SQL on an associative array

Similar Questions

• 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;
  

• 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 difference between associative arrays and nested tables?

  Hello
  What is the difference between associative arrays and nested tables?
  
  nested tables cannot be indexed by other than pls_integer and unlike nested tables table associative cananot be declared at the schema level.
  
  is there any other difference set apart from the diff above 2?

  user13710379 wrote:
  What is the difference between associative arrays and nested tables?

  Name-value pairs (associative) against a list of values (table standard/nested table).

  nested tables cannot be indexed by other than pls_integer

  They are not "indexed" the way in which an associative array is indexed. A standard table is referenced by the position of the cell in the table. This position is essentially the offset of the memory of the cell from the start address of the table.

  Can not solve a cell in an associative array directly via a memory offset index. You place a cell reference value it by his 'name' (a search in the linked list/hash table).

  The following example shows the difference between the pairs of name / value and a list of core values.

  SQL> declare
    2          --// associative arrays are NAME-VALUE pairs
    3          type TArr1 is table of varchar2(10) index by pls_integer;
    4          type TArr2 is table of varchar2(10) index by varchar2(10);
    5
    6          arr1    TArr1;
    7          arr2    TArr2;
    8  begin
    9          arr1(100) := '1st entry';
   10          arr1(1) := '2nd entry';
   11          arr1(5) := '3rd entry';
   12
   13          arr2('john') := 'New York';
   14          arr2('jane') := 'Paris';
   15          arr2('jack') := 'London';
   16
   17  end;
   18  /
  
  PL/SQL procedure successfully completed.
  
  SQL>
  SQL>
  SQL> declare
    2          --// standard arrays are lists
    3          type TArr3 is table of varchar2(10);
    4          type TArr4 is table of number;
    5
    6          arr3    TArr3;
    7          arr4    TArr4;
    8  begin
    9          arr3 := new TArr3( '1st entry', '2nd entry', '3rd entry' );
   10
   11          arr4 := new TArr4( 100, 1, 5 );
   12  end;
   13  /
  
  PL/SQL procedure successfully completed.
  
  SQL> 
  

• 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

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

  I'm doing an associative array, where the key is a string and the value is an array of strings.
  
  I tried to declare it like this:
  
  PROCEDURE myProcedure IS
  tableau_donnees argument type is varray (200) of VARCHAR2 (20);
  Column TYPE IS an ARRAY OF tableau_donnees INDEX BY VARCHAR2 (20);
  my_collection columns; -collection of multi dimensional pl/sql
  BEGIN
  my_collection ('test') (1): = "Hello"; -It is the idea...
  "my_collection ('test') (2): = ' 8128 is the number";
  my_collection ("some other field' ') (1): = 'foo';
  -etc etc.
  
  But I get the error Oracle ORA-06531, reference to an uninitialized collection:
  
  Cause: A service of element or member of a nested table or varray has been referenced (where an initialized collection is necessary) without the collection has been initialized.
  
  Action: Initialize the collection with an appropriate constructor or assignment of the whole object.
  
  I tried to use 'extend()' initialize the varray, but no help...
  my_collection('test').extend (200);
  
  -----
  I also tried this:
  
  PROCEDURE myProcedure IS
  Data TYPE of TABLE IS OF VARCHAR2 (20);
  Column TYPE IS an ARRAY OF data INDEX BY VARCHAR2 (20);
  my_collection columns; -collection of multi dimensional pl/sql
  
  
  But it's always the same. I am quite new to PL/SQL, if any help would be great!
  
  
  -j

  900685 wrote:
  I'm doing an associative array, where the key is a string and the value is an array of strings.

  create or replace
    procedure myProcedure
      is
          type data_array
            is
              varray(200) of varchar2(20);
          type coltype
            is
              table of data_array
              index by varchar2(20);
          my_collection coltype;
      begin
          my_collection('test') := data_array('hello','8128 is the number');
          my_collection('some other field') := data_array('foo');
  end;
  /
  

  And if you want to add elements in varray:

  create or replace
    procedure myProcedure
      is
          type data_array
            is
              varray(200) of varchar2(20);
          type coltype
            is
              table of data_array
              index by varchar2(20);
          my_collection coltype;
      begin
          my_collection('test') := data_array('hello');
          my_collection('test').extend;
          my_collection('test')(2) := '8128 is the number';
          my_collection('some other field') := data_array('foo');
  end;
  /
  

  Or:

  create or replace
    procedure myProcedure
      is
          type data_array
            is
              varray(200) of varchar2(20);
          type coltype
            is
              table of data_array
              index by varchar2(20);
          my_collection coltype;
      begin
          my_collection('test') := data_array(); -- initialize
          my_collection('test').extend;
          my_collection('test')(1) := 'hello';
          my_collection('test').extend;
          my_collection('test')(2) := '8128 is the number';
          my_collection('some other field') := data_array('foo');
  end;
  /
  

  SY.

