Getting Column names (header) of a table dynamically

Dear Experts,
Greetings.
I have a requirement in which I need to get the column name (header) of a table when the user clicks on a column.
Kindly suggest me the possible ways.
Thanks in advance.
Regards
Sathya

Hi,
use one of the following based on your requirement
Bind the header text to a context attribute and access this attribute from code when clicked on the column.
Or use parameter mapping.
Regards
Ayyapparaj

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Hi,
Can any one suggests me a way to get column names from a particular table of a database from the java.sql.Connection object. ?
Thanks in advance.

Connection connection;
DatabaseMetaData metadata = connection.getMetaData();
String[] names = {"TABLE"};
ResultSet tables = metadata.getTables(null,"%", "%", names);
while (tables.next()) {
String tableName = tables.getString("TABLE_NAME");
ResultSet columns = metadata.getColumns(null, "%", tableName, "%");
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How to use get column name.vi in SQL toolkit 2.0?

Due to the vi "get column name.vi" paremeters,no table name has connected to the vi. So, I want to ask how to use this vi for gain one column name of a table. Maybe there are some other ways to solve column name getting.
Thanks.

Thanks!
Error 4101 Description:
Execute SQL - The connection, statement, or query handle you provided is not valid.
I don't just used the toolkit in a while,now, I am developing a irrigation system. For the table field names defined by users,column names must be known before any select operations. Do you have any other good idea about drawing out the columnname parameters?
As you know, a valid DSN and table have been also available. The database I used is Access. The bad thing to me is that there is no any text information gotten. And I think, it may be some problems in connection way which I don't find out.
Really appreciated by your reply.
Could you give me some example in the aspect?
Thank you again.

Setting the header of a Column group in a Advanced table dynamically

Hi All,
There is a requirement to set the Header of a column group in a Advanced table dynamically by fetching the values from a view attribute.
Code :
OAAdvancedTableBean spiderTbl1 ;
Problem:
It is not able to set the value for the header inspite of getting the handle of the bean.
Analysis:
the same piece of code works for
1) Setting the text of the advanced table
2) Setting the header of a column in a column group
Please let me know if there is anything more that needs to be done for setting the prompt of a column group header.
Thanks in advance!

I have posted it without giving the complete code by mistake. Below is the code:
OAAdvancedTableBean spiderTbl1 ;
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if (spiderHdr1!=null) {
spiderHdr1.setAttributeValue(OAWebBeanConstants.PROMPT_ATTR,
new OADataBoundValueViewObject(spiderHdr1,
"SpiderCategory1",
"ProjRegPVO1"));
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How to display Column Names of a Database Table in JSP

Dear All,
I want to display all the attribute names(column names) of a database table on JSP.
[ ex: mytable contains : ( EmpId,EmpName,Dept ). This should be display as EmpId--text box
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Yeah make use of methods like
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Getting column names using EJB3.0

Hi,
Could someone help me how to get column names in EJB3.0.
I am having reference to folloiwng ejb.
@Entity
@Table(name = "users")
@org.hibernate.annotations.Entity(dynamicInsert = true, dynamicUpdate = true)
@SequenceGenerator(name = "users", sequenceName = "users")
public class User {
private Long userId;
private String username;
@Id
@GeneratedValue(strategy = GenerationType.AUTO, generator = "users_seq")
@Column(name = "user_id")
public Long getUserId() {
return userId;
public void setUserId(Long userId) {
this.userId = userId;
@NotNull
@Column(name = "username")
public String getUsername() {
return username;
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this.username = username;
Thanks in advance

You shouldn't be getting column names from EJBs.
You need to know the object, the schema, and how to map one to the other.
So you should look at the SQL table "users" and map this object to it.
%

Getting column names empty from MS Access database

Hi,
I have MS Access intalled in my desktop.I am using aveConnect jdbc driver to connect to MS Access database.
I am trying to retrieve all the table name and column names of respective tables .
But when i get column name as empty string when i try to retrieve the column name of a table.
here is the sample code i use.
I am getting the column count of a particular table and type of the column.
It would be nice if some could help me .
ResultSet ColumnData = meta.getColumns(null, null, "TBLACCOUNT", null);
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                    System.out.println("The data type of the first column is: " +columnType);
thanks
sheeba

You're here in a JDBC forum, not a SQL forum. I suggest you to start learning SQL and come back once you have JDBC issues.
Here is a list of links to all SQL tutorials available on the Internet.
http://www.google.com/search?q=sql+tutorial

