An associative array in PL/SQL: key = varchar2, value = varray (varchar2)

Similar Questions

• Associative array of index files by varchar2 - PLS 00382

  I have a SQL anonymous block that creates a report. At the end of each section, I need to summarize the data by "renting". The list of locations is finished (approx. 15 in a table) and not all sections will have data for each location, but I want the locations to order the same so I thought I'd use an associative array to store summary data. But when I try to initialize the associative array (I simply put the slots in the array in the "correct" order) I receive PLS-00382 expression is of the wrong type.
  
  Here is the code (the lines where the error occurs are in bold):
  
  TYPE summary_data () IS RENDERING
  Summary1 NUMBER,
  NUMBER of summary2
  NUMBER of summary3
  );
  
  Summ_arr TYPE IS TABLE of summary_data INDEX OF VARCHAR2 (5);
  
  location_summary summ_arr;
  
  aLoc VARCHAR2 (5);
  
  PROCEDURE init_summ (aSummArr IN OUT summ_arr) IS
  BEGIN
  aSummArr.Delete;
  
  BEGIN
  FOR in aLoc (select name - name is VARCHAR2 (5))
  table
  control key)
  LOOP
  aSummArr (aLoc) .summary_1: = 0;
  aSummArr (aLoc) .summary_2: = 0;
  aSummArr (aLoc) .summary_3: = 0;
  END LOOP;
  EXCEPTION
  -exception handling
  END;
  
  END;
  
  If this is not allowed, or I do something wrong? I tried substituting:
  
  Summ_arr TYPE IS TABLE of summary_data INDEX OF VARCHAR2 (5);
  
  with
  
  Summ_arr TYPE IS TABLE of summary_data INDEX table.key%TYPE;
  
  Nothing helps.
  
  Thanks in advance for your help with this.
  
  ANNUAL GENERAL MEETING

  ALOC is a record variable. You need to refrence the column in the file said. So, something like this:

  aSummArr(aLoc.name).summary_1 := 0;
  

  Cheers, APC

• need help in the associative arrays indexed by varchar

  Hi, I wanted to fill an associative array that is indexed by varchar, but I'm confused by incrementing the pointer so that the next lines gets inserted into the next available place.
  sample data:
  type ty_tb_tab_acc is record (account varchar2 (30));
  type ty_tb_indx_acct is table of index ty_tb_tab_acc by varchar2 (35);
  
  cursor sampls_cursor is
  Select an account in sam_tab where the clause goes in here
  
  say that my cursor returns 20 accounts. now, I want these 20 accounts will be inserted in the table associative ty_tb_indx_acct
  How should I buckle and incrment table?
  
  Please share your ideas

  user13710379 wrote:
  If this isn't the case, associatve tables approach I should use.
  My requirement:
  1.i will be 2 sliders who choose (type varchar2) account number according to diff where clause.
  2. then, I need to compare these two cusrsor account number and fill out a folder or a collection, if the two account numbers are the same.

  This must be done using SQL. Not the tables or collections or associative arrays.

  SQL is the MOST powerful language, that you have in the Oracle RDBMS. It is faster than PL/SQL, when it comes to crunch data. It is more scalable.

  So why then pull data SQL in PL/SQL (expensive) memory? And then shoot some more SQL data in memory of PL/SQL (expensive)? And then use PL/SQL loop processing to compare the two sets of data?

  SQL can do that very quickly and very efficiently - as it was designed for this specific purpose.

  See the JOIN, INTERSECT , and LESS SQL operations to compare data sets.

• Associative array question

  Hi all
  
  I searched through this forum trying to find I need information about the associative arrays with an index of varchar2 without success. What I'm looking for is a way to get the index or the 'key' values in the table without knowing what they are. Which means, I wouldn't know the index value in the design of the table, but would be able to use the values during execution. For those who are familiar with Java, it would be like calling the method keySet() of a map object.
  
  So if I have a table of TYPE COLUMN_ARRAY IS TABLE OF VARCHAR2 (4000) INDEX OF VARCHAR2 (100) is it possible to dynamically get the index values without knowing what they are?
  
  Any help is appreciated.
  
  Thank you

  Hello

  declare
    i Number := 1;
  begin
  ...
  i := Array_List.Next(i);
  ...
  

