use several date related functions. Some are unnecessary in Oracle and some need to translated into Oracle functions as found in the Functions section (chapter 5) of the SQL Reference manual at http://www.oracle.com/pls/db102/homepage
Note that columns and expressions of type 'date' in ORacle always contain all of "yyyy mm dd hh mi ss" and you need to format and trauncate as necessary.
Also note that '09-JAN-31' is NOT an Oracle date, but rather a character representation of a date which must be converted to/from a date expression. You will often need to use the to_date() and to_char() functions with a format mask as the second parameter. This is also descreibed in the first 2 chapters of the SQL Reference manual.

Javascript and sql select statement

I am working in html db in the 10 g environment. I'm trying to create an "auto suggestion function" that predicts values as the user enters characters into a text field. I've gotten it to work by hard coding the values in the function, ie: states. btw: there are several external javascript files at work here.
What I want is to create a dynamic link to the database to gather, say, all names of providers at the time the page is built to use in the auto suggest format. I want to put this into a javascript routine and I'm having problems finding out how to mix the sql select statement into the javascript function.
For the states example, I'm using:
function StateSuggestions() {
this.states = [
"Alabama", "Alaska", "Arizona", "Arkansas",
"California", "Colorado", "Connecticut",..."Wyoming" ];
Can I substitute the hard coded data (states) with a sql select statement such
as:
select name from <dbtable> ???
How does this need to be "wrapped" or containerized?
Thank you. You have a great product in html db and your site is very useful. I appreciate everything you have done to assist us. Again, thank you.

Hi,
You can use TRUNC with 2 arguments to get the first DATE in a month, year, quarter, week, hour, minute, ISO year, ...
SELECT TRUNC ( ADD_MONTHS ( SYSDATE
                           , 12
              , 'MONTH'
              )     AS first_of_month
FROM    dual
;The DATE returned will be in the same month, year, quearter, ... as the first argument.
\We convered the last day of the month in [your previous question|http://forums.oracle.com/forums/message.jspa?messageID=3942939#3942939].
At that time, I warded about using LAST_DAY as a cutoff point; TRUNC is a much better way.
For example, to find all appointment_dates in the current month next year:
SELECT *
FROM    appointments
WHERE   appointment_date >= TRUNC (ADD_MONTHS (SYSDATE, 12), 'MONTH')
AND     appointment_date < TRUNC (ADD_MONTHS (SYSDATE, 13), 'MONTH')Note that
the first part of the WHERE clause calls for dates on or equal to the beginning of the 12th month in the future, but
the second part of the WHERE clause calls for dates before, not equal to , the beginning of the 13th month in the future.

JDBC comm.channel issue with MS SQL select statement

Hello,
We are using JDBC adapter to connect to an MS SQL database.
This is the comm.channel config.
com.microsoft.sqlserver.jdbc.SQLServerDriver
jdbc:sqlserver://<DNSname>:1433;databaseName=PSMI
Activation of channel is successful.
But when starting a select on a table of the database we will get this error for any table there in comm.channel monitoring.
Message processing failed. Cause: com.sap.aii.af.ra.ms.api.RecoverableException: Error processing request in sax parser: Error when executing statement for table/stored proc. 'TABLENAME' (structure 'STATEMENT'): com.microsoft.sqlserver.jdbc.SQLServerException: Invalid object name 'SAP_Header'.
Error processing request in sax parser: Error when executing statement for table/stored proc. 'TABLENAME' (structure 'STATEMENT'): com.microsoft.sqlserver.jdbc.SQLServerException: Invalid object name 'SAP_Header'.
Error while parsing or executing XML-SQL document: Error processing request in sax parser: Error when executing statement for table/stored proc. 'TABLENAME' (structure 'STATEMENT'): com.microsoft.sqlserver.jdbc.SQLServerException: Invalid object name 'SAP_Header'.
The table is existing because we can access it from excel database connect.
The connect address is the same in Excel as in comm.channel.
Installed driver is for JDBC for 2000/2005 (1.2/4). for JDK 1.4
Your help is really appreciated!
Best regards
Dirk

Hi Dirk,
This is the comm.channel config.
com.microsoft.sqlserver.jdbc.SQLServerDriver
jdbc:sqlserver://<DNSname>:1433;databaseName=PSMI
I hope the DNSname you using is your Server name of the SQL Server (IP/ServerName) you trying to connect to.
Please ensure that if you are using Hostname the entry is made in the host file at server level against the IP.
Try using the Connection string as :
jdbc:microsoft:sqlserver://IP(hostname)\ServerName;DatabaseName
Cheers
Dhwani
Edited by: dhwani kamdar on Jun 11, 2010 5:31 PM

ALTER SESSION executed before every select statement

When I log what the oracle jdbc driver is doing I see the following before EVERY select statement:
ALTER SESSION SET ISOLATION_LEVEL = READ COMMITTED
I know what this means and that it is the oracle default, but:
as this is the default why does the driver have to send this information across the network to the database for every single query? Is there anyway to prevent it? We've looked at network traffic and this ALTER SESSION is adding 10 percent and it seems, at least to me, that it should be unecessary.
I've searched around but cannot find anything directly relating to this.
Thanks.

Do you call connection.setTransactionIsolation()? That causes exactly that statement to be executed.
Do you use a connection pool? If yes: check if the pool calls setTransactionIsolation() - read the source, or ask the vendor, or decompile it (if that is legal in your part of the world.) If not using a pool: get one.