• 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

• 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

  I have a table proj_test .i want to recover the data in the associative array.

  How to do?

  create table proj_test as  
    select 1 as id, 1 as rn, 'Fred' as nm from dual union all  
    select 1,2,'Bloggs' from dual union all  
    select 2,1,'Scott' from dual union all  
    select 2,2,'Smith' from dual union all  
    select 3,1,'Jim' from dual union all  
    select 3,2,'Jones' from dual  
  
  

  You need not Associative array if you do a bulk of collect. You can use the nested PL/SQL table type.

  11g and more

  declare

  is of type tbl table of the proj_test % rowtype;

  tbl l_tbl;

  Start

  SELECT id, rn, nm bulk collect into l_tbl

  of proj_test;

  because me in 1.l_tbl.count

  loop

  dbms_output.put_line

  (

  RPAD (to_char (l_tbl (i) USER.USER), 10, ' ')

  || RPAD (to_char (l_tbl (i). (RN), 10, ' ')

  || l_tbl (i) .nm

  );

  end loop;

  end;

  Before 11 g

  declare

  type id_tbl is table of the proj_test.id%type;

  type rn_tbl is table of the proj_test.rn%type;

  type nm_tbl is table of the proj_test.nm%type;

  id_tbl l_id;

  l_rn rn_tbl;

  l_nm nm_tbl;

  Start

  SELECT id, rn, nm bulk collect into l_id, l_rn, l_nm

  of proj_test;

  because me in 1.l_id.count

  loop

  dbms_output.put_line

  (

  RPAD (to_char (l_id (i)), 10, ' ')

  || RPAD (to_char (l_rn (i)), 10, ' ')

  || l_nm (i)

  );

  end loop;

  end;

• Error renaming dates to an associative array of type date

  Hi all

  I am facing issue while assigning dates in an associative array of type date:

  Oracle version:

  SQL > select * from v version $;

  BANNER
  ----------------------------------------------------------------
  Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bi
  PL/SQL Release 10.2.0.1.0 - Production
  CORE 10.2.0.1.0 Production
  AMT for Linux: Version 10.2.0.1.0 - Production
  NLSRTL Version 10.2.0.1.0 - Production

  Stored procedure, I try to write is as follows

  1. create or replace procedure (jp1)
  2. p_start_date default date trunc(sysdate,'MM')
  3. p_end_date date default trunc (sysdate)
  4. )
  5. is
  6. number of l_no_of_days;
  7. type t_date_id is table of date
  8. index by pls_integer;
  9. l_date_id_arr t_date_id;
  10. Start
  11. l_no_of_days: = p_end_date - p_start_date;
  12. for i from 0
  14. .. l_no_of_days - 1
  15. loop
  16. l_date_id_arr: = p_start_date + i;
  17. dbms_output.put_line (p_start_date + i);
  18. end loop;
  19. end;
  20. /

  I get error on line 14 when compiling it. and the error message is as follows:

  JP1 PROCEDURAL errors:

  LINE/COL ERROR
  -------- -----------------------------------------------------------------
  14/5 PL/SQL: statement ignored
  14/22 PLS-00382: expression is of the wrong type

  While studying this, I tried the value of (p_start_date + i) using dbms_output.put_line and the output is so date itself.

  1. create or replace procedure (jp1)
  2. p_start_date default date trunc(sysdate,'MM')
  3. p_end_date date default trunc (sysdate)
  4. )
  5. is
  6. number of l_no_of_days;
  7. type t_date_id is table of date
  8. index by pls_integer;
  9. l_date_id_arr t_date_id;
  10. Start
  11. l_no_of_days: = p_end_date - p_start_date;

  12. for i from 0... l_no_of_days-1

  13. loop
  14. -l_date_id_arr: = p_start_date + i;
  15. dbms_output.put_line (p_start_date + i);
  16. end loop;
  17. end;
  18. /

  output of the

  1. exec jp1

  is as follows:

  1ST DECEMBER 13

  2 DECEMBER 13

  3 DECEMBER 13

  DECEMBER 4, 13

  5 DECEMBER 13

  DECEMBER 6, 13

  7 DECEMBER 13

  DECEMBER 8, 13

  9 DECEMBER 13

  DECEMBER 10, 13

  DECEMBER 11, 13

  DECEMBER 12, 13

  13 DECEMBER 13

  14 DECEMBER 13

  15 DECEMBER 13

  16 DECEMBER 13

  17 DECEMBER 13

  18 DECEMBER 13

  I see the release date itself. so why he throws error while the same assignment to an associative array of type date.

