Simplest way to get column names
i need to retrieve column names in a rowset, let me explain a bit;
i can simply retrieve a column name by using IColumnsInfo::GetColumsInfo, but the problem is when i use "AS" keyword in the select statement such like;
SELECT identification AS id FROM test_table_a
i see alias name of that column instead the internal column name.
as you can guess the qestion is; how can i get both alias and internal name at the same time and of course what is the *usual* way to get it.
thanks in advance
Getting 'real' column names from a table:
Code Snippet
SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = N'Products'
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Error 4101 Description:
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bibIt's not as easy as it might seem, since the letter sequence system is not compatible with common numeric sequence system.
See here:
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I need your Help My Friends...
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Could someone help me how to get column names in EJB3.0.
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here is the sample code i use.
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Here is a list of links to all SQL tutorials available on the Internet.
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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 helpHi 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 -
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