How to find the names of tables that have more than 100 columns

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• How to find the name of a column in a table

  Hi all
  
  I have a Table that contains approximately 100 columns.
  
  
  I need to find the column name, to find in specific columns containing data like 'abc '.
  
  Ex: I have a table like temp_table_name
  the columns are col1, col2, col3, col4, col5, col6, col7, col8,.... col99
  I'm looking for with data specific like 'abc '.
  
  Need to find the name of the table column that contains data of 'abc '.
  
  Please suggest me. How to find in a single query... :-)
  
  Actually I'm looking through a column of the table as below
  Select count (*) in the temp_table_name where col1 = 'abc '.
  
  FOR I IN 1.20 LOOP
  ln_num_of_rows: = 0;
  lv_column_name_search: = "col" | I have;
  
  lv_sql: = ' select count (*) in the temp_table_name where ' | lv_column_name_search | "= abc";
  
  EXECUTE IMMEDIATE lv_sql INTO ln_num_of_rows;
  
  IF ln_num_of_rows > 0
  -column found in lv_column_name_search
  EXIT;
  END IF;
  END LOOP;
  
  But I'm gettig performance problem.
  
  How can I do this in any other alternative way? could you suggest any way possible as soon as POSSIBLE.

  It's probably never going to be effective - realistic, you have to scan completes the picture.

  You could probably improve a little things by doing something like

  SELECT DISTINCT column_name
    FROM (
      SELECT (CASE WHEN col1 = 'abc' THEN 'col1'
                  WHEN col2 = 'abc' THEN 'col2'
                  WHEN col3 = 'abc' THEN 'col3'
                  ...
                  WHEN col20 = 'abc' THEN 'col20'
                  ELSE NULL
                  END) column_name
        FROM table_name
      WHERE col1 = 'abc'
          OR col2 = 'abc'
          ...
          OR col20 = 'abc'
    )
  

  but it's never going to be incredibly fast.

  Justin

• How to find the name that differ just a little

  Hi all

  I wonder if is a short distance to find the name that differ for 2/3 characters;

  Example, I have a table that contains 1 varchar2 column.

  Martello

  point

  Pistola

  cemmello

  Cammelli

  I need to write a query like:

  Select * from table where colum = point

  in the result set, I want to

  point

  cemmello

  Cammelli

  Thank you

  F.

  Hello francy77

  In fact, it is not possible. There is a SQL "soundex" function, which "returns a string containing the phonetic representation of the char . This function allows you to compare the words that are spelled differently, but sound as well in English. »

  Example: Smith could be written as "SMYTHE".

  Try this:

  SELECT first_name

  FROM (SELECT 'Smith' AS the name OF DOUBLE UNION ALL

  SELECT 'Sophie' AS the name OF THE DOUBLE)

  WHERE SOUNDEX (first_name) = SOUNDEX ('Smythe')

  ;

  You get two records...

  But if you have a specific logic, then you must create a function and he set what text - what you want text input.

  Is it useful or the solution for you?

• How to find the name of the table where the paricular column is common to all the tables...

  Hi all
  
  any help please...
  
  I have a lot of tables in the diagram
  
  Select * from tab; show all tables...
  
  Now, there is a single table called has columns as name like this, dept, empno, joindate, sal...
  now the description column in table present in so many other tables in the schema above...
  
  How can I know the names of tables where this 'Description' column shows.
  
  Note: I use the 10 g version and I do not have DBA privilege on the diagram...
  
  Thanks in advance
  ASP.

  Are you logged in as owner of these tables? Otherwise (and it seems that you're not), you have privileges on these table? If you do, use:

  SELECT  OWNER,
          TABLE_NAME
    FROM  ALL_TAB_COLUMNS
    WHERE COLUMN_NAME = 'DESIGNATION'
  / 
  

  If you don't have privileges, but you can choose from DBA_TAB_COLUMNS, use:

  SELECT  OWNER,
          TABLE_NAME
    FROM  DBA_TAB_COLUMNS
    WHERE COLUMN_NAME = 'DESIGNATION'
  / 
  

  Otherwise ask your DBA to run it.

  SY.

• How to find the name of the column in the tables

  Hello..

  Suppose that there are thousands of table in the database. Out of them a few tables contain the column name as 'ENTRY_BY '.

  I want to know the tables that have columns like "ENTRY_BY".

  ... Please suggest for this query.

  all_tab_cols

  Select * from all_tab_cols

  where column_name like ' % INPUT % ';

  Post edited by: Rajavignesh

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  Hi all..
  
  Is it possible to find the name of the procedure or the calling package?
  
  I mean.. If proc_1 calls proc_2 how can I find in proc_2 proc_1 call?
  
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