How to generate mutiple Results for multiple SQL SELECT statements

I just downloaded SQL Developer 1.5 and play around with it.
On a daily basis, I need run 4 different SELECT statements and dump the output of each SELECT into an CSV file and send to some users. In SQL Navigator, I can select all 4 SELECT statements and execute them at same time. Once all complete, I will see 4 tabs, each represent the output for each SELECT statement. Then I can export output from each tab into a CSV file.
It seems that SQL Developer 1.5 still can't run mutiple SELECT statements and display the output of each statement into a separate "Results" tab so that I can export the data into multiple CSV files easily.
Right now, I have to hightlight each SELECT statement and press F9, then export the output data into CSV.
I wish I can execute 4 SELECT statements all in once on SQL Developer and get all the output data and export 4 times into 4 CSV files.
Thanks!
Kevin

How about doing it as a set of tabs within the Resuls Tab?
So you would have your Top row of tabs:
Results, Script Output, Explain, AutoTrace, DBMS Output and OWA Output
Then When you have the Results tab selected you could have a row of tabs beneath the Top row with one tab for each result set. Switching between result sets should switch which section of SQL is highlighted as the "Current SQL".
A similar mechinism could be employed for each of the top level tabs where it makes sense to have multiple output tabs.
A further refinement of this feature might be to allow the result tabs to be dockable within the parent tab so that multiple result tabs can be viewed simultaneously. This way 2 or more explain plans (for example) could be visually compared without requiring the code to exist in two separate code panes.

How to use variables in an sql select statement.

Hi, I have seen examples using the update, but nothing using a select statement.
I have four variables I am getting from drop down menus in my JSP I set the user selected items to strings.
How would I create the select statement like this:
.String XName = request.getParameter("UserInputX");
rsInResult = stmtInResult.executeQuery("SELECT ColumxX FROM TableZ WHERE ColumnX = XName")Obviously it tries to read "XName" as a column and of course can't find it, how would I set it up to have it see the Value of XName and not the literal XName.

read this:
rsInResult = stmtInResult.executeQuery("SELECT ColumxX FROM TableZ WHERE ColumnX = '"+XName+"')
{code}
better way is PreparedStatement:
{code}
     // example code to change password to an user in the USERS table
     String newPWD = "my password";
     String user = "luxjava";
     PreparedStatement prepStat;
     String updatePWD = "UPDATE LOGISTIC.USERS "+
                              "SET logistic.users.password = ? "+
                              "WHERE logistic.users.username = ?";
     prepStat = ql.conDb.prepareStatement(updatePWD);
     prepStat.setString(1, newPwd);
     prepStat.setString(2, user);
     int zeroNotFound = prepStat.executeUpdate();
     if (zeroNotFound==0)
          ql.conDb.rollback();
          prepStat.close();
     else
          ql.conDb.commit();
          prepStat.close();
{code}
... use the SQLException to capture errors

Query regarding Oracle SQL select statement

Hi,
How does Oracle ensures a consistent snapshot with the select statement
without locking the table. My question is summarized with an example below:
1. At time T1, Oracle select statement is fired and is fetching the result.
2. At time T2, some DML operation is performed on the same table on which
the select was executed and a commit was fired.
3. At time T3, The Oracle select statement (Step 1) completes.
My question is whether the records of transaction at time T2 will be visible at time T3 or not?
If "not", then does it mean that Oracle retrieves the rows from the time of last commit.
I would also like to know if for the above mechanism, Oracle would make use of the rollback segemt to access the rows at a particular instant of time.
TIA
Regards,
Raj

This is called Read Consistency in the oracle. Its all about SCN before starting the transaction.
Lets say
1. T1 executs SELECT statement on EMP table.
2. T2 made an update on the EMP and commited.
But, T1 only still sees only old image of the data not the new one. This is called read consistency.
You will be having two images in the buffer, one is consistent and changed image.
When the T1 give SELECT statement it notes the SCN of the transaction. Read oracle document about read consistency.
SJH.

Retrieve floating point data with an sql select statement

Hi
I'm quite new to using sql but I have a system working where I can read and write strings to an access database.
Now I want to retrieve a a float, from a field where another field in the same post corresponds to a specified float, with a select statement.
When using strings I wrote
SELECT column_name FROM [table_name] WHERE column2_name='value'
in my query.
But instead of getting the desired value I get an error message telling me that I have a
"Data type mismatch in criteria expression".
I think I understand why but does anybody know what I should have written instead?

Is the data type of column2_name String? If it's not, I think the single-quotes you have around 'value' will cause that error.
Jim
You're entirely bonkers. But I'll tell you a secret. All the best people are. ~ Alice

SQL 'SELECT' statement

I use LV7.1.1 to read/update an Access Database, using DB Toolset.
When I use the Sql 'SELECT' query with LIKE operator, I do not get any results. (no error is returned).
The statement is:
SELECT Machine, System, AD, Query_Position, RefDesignator, Description
FROM AllLevel
WHERE ((Machine LIKE '*') AND (System LIKE '*') AND (AD ='2000CV20012') AND (Query_Position ='AD') AND (RefDesignator='u1'))
It seems that the LIKE '*' is not translated well by the 'Microsoft Jet 4.0 OLE DB Provider'. I must mention that the statement works just fine under Access, not using LV.
Is there any alternative format for LIKE '*' that do the job?
Regards,
Joseph Moshe

Maybe Access has different syntax, but for T-SQL, the proper syntax for LIKE is to use the % character to match any string of zero or more characters and the _ character to match a single characer. In fact, the documentation says that while * and ? are understood,
"The % and _ (underscore) wildcard characters should be used only
through the Jet OLE DB provider and ActiveX® Data Objects (ADO) code.
They will be treated as literal characters if they are used though the
Access SQL View user interface or Data Access Objects (DAO) code."

Jdev9i, JSP, Execute a Sql Select statement directly?

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