Getting column names from cursor

Hi all
I have procedure which produces list of applied for jobs web page(using htp. package)
I got result in cursor, but have to provide dinamic sort, based on colimn pressed
procedure my_application_list
(pi_resume_num     in varchar2 default null
,pi_sort_col     in varchar2 default null
,pi_page_no     in varchar2 default null
,pi_action     in varchar2 default null
,pi_msg          in varchar2 default null
is
CURSOR cur_job IS
     SELECT      jtl.JOB_TITLE
          ,jtl.COMPANY_NAME
          ,a.APPLY_DATE
          ,a.lang
          ,a.job_id
     FROM job_tl jtl, applied_for_job a, gateway gt
     WHERE a.job_seeker_id=app.job_Seeker
     AND a.job_id=jtl.job_id
     AND a.lang=jtl.lang
     AND a.gateway=gt.gateway
     AND jtl.lang=(SELECT substr(MIN(lt.order_list||jtl0.lang),2) lang
               FROM      job_tl jtl0
                    ,language_tl lt
               WHERE jtl0.job_id = a.job_id
               AND jtl0.lang=lt.lang
               AND lt.gui_lang=app.language)
     ORDER BY pi_sort_col
rest of code
The columns displayed in web page are Job_title, Company_name and Applied_date
This page is displyed well, bu without column nmes at the top. I am trying to get column names from cursor in order to have ORDER BY <pi_sort_col>
can someone help how i can get those column names:Job_title, Company_name and Applied_date
User will be able to click on column and sort
Thank in advance .I appreciate any help

