plsql - Oracle cusor return result and get value by dynamic column name -

-

as tittle, want value column name paramater in cursor result.

i not find answer after searching long time,could give help?

--common usage begin     rowvalue in (select code, name tablea)     loop      -- rowvalue.code  rowvalue.name     end loop; end   begin     rowvalue in (select * tablea)     loop         -- tableb keep column's names talbea         columnnames in (select name tableb)         loop          -- want use like:  rowvalue.(columnnames.name)         end loop;     end loop; end

you can use dbms_sql, this:

declare   l_cursor                integer;   l_column_count          integer;   l_column_descriptions   sys.dbms_sql.desc_tab;   l_column_value          varchar2 (4000);   l_status                integer;    type col_map_tab_type table of integer     index varchar2 (30);    col_map_tab             col_map_tab_type; begin   l_cursor   := sys.dbms_sql.open_cursor;    -- parse sql   sys.dbms_sql.parse (c => l_cursor, statement => 'select * dba_objects rownum <= 10', language_flag => sys.dbms_sql.native);    -- describe columns   sys.dbms_sql.describe_columns (c => l_cursor, col_cnt => l_column_count, desc_t => l_column_descriptions);    in 1 .. l_column_count loop     col_map_tab (l_column_descriptions (i).col_name)   := i;     dbms_sql.define_column (l_cursor,                             i,                             l_column_value,                             4000);   end loop;    l_status   := sys.dbms_sql.execute (l_cursor);    while (sys.dbms_sql.fetch_rows (l_cursor) > 0) loop     column_names in (select column_name                            dba_tab_columns                           table_name = 'dba_objects'                          ,    column_name 'o%') loop       dbms_sql.column_value (l_cursor, col_map_tab (column_names.column_name), l_column_value);       dbms_output.put_line (column_names.column_name || ' = ' || l_column_value);     end loop;   end loop;    sys.dbms_sql.close_cursor (l_cursor); end;

Comments

Post a Comment

Popular posts from this blog

html - Firefox flex bug applied to buttons? -

-
i'm trying apply flex button on firefox i'm having problem on chrome doesn't happens. this css: .button { display: inline-flex; align-items: center; } as can see in fiddle, "caret" word moved new line, happens if element <button> tag, <div> works expected. http://codepen.io/anon/pen/xblmgx is firefox bug or there css i'm missing? nevermind, looks "mr firefox" doesn't idea... <button> not implementable (by browsers) in pure css, bit of black box, perspective of css. means don't react in same way e.g. <div> would. this isn't specific flexbox -- e.g. don't render scrollbars if put "overflow:scroll" on button, , don't render table if put "display:table" on it. stepping further, isn't specific <button> . consider <fieldset> , <table> have special rendering behavior: data:text/html,<fieldset style="d...
Read more

html - Missing border-right in select on Firefox -

-
Image
when put select div width , padding-left, options have no border on right. more, happend if select have width 118px , parent have 15px of padding left! have idea, going on? my code: <!doctype html> <html> <head lang="en"> </head> <body> <div style="width: 1000px; padding-left: 15px;"> <select style="width: 118px;"> <option>a</option> <option>b</option> <option>c</option> </select> </div> </body> </html> and result: here plunker: click it happend on firefox on windows. tested on 40.0.2 version -webkit-box-sizing: border-box; -moz-box-sizing: border-box; -ms-box-sizing: border-box; box-sizing: border-box; source: https://stackoverflow.com/a/11390432/4431269 source of problem: https://bugzilla.mozilla.org/show_bug.cgi?id=924068 and use of google ! edit: (source of problem, explained) after rea...
Read more

python - build a suggestions list using fuzzywuzzy -

-
i building suggestion engine database. i'm using fuzzywuzzy module match user input string existing database shown below. if request.method == "get": display_dict = {} user_input = request.get["user_input"] # user input match_dict = {} food_items_obj = food_items.objects.all() # fetch objects table items in food_items_obj : match = fuzz.ratio(user_input.lower(),items.name.lower()) # try match user input existing names match_dict[match] = items.name # put 1 dictionary matched_dict = ordereddict(sorted(match_dict.items(),reverse = true)) # sort dictionary if max(matched_dict.keys()) == 100: # if exact match put in dict , return display_dict[100] = matched_dict[100] else : # if not found try best matching words.. ###########this part need help! ############# k,v in matched_dict.items(): if user_input in v : display_dict[k]...
Read more