Need to insert test data in all the tables that were present in a schema

Hello

I use Oracle 9i.

10 tables were present in my current schema. All tables are not having all the records.

I need to insert test data in each table using a single procedure. (the table name is inparameter for the procedure)

For example, I test_emp, test_sal tables.

CREATE TABLE test_emp (ename varchar2 (40), number of sal);
CREATE TABLE test_sal (it NUMBER, rank NUMBER, will designate the NUMBER);

I need to insert some test data in these tables. I shouldn't use utl_file or sql * loader for this.

I tried below way.

-- Incomplete code

CREATE OR REPLACE PROCEDURE test_proc_insertdata(p_table_name IN VARCHAR2) IS

BEGIN

  --Selected all the column_names, data_type, data_length into a collection variable from user_tab_columns.

  SELECT u.column_name, u.data_type, u.data_length
  --BULK COLLECT INTO l_col_tab
    FROM user_tab_columns u
   WHERE u.table_name = p_table_name;

  -- generated the values using below statement
  
    SELECT decode(u.DATA_TYPE,'VARCHAR2',dbms_random.string('A', u.data_length),'NUMBER',TRUNC(dbms_random.value(1, 5000)),'DATE',SYSDATE) val_list
    -- INTO collection varaible
      FROM user_tab_columns u
     WHERE TABLE_NAME = p_table_name;  
   

END;

I am not able to transmit these values to the collection dynamically to the INSERT statement. I tried many ways, but I am not satisfied with the code I've written.

Please help me if you know a better idea.

Thank you
Suri

Suri wrote:
Hello

I use Oracle 9i.

10 tables were present in my current schema. All tables are not having all the records.

I need to insert test data in each table using a single procedure. (the table name is inparameter for the procedure)

For example, I test_emp, test_sal tables.

CREATE TABLE test_emp (ename varchar2 (40), number of sal);
CREATE TABLE test_sal (it NUMBER, rank NUMBER, will designate the NUMBER);

I need to insert some test data in these tables. I shouldn't use utl_file or sql * loader for this.

I tried below way.
-- Incomplete code

CREATE OR REPLACE PROCEDURE test_proc_insertdata(p_table_name IN VARCHAR2) IS

BEGIN

--Selected all the column_names, data_type, data_length into a collection variable from user_tab_columns.

SELECT u.column_name, u.data_type, u.data_length
--BULK COLLECT INTO l_col_tab
FROM user_tab_columns u
WHERE u.table_name = p_table_name;

-- generated the values using below statement

SELECT decode(u.DATA_TYPE,'VARCHAR2',dbms_random.string('A', u.data_length),'NUMBER',TRUNC(dbms_random.value(1, 5000)),'DATE',SYSDATE) val_list
-- INTO collection varaible
FROM user_tab_columns u
WHERE TABLE_NAME = p_table_name;  

END;
I am not able to transmit these values to the collection dynamically to the INSERT statement. I tried many ways, but I am not satisfied with the code I've written.

Please help me if you know a better idea.

Thank you
Suri

With some effort, you can write dynamic insert queries. Read the data dictionary views ALL_TABLES and ALL_TAB_COLUMNS to get the data you need. You may need to limit the list to the tables you specify to hardcode the names of the tables. You can read the views for the information of table and column that you need generate the insert column orders. It will be a lot of work and it might be easier to simply hardcode values. Dynamic SQL is difficult to debug and work with: (.) Something like this (untested and totally undebugged)

declare
  cursor v_tab_col(p_table_name) is select * from all_tab_columns where table_name = p_table_name;
  v_text varchar2(32767);
  v_table_name varchar2(30);
begin
  v_table_name := 'DUAL';
  --chr(10) is a newline for readability when debugging
  v_text := 'insert into '||v_table_name||chr(10)||'(';
  --loop to build column list
  for v_tab_rec in v_tab_col loop
    --add comma if not first item in list
    if v_tab_col%rowcount > 1 then
      v_text := v_text ||',';
    end if;
    v_text := v_text || v_tab_rec.column_name;
  end loop;
  v_text := v_text ||') values ('||
  --loop to build column values
  for v_tab_rec in v_tab_cur loop
    if (v_tab_rec.datatype = 'VARCHAR2') then
      --add comma if not first item in list
      if v_tab_col%rowcount > 1 then
        v_text := v_text ||',';
      end if;
      if v_tab_rec.datatype = 'NUMBER' then
       v_text := v_text || '9';
       elsif v_tab_rec.datatype = 'VARCHAR2' then
         v_text := v_text ||'X';
      end if;
  end loop;
  v_text := v_text || ')';
  execute immediate v_text;
end;

This code is not effective, but shows how to do what you described. You'll have to code for all data types you need and find a way to take into account the primary/foreign keys, yourself. I leave it to you to find a way to avoid selecting the data twice ;)
Good luck!

Published by: riedelme on July 24, 2012 13:58

Tags: Database

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