Hi Francisco
Here is my code
CREATE OR REPLACE PACKAGE BODY cc_web_application_list
IS
TYPE COL_NAME_LIST IS TABLE OF VARCHAR2(100)
     INDEX BY BINARY_INTEGER;
TYPE COL_ORDER_LIST IS TABLE OF VARCHAR2(30)
     INDEX BY BINARY_INTEGER;
col_name_t col_name_list;
col_order_t col_order_list;
procedure my_application_list
     (pi_resume_num     in varchar2 default null
     ,pi_sort_col     in varchar2 default null
     ,pi_page_no     in varchar2 default null
     ,pi_action     in varchar2 default null
     ,pi_msg          in varchar2 default null
is
l_my_page_no      PLS_INTEGER :=     TO_NUMBER(nvl(pi_page_no,1));
l_js_name          gam_user.username%TYPE;
l_js_first_name          gam_user.first_name%TYPE;
l_cnt                PLS_INTEGER := 0;
l_scr_lines      PLS_INTEGER := 0;
l_curline           PLS_INTEGER;
l_jobs_applied           PLS_INTEGER;
l_total_rec      PLS_INTEGER;
l_total_pages      PLS_INTEGER;
l_pos               PLS_INTEGER;
l_first               PLS_INTEGER :=0;
last                PLS_INTEGER :=0;
l_lines           PLS_INTEGER := 10;
col_name      VARCHAR2(100) := col_name_t(3) ;
col_order           VARCHAR2(30) := 'DESC';
str                VARCHAR2(2000);
TYPE display_rec IS TABLE OF VARCHAR2(500) INDEX BY BINARY_INTEGER;
display           display_rec;
TYPE page_table_type IS TABLE OF PLS_INTEGER INDEX BY BINARY_INTEGER;
page_number          page_table_type;
CURSOR cur_job IS
     SELECT      jtl.JOB_TITLE job_title
          ,jtl.COMPANY_NAME company_name
          ,a.APPLY_DATE apply_date
          ,a.lang
          ,a.job_id
     FROM job_tl jtl, applied_for_job a, gateway gt
     WHERE a.job_seeker_id=app.job_Seeker
     AND a.job_id=jtl.job_id
     AND a.lang=jtl.lang
     AND a.gateway=gt.gateway
     ORDER BY a.apply_date;
This decode is a problem
          decode(col_order,'ASC'
               ,decode(col_name
               ,col_name_t(1), jtl.job_title
               ,col_name_t(2), jtl.company_name
               ,col_name_t(3), TO_CHAR(a.apply_date, 'YYYYMMDDhh24miss')
               ,a.apply_date)
               ) ASC
          ,decode(col_order,'DESC'
               ,decode(col_name
               ,col_name_t(1), jtl.job_title
               ,col_name_t(2), jtl.company_name
               ,col_name_t(3), TO_CHAR(a.apply_date, 'YYYYMMDDhh24miss')
               ,a.apply_date)
               ) DESC
          ,a.apply_date
TYPE rec_one IS TABLE OF cur_job%ROWTYPE INDEX BY BINARY_INTEGER;
r               rec_one;
BEGIN
BEGIN
SELECT username,first_name
INTO l_js_name,l_js_first_name
FROM gam_user
WHERE user_id = App.job_seeker;
EXCEPTION
WHEN OTHERS THEN NULL;
END;
Cc_Pkg_Elements.p_page_top_job_seeker(
'Personal Job List'
,REPLACE(Txt_Proc_My_Joblist.title_job_list
     ,'##first_name##',l_js_first_name),'N' ,TRUE ,'Pxx');
----- get numer of records returned by query
SELECT COUNT(1)
INTO l_total_rec
FROM     job_tl jtl,applied_for_job a
     ,gateway gt
WHERE a.job_id = jtl.job_id
AND     a.job_seeker_id     = App.job_seeker
AND     a.gateway     = gt.gateway ;
------get number of pages
l_total_pages:=CEIL (l_total_rec/l_lines);
l_jobs_applied := 0;
col_name := pi_sort_col;
col_order := pi_sort_col;
--get first positions
l_first := (nvl(l_my_page_no,1) - 1) * l_lines + 1;
FOR rec IN cur_job LOOP
     l_cnt := l_cnt + 1;
     EXIT WHEN l_cnt > l_first + l_lines - 1;
     IF l_cnt >= l_first THEN
          l_scr_lines := l_scr_lines + 1;
          r(l_scr_lines) := rec;          --assign counter from loop to r index
          IF rec.apply_date IS NOT NULL THEN
          l_jobs_applied := l_jobs_applied + 1;
          END IF;
     END IF;
END LOOP;
htp.p('<FORM ACTION="'||App.gateway||'8.my_application_list" METHOD="post">');
htp.p('<table align="center">');
htp.p('<tr><td>');
IF r.COUNT = 0 THEN
     Web_Pkg_Elements.doc_msg(Txt_Proc_My_Joblist.no_jobs);
END IF;
htp.p('</td></tr>');
htp.p('</table>');
--table_heading(col_name ,col_order );
htp.p('<table align=center>');
htp.p('<tr align="center"><td>');
FOR i IN 1..l_total_pages LOOP
     page_number(i) := i;
     IF page_number(i) = l_total_pages THEN
          htp.p('');
||'');
          Web_Pkg_Elements.doc_val_small(page_number(i)||'</A>');
     ELSE
     htp.p('');
|'||'');
     Web_Pkg_Elements.doc_val_small(page_number(i)||' |'||'</A>');
     END IF;
END LOOP;
htp.p('</td></tr>');
htp.p('</table>');
htp.p('<table align=center>');
FOR l_curline IN 1..l_scr_lines LOOP
     display(1) := NVL(r(l_curline).job_title, '<br>');
     display(2) := NVL(r(l_curline).company_name, '<br>');
     display(3) := NVL(Cc_Pkg_Nls.date2char(r(l_curline).apply_date, App.date_format), '<br>');
     IF MOD(l_curline, 2) = 0 THEN
          Cc_Pkg_Elements.tr_even;
     ELSE
          Cc_Pkg_Elements.tr_odd;
     END IF;
     htp.p('<td>');
     htp.p('');
     Web_Pkg_Elements.doc_val(display(1)||'');
     htp.p('</td>');
     htp.p('<td>');
     Web_Pkg_Elements.doc_val(display(2));
     htp.p('</td>');
     htp.p('     <td>');
     Web_Pkg_Elements.doc_val(display(3));
     htp.p('     </td>');
htp.p('</tr>');
END LOOP;
htp.p('</TABLE>');
htp.p('<TABLE width="88%" BORDER="0" CELLPADDING="0" CELLSPACING="0"
               align="center">');
htp.p('<tr valign=bottom>');
htp.p('<TD colspan=2 align=right>');
IF l_my_page_no > 1 THEN
     htp.p('<P>'||'<IMG SRC="'||App.image||'prev.gif" ALT="'
     ||Txt_Proc_My_Joblist.prev
     ||'"'     ||' HEIGHT=20 BORDER=0 ALIGN=bottom '
     ||'hspace=2>');
END IF;
IF l_my_page_no < CEIL (l_total_rec/l_lines) THEN
     htp.p(' <a href="'||
     web_pkg_elements.link$$(App.gateway||'8.my_application_list?'
     ||'pi_sort_col='||Web_Pkg_Elements.replace_in_url(pi_sort_col)
     ||'&pi_msg=&pi_page_no='||TO_CHAR(l_my_page_no + 1)
     ||">'||'<IMG SRC="'||App.image||'next.gif" ALT="'
     ||Txt_Proc_My_Joblist.NEXT
     ||'"' ||' HEIGHT=20 BORDER=0 ALIGN=bottom '
     ||'hspace=2></a>');
END IF;
htp.p('</TD>');
htp.p('</TR>');
htp.p('     </TABLE>');
htp.formHidden('pi_sort_col', pi_sort_col);
htp.formHidden('pi_page_no', pi_page_no);
htp.p('</FORM>');
END my_application_list;
END ; --cc_pkg_application_list

Why do I get a class conflict between the Prepare SQL.vi and the Get Column Name.vi with the SQL Toolkit compatibility vis from the Database Connectivity Toolkit?