  I tried Google too for the same but without success.

  Any help is appreciated in this regard not or any pointer another thread on the internet or in this forum.

  Thanks in advance

  Jagdeep Seven

  Read associative arrays:

  1. create or replace procedure (jp1)
  2. p_start_date default date trunc(sysdate,'MM')
  3. p_end_date date default trunc (sysdate)
  4. ) is
  5. number of l_no_of_days;
  6. type t_date_id is table of date
  7. index by pls_integer;
  8. l_date_id_arr t_date_id;
  9. Start
  10. l_no_of_days: = p_end_date - p_start_date;
  11. because me in 0.l_no_of_days - 1
  12. loop
  13. l_date_id_arr (I): = p_start_date + i;
  14. dbms_output.put_line (p_start_date + i);
  15. end loop;
  16. end;

  ----

  Ramin Hashimzade

• 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

• Cannot run the autonomous block for input of associative array parameter

  Hello

  I have created an associative array in a package-PKG_CMT_DAP

  TYPE r_supply_type_id IS RECORD(
                                 supply_type_id            varchar2(50));
  TYPE t_supply_type_id IS TABLE OF r_supply_type_id INDEX BY BINARY_INTEGER;
  l_supply_type_id t_supply_type_id;
  

  Later created a test procedure with an input of the above kind parameter

  create or replace
  procedure test_prc(p_in_st_id IN PKG_CMT_DAP.t_supply_type_id)
  AS
  v_input1 number;
  v_input2 number;
  BEGIN
  FOR z IN 1..p_in_st_id.COUNT 
  LOOP
  DBMS_output.put_line(p_in_st_id(z)supply_type_id);
  END LOOP;
  END test_prc;
  

  How to update successfully.

  Created a stand-alone as block below

  DECLARE
  BEGIN
  test_prc(p_in_st_id=>(100,200,300));
  END;
  

  Above am past in 100,200,300 as an input string, and the expected output should display all the numbers above on the screen.

  But it throws the below error

  Error report:
  ORA-06550: line 3, column 1:
  PLS-00306: wrong number or types of arguments in call to 'TEST_PRC'
  ORA-06550: line 3, column 1:
  PL/SQL: Statement ignored
  06550. 00000 -  "line %s, column %s:\n%s"
  *Cause:    Usually a PL/SQL compilation error.
  *Action:
  

  Could you please help me where I am doing wrong?

  Kind regards

  Claudy Kotekal

  Claudy,

  While calling the procedure, you must declare the variable of type table. Give the values for the elements in the begin block and then pass that variable in the procedure. Something like below:

  Declare

  in_array PKG_CMT_DAP. r_supply_type_id;

  Begin

  in_array (1) .supply_type_id: = 100;

  in_array (2) .supply_type_id: = 200;

  in_array (3) .supply_type_id: = 300;

  test_prc (in_array);

  end;

  NOTE: There might be a few problems with my code syntax, but logic would be same.

  Try this and let me know.

  Thank you

• An associative array, how the records using the loop counter?

  In the associative array, how the records using the loop counter? for example
  

  declare
      type population is table of number index by varchar2(64);
      city_population population;   
  begin
      city_population('Samillve') := 200;
      city_population('Lindenhurst') := 300;    
      
      for i in 1 .. city_population.count
      loop
          dbms_output.put_line(city_population(i)); -- compiler error
      end loop;
  end;
  /

  That would look like

  SQL> ed
  Wrote file afiedt.buf
  
    1  declare
    2      type population is table of number index by varchar2(64);
    3      city_population population;
    4      l_index varchar2(64);
    5  begin
    6      city_population('Samillve') := 200;
    7      city_population('Lindenhurst') := 300;
    8      l_index := city_population.first;
    9      while( l_index IS NOT NULL )
   10      loop
   11          dbms_output.put_line(city_population(l_index ));
   12          l_index := city_population.next(l_index);
   13      end loop;
   14* end;
  SQL> /
  300
  200
  
  PL/SQL procedure successfully completed.
  

  Justin

• 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

• 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. ;)