  Kind regards

  Christian Balz

• Associative arrays... items in the index

  I can control the index of an associative array like that...
  

   TYPE aat_id IS TABLE OF PLS_INTEGER INDEX BY PLS_INTEGER;
    aa_ids aat_id;
  
  BEGIN
  
       aa_ids(1) := 3;
       aa_ids(2) := 8;
       aa_ids(2) := 10;
       
  aa_ids.delete(2);
  
  dbms_output.put_line(aa_ids.count);
  
  END;

  How can I control the index in the statement of collection in bulk as follows... so that I can delete records using this index
  

   SELECT decode(mod(rownum,2),1,1,2), object_name BULK COLLECT INTO aa_recs
       FROM   all_objects WHERE  ROWNUM <= 6;

  Thank you
  HESH.

  HESH wrote:

  but I have to play with the collected values, I want to delete the values in bulk without a loop through the list there at - it a trick possible to do this?

  Using not PL/SQL and bays of PL/SQL at all - just using simple native SQL.

  Before bulk collection and construction of an associative array, for the use of the values in table for future SQL operations, I rather to store the collection of values in a TWG (global temporary table) instead. A TWG can be indexed - and can thus provide much better access to the data as an associative array. He played better. It can be used via SQL, native mode.

  The best place for the data is in the database. Not in the PL/SQL layer. This means that in SQL tables and not in PL/SQL tables or collections.

  There are very few situations in PL/SQL, which require the use of associative arrays. If few, the majority of the PL/SQL code using associative arrays, IMO do badly. And what you've posted so far, I do not see a specific requirement for associative arrays.

  So be sure you use the correct feature - and make sure that it is also well put to use in your code.

  PS. HESH is a strange name. I'm used to HESH meaning High Explosive Squash Head (used for the filming of shielding). :-)

• What is the preferred means of data transmission as a type of record between the nested table of pl/sql program or an associative array

  What is the preferred means of data transmission in the associative array of the nested table record vs

  Choose between Nested Tables and associative arrays

  The two nested tables and associative arrays (formerly index - by tables) use similar index notation, but they have different characteristics when it comes to persistence and ease of passing parameters.

  Nested tables can be stored in a column of data, but can of associative arrays. Nested tables can simplify the SQL operations where you would normally join a single-column table with a larger table.

  Associative arrays are appropriate for relatively small lookup tables where the collection can be constructed in memory whenever a procedure is called or a package is initialized. They are good for the collection of the information volume is unknown beforehand, because there is no fixed limit on their size. Their index values are more flexible, as associative array indices can be negative, can be no sequential and can use values of string instead of numbers.

  PL/SQL automatically converts between the bays of the host and the associative arrays that use values of digital keys. The most effective way to move the collections to and from the database server is to implement data values in associative arrays, and then use these associative arrays with erections in bulk (the FORALL statement or BULK COLLECT clause).

  With the help of documents and Collections of PL/SQL

  Read this:

  How to pass the record set as a parameter of the procedure.

  https://community.Oracle.com/thread/2375173?TSTART=0

• SQL on an associative array

  Oracle 11.2.0.2.0
  
  Using UTL_FILE, I can read the text file inot successfully in the associative array.
  Now, I need to perform an advanced treatment of the values that is easily done with SQL, but for this the values should be in nested, no associative table. Is it possible a secret in another?
  Thank you.
  

  declare
    infile utl_file.file_type;
    v_line varchar2(100);
    v_max varchar2(100);
    i integer:=1;
    type t_lines is table of varchar2(100) index by binary_integer;
    tab_lines t_lines; 
  begin
    begin
    inFile := utl_file.fopen('ORADUMP','table.dat','R');
      loop
        utl_file.get_line(infile,v_line);
        tab_lines(i) := v_line;
        i:=i+1;
        dbms_output.put_line(v_line);
      end loop;
    exception
      when no_data_found then utl_file.fclose(infile);
      when others then
        dbms_output.put_line(dbms_utility.format_error_backtrace);
        dbms_output.put_line('error ' || sqlcode || ' '||sqlerrm);
    end;
  --How to do something like this? 
  --select max(column_value) into v_max from table(tab_lines);
  end;
  /

  P.S. I am aware of the external tables and other means of data processing, but what I basically need is the ability to make SQL on associative arrays.