I have done extensive programming with the SQL Toolkit with LabVIEW versions through 6.1. My customer now wants to upgrade to Windows 7, so I am trying to upgrade to LabVIEW 2009 (my latest purchased version) using the Database Connectivity Toolkit, and the SQL Toolkit Compatibility vis. Everything seemed to be going okay with the higher level SQL operations, but I ran into trouble with the Get Column Name.vi.
The pictures below show the problem. The original SQL Toolkit connected the Prepare SQL.vi with the Get Column Name.vi with a cluster of two references, one for connection, and one for sql. The new compatibility vis have a class conflict in the wire because the Prepare SQL.vi contains a cluster with connection, and command references, but the Get Column Name.vi expects a cluster with connection and recordset references.
How do I resolve this conflict?
Thank You.
Dan

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I'm not sure why it worked before. Maybe the execute was hidden inside the prep VI or maybe you can get the column names out of the command object before execution. In general, I would recommend considering switching to the newer VIs.
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Don't have DD on the wall anymore....

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TEXT
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Hi All
Is there a way I can get column name where a particular cell is: (In excel spreadsheet)
Ex: If I have column number 2: I should get "C" ( given col numbers are 0 based).
Please let me know.
Thanks
bib

It's not as easy as it might seem, since the letter sequence system is not compatible with common numeric sequence system.
See here:
[Java, POI - Converting number to Excel columns letter names|http://ondra.zizka.cz/stranky/programovani/java/converting_number_to_excel_column_letters_name.texy]

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use [mydatabase]
select * from InvNum inum
left join _btblInvoiceLines ilin
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left join stkitem s
on ilin.istockcodeid = s.stocklink where InvNumber = 'IVQ0834' or InvNumber = 'IVQ0835'
I need to get out the column names in a VB program in the same order they would appear in the SQL query above...
I want to use something like:
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If you execute the query in your program using the SqlDataReader.ExecuteReader method, the column names will be available via the GetName method of the returned reader. But note that your query may return multiple columns with the same name.
Dim reader As SqlDataReader = command.ExecuteReader()
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Thanks.
Mithun

Hello Mithun
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How to get column names as value in the target table ?

Hello All,
I want your help to solve my problem. Any suggestions are welcomed.
Problem - I have source data in Microsoft Excel in following format,
Ids q12 q13 q14
10001 1 1 2
10002 2 4 1
In my target table , which is in Oracle i want data in following format,
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10001 q12 1
10001 q13 1
10001 q14 2
10002 q12 2
10002 q13 4
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In table i have q12, q13, q14 as column names, Now i want to fill q12, q13,
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Thanks in Advance.
AC

1. Create a staging table with 4 columns. Ids,q12,q13 and q14
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3. Load the Excel after converting into CSV using SQLLDR into the staging table.
4. Then move the data from staging to main as below
insert into main(ids,question,answer)
(select ids,'q12',q12 from table1
union all
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union all
select ids,'q14',q14 from table1)There might be someother easier way to achieve this. But i dont think you can use SQLLDR to load the data denormalized like you have mentioned. But you can write a procedure which reads the file using UTL_FILE and insert into the table.
Message was edited by:
Mohana Kumari

Using Column Name in a Second Table

I have two tables in a sheet, Data and Report. Data contains a column named Hours. How can I write a sum function in the Report table that sums the values in the Hours column in Data? I'd like to use a named reference instead of a row/column letter/number range for when the Hours column gets longer.

David Benman1 wrote:
Thanks. I tried what you said, but initially it didn't work. I realized I needed to make the top row a header row, but that leads to a new question. All my columns now can be reference by name except the first column. Is there anything special I need to do to the first column? If the first column is "Hours", then when I type in "Hours" in my formula, the spreadsheet doesn't recognize it as a column name.
Yes, you must read the User Guide which explains :
Yvan KOENIG (VALLAURIS, France) 2 septembre 2010 12:06:03

Getting Column names (header) of a table dynamically

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