  Nagornyi wrote:
  I'd use a table nested from the beginning, but how to fill only one value at a time, during the reading of the file? Sorry, I didn't do well the answer in these examples...

  Basic idea

  declare
     l_nested_table    sys.odcivarchar2list   default sys.odcivarchar2list();
  begin
     l_nested_table.extend;
     l_nested_table(l_nested_table.count) := some_value;
  end;
  /
  

• combine several pl/sql in a single associative array

  Hello
  I use oracle 10g, can anyone suggest me how to combine several pl/sql in a single Bay.
  
  ex:
  

  TYPE t_array IS TABLE OF VARCHAR2 (100)
        INDEX BY BINARY_INTEGER;
  
     v_subnasp        pk_rules.t_array;
     v_product        pk_rules.t_array;
     v_order_type   pk_rules.t_array;
     v_combine       pk_rules.t_array;

  I want to combine the data in v_subnasp, v_product, v_order_type to v_combine

  DeepakDevarapalli wrote:
  Sorry, I think that my question is not clear. can I move data from 3 tables on a Bay. and what is the best way. I found a way using loops.

  If you declare an associative array type - loop is pretty much your only option. If you declare the nested table type, you can use operatots of type multiset:

  DECLARE
     TYPE t_array IS TABLE OF VARCHAR2(100);
     v_subnasp        t_array := t_array(1);
     v_product        t_array := t_array(2);
     v_order_type     t_array := t_array(3);
     v_combine        t_array;
  BEGIN
      v_combine := v_subnasp multiset union all v_product multiset union all v_order_type;
      for i in 1..v_combine.count loop
        dbms_output.put_line('Element ' || i || ' = ' || v_combine(i));
      end loop;
  END;
  /
  Element 1 = 1
  Element 2 = 2
  Element 3 = 3
  
  PL/SQL procedure successfully completed.
  
  SQL> 
  

  SY.

  Published by: Solomon Yakobson, December 14, 2009 11:19

• Error in the pl/sql block using associative arrays

  Hello
  I tried the following block of code using associative arrays.
  

  DECLARE
     TYPE NumTab IS TABLE OF NUMBER INDEX BY BINARY_INTEGER;
     CURSOR c1 IS SELECT empno FROM emp;
     empnos NumTab;
     rows   NATURAL := 10;
  BEGIN
     OPEN c1;
     FOR i in empnos.first..empnos.last LOOP
        /* The following statement fetches 10 rows (or less). */
        FETCH c1 BULK COLLECT INTO empnos LIMIT rows;
        EXIT WHEN c1%NOTFOUND;
        DBMS_OUTPUT.PUT_LINE ( empnos.next(i)); 
     END LOOP;
     CLOSE c1;
  END;

  and the error is

  DECLARE
  *
  ERROR at line 1:
  ORA-06502: PL/SQL: numeric or value error
  ORA-06512: at line 8

  could you please let me know where I am going wrong
  and please guide me where we use these associative arrays.
  
  Thank you

  Try this

  DECLARE
     TYPE NumTab IS TABLE OF emp%rowtype INDEX BY PLS_INTEGER;
     CURSOR c1 IS SELECT * FROM emp;
     empnos NumTab;
     rows   INTEGER := 10;
  BEGIN
    OPEN C1;
    LOOP
      FETCH c1 BULK COLLECT INTO empnos LIMIT rows;
      EXIT WHEN c1%NOTFOUND;
  
      FOR i IN 1..empnos.count
      LOOP
        DBMS_OUTPUT.PUT_LINE(empnos(i).empno || '/' || empnos(i).ename);
      END LOOP;
    END LOOP;
  END;
  

• Index associative arrays in varchar2

  Hi all
  It seems that associative arrays are indexes by varchar2
  automatically sorted by index value.
  Please run this test:

  declare 
  
    TYPE TEST_ARRAY IS TABLE OF VARCHAR2(10) INDEX BY VARCHAR2(10);
    aTest TEST_ARRAY;
    
    cIndex VARCHAR2(10);
  begin
    -- Test here
    aTest('X') := 'X';
    aTest('A') := 'A';
    aTest('C') := 'C';
    aTest('Z') := 'Z';
    aTest('C') := 'C';
    aTest('B') := 'B';
    aTest('AB') := 'AB';
    aTest('12') := '12';
    
    cIndex := aTest.FIRST;
    while cIndex IS NOT NULL LOOP
            dbms_output.put_line('aTest('||cIndex||')='||aTest(cIndex)); 
            cIndex := aTest.NEXT( cIndex );
    END LOOP;
     
  END;

  Now, the questions are:
  1. are you aware of the documentation of Oracle that describe the behavior above?
  2. are you aware of no example where associative arrays index in varchar2
  is not sorted by its index? (Finally, except changing the NLS_SORT setting)
  3. is it safe to use this feature of "sort"?
  
  Thank you
  Thomas

  1. are you aware of the documentation of Oracle that describe the behavior above?

  " Associative arrays: ' indexes are stored in the sort order, not order of creation '."

• Check if a value is in an associative array?

  Hello
  I am writing a process to plug into an existing infrastructure. I have an associative array of data (that I can't change the definition of) which is defined as:
  type vc_arr2 is table of the varchar2 (32767) index directory.
  
  An example of a data set can be:
  

  Key   Text
  1 => Apple
  2 => Banana
  3 => Pear
  4 => Plum
  5 => Grape
  etc etc

  Now I need to be able to see information indicating if a specific text value appears in the values, that is to say "is"Bananas"in the table? Now of course I could do it by writing a procedure loop over all the elements in order but there at - it do something built that? There are the obvious overhead (potentially) to loop through each element for each item, I'm looking for - I hope that there is something built in which more effective (IE, 'index' values or something like that).
  As far as I know, ARRAY. Exists() works on the key and not the value, and MEMBER OF cannot be used with associative arrays.
  I'm not interested in what the key is for a given value (and I realize, it may be more than one key mapping to a given value), all I want is just if the element exists in the table.
  
  Any help or suggestions would be greatly appreciated!

  No, you will need to loop through each of them, as your index finger is not on the text.

  No reason to use an associative array in the first place? Why not use database and SQL tables? Oracle is good at those. ;)

• Associative array in Oracle procedure problem

  Hello
  
  I searched through the internet and this forum and have not been able to solve a problem using the associative array of values in an IN clause. Everything I read says that I can not use the associative array directly in the SQL statement. I have to convert it to a table and then I can use it. Unfortunately, I get a ' ORA-21700: object does not exist or is marked for deletion "error when trying to access the table, I filled the table. Please note that I checked the table is actually filled during the loop. I capture the error when you are referencing in the SELECT statement.
  
  I stated the following in the ARCHIVE package specification:
  
  TYPE RSType IS REF CURSOR;
  TYPE integer_aat IS TABLE OF INTEGER INDEX BY PLS_INTEGER;
  Integer_table TYPE TABLE IS OF INTEGER;
  
  
  The procedure is the following:
  
  PROCEDURE SEL_SEARCH_RESULTS (v_term IN VARCHAR2,
  v_categories IN ARCHIVE.integer_aat,
  RS ON RSType)
  AS
  / * END: Returns the results for the category and key word provided
  VARIABLES:
  v_categories = array of categories of documents
  v_term = keyword entered
  RS = game results
  */
  tbl_cat ARCHIVE.integer_table: = ARCHIVE.integer_table ();
  
  BEGIN
  
  BECAUSE me in 1... v_categories. COUNTY
  LOOP
  tbl_cat. EXTEND (1);
  tbl_cat (i): = v_categories (i);
  END LOOP;
  
  OPEN FOR RS
  SELECT A.ID,
  B.CATEGORY,
  A.FILENAME,
  A.DISPLAY_NAME,
  A.COMMENTS
  OF TBL_ARCHIVE_DOCUMENTS,.
  B TBL_ARCHIVE_DOC_CAT,
  C TBL_ARCHIVE_DOC_KEYWORDS
  WHERE A.ID = B.ID
  AND A.ID = C.ID
  AND B.CATEGORY in (SELECT * FROM TABLE (tbl_cat))
  AND C.KEYWORD = v_term
  ORDER BY A.ID;
  END SEL_SEARCH_RESULTS;
  
  Any help would be greatly appreciated and thanks in advance.
  
  Matt

  905707 wrote:
  Thanks for the quick response. I looked at the example suggest you and made the following changes. Now, I get an invalid 'Data Type' error on the "column_value SELECT FROM TABLE (CAST (tbl_cat AS tbl_integer))' statement. I must be missing something simple and I can't put my finger on it.

  You did not create a SQL type as I said. tbl_integer is still declared in the PLSQL code you have posted.

  Reread my initial response and look at the example I posted (the very first thing that is done is to create a SQL type).

• How to get the 'index' of an associative array?

  Hello
  
  Is it possible to get the 'index' of an associative array?
  
  I saw say about 3000 ID.
  
  Corresponding to each of these identifiers, thre is a 'key' (the 'key' can repeat for different ID)... tell key1, key2, key3.
  
  Now, I want to show the top of page 8 keys ().
  
  Could you please tell me how can I do this?
  
  Concerning

  Don't know what you are exactly looking for.

  To get the index of an array of assotiative you should do something like

  SQL> declare
     type arr is table of number
                    index by varchar2 (5);
  
     var   arr;
     idx   varchar2 (5);
  begin
     --  fill the array
     for id in 1 .. 12
     loop
        var ('key' || to_char (id, 'fm00')) := id;
     end loop;
  
  --  get the keys
     idx := var.first;
     dbms_output.put_line (idx);
  
     while idx is not null
     loop
        idx := var.next (idx);
        dbms_output.put_line (idx);
     end loop;
  end;
  /
  key01
  key02
  key03
  key04
  key05
  key06
  key07
  key08
  key09
  key10
  key11
  key12
  PL/SQL procedure successfully completed.
  

• Using associative arrays in query

  Hi all

  Please see my schedule. It works very well

  [CODE]

  DECLARE

  type mechanics_type_tab is table of index varchar2 (15) by varchar2 (15);

  l_mechanics_type mechanics_type_tab;

  L_BULLETIN t_tfo_wf_varchar_table:=t_tfo_wf_varchar_table();

  l_count pls_integer: = 0;

  BEGIN

  FOR I IN (select bulletin_id, mechancs_type_id

  of TFO_BULLETIN_PROMO_MECHANICS

  where mechancs_type_id is not null) LOOP

  l_count: = l_count + 1;

  l_mechanics_type (i.bulletin_id): = i.mechancs_type_id;

  l_mechanics_type (i.mechancs_type_id): = i.mechancs_type_id;

  L_BULLETIN.extend;

  L_BULLETIN (l_count): = i.bulletin_id;

  END LOOP;

  FOR J IN (SELECT TABLE COLUMN_VALUE (L_BULLETIN)) LOOP - this will change

  DBMS_OUTPUT. Put_line ('COLUMN_VALUE =' | l_mechanics_type (J.COLUMN_VALUE));

  END LOOP;

  / * does not

  Insert into test_table (test1)

  SELECT values l_mechanics_type (COLUMN_VALUE) OF TABLE (L_BULLETIN); */

  END;

  [/ CODE]

  instead of the code below:

  FOR J IN (SELECT TABLE COLUMN_VALUE (L_BULLETIN)) LOOP - this will change

  DBMS_OUTPUT. Put_line ('COLUMN_VALUE =' | l_mechanics_type (J.COLUMN_VALUE));

  END LOOP;

  When I did as below

  [CODE]

  insert into test_table (test1) to

  SELECT values l_mechanics_type (COLUMN_VALUE) OF TABLE (L_BULLETIN);

  [/ CODE]

  It does not work. Why it does not work.

  Please note that in the real-world scenario, there are several fields to insert for test_table and test1 is one of them.

  Just because the associative arrays are not supported in SQL before ORACLE 12 c.

  HTH

• Associative array as a type of database

  As it is very well create an associative array inside a stored procedure:

    type urltype  is table of varchar2(32767) index by varchar2(30);
  
  

  Can it be created as a type of database at the level of the schema?

  Brian.McGinity wrote:

  As it is very well create an associative array inside a stored procedure:

  1. type urltype is the table of index varchar2 (32767) by varchar2 (30);

  Can it be created as a type of database at the level of the schema?

  Non - associative arrays are a function of PL/SQL.

  See table 5-1 in the doc of the PL/SQL language for a description of each type of collection and where (pl/sql, sql, etc.) they can be used.

  http://docs.Oracle.com/CD/E11882_01/AppDev.112/e25519/composites.htm#CHDBHJEI