Useful DQL Queries

    技术2022-05-20  26

    Useful DQL Queries

    http://dionrobin.wordpress.com/2010/02/08/useful-dql-queries/

     

    1. DQL to create user

    create “dm_user” object set client_capability=2, set default_folder=’’, set home_docbase=’’, set mailto:user_address=’a@abc.com’, set user_os_domain=’’, set user_name=’’, set user_os_name=’’, set user_privileges=0;

    2. DQL to execute stored procedure (works for all supported DBMSes)

    execute exec_sql with query=’execute my_sp_test ”123”,”prasad” ‘;

    3. Running DQL in batch mode

    a. Create a dql file

    b. Run the following from command prompt

    $idql docbasename -Uusername -Ppassword -Rtest.dql

    Example command

    C:/Documentum/product/5.3/bin>idql32 docbasename-Uusername -Ppassword -RC: /test.dql

    test.dql would contain something like this

    go

    go

    4. DQL to Get all Files under a Particular Cabinet

    select r_object_id, object_name from dm_document(all) where folder(’/Cabinet name’, descend);

    The above DQL gives all versions. To get only current versions

    select * from dm_document where folder (’/Cabinet name’, descend)

    5. DQL to get total number of documents and folders under a cabinet

    SELECT count(*) as cnt, ‘Docs’ as category FROM dm_document(all) WHERE FOLDER (’/Cabinet Name’,DESCEND) UNION SELECT count(*) as cnt, ‘Folders’ as category FROM dm_folder WHERE FOLDER (’/Cabinet Name’,DESCEND)

    6. DQL to find whether a document is a part of virtual document

    SELECT object_name,r_object_id FROM dm_sysobject WHERE r_object_id IN (SELECT parent_id FROM dmr_containment WHERE component_id = (SELECT i_chronicle_id FROM dm_sysobject WHERE r_object_id = ‘’))

    7. Repeating attributes

    Repeated attribute queries are always a fun. I am going to present here more repeated attribute queries. But for starters, recognize the importance of ANY keyword

    select r_folder_path from dm_folder where object_name =’myFolder’ and any r_folder_path =’/Cabinet Name/test’;

    8. DQL to find object type of a document

    select r_object_type from dm_document where object_name=’ObjectName’;

    9. DQL for index

    Following query creates index EXECUTE make_index WITH type_name=’dmi_workitem’,attribute=’r_workflow_id’

    Using the query below, one can find out whether index has been succesfully created or alternatively whether the index exists or not

    Select r_object_id,index_type,attribute,attr_count,data_space from dmi_index where index_type in (select r_object_id from dm_type where name=’dmi_workitem’);

    10. DQL to see sessions

    execute show_sessions

    11. Enable FTDQL

    SELECT r_object_id, score, text, object_name, r_object_type, r_lock_owner, owner_name, r_link_cnt, r_is_virtual_doc, r_content_size, a_content_type, i_is_reference, r_assembled_from_id, r_has_frzn_assembly, a_compound_architecture, i_is_replica, r_policy_id,acl_name, r_creation_date, r_modify_date, subject FROM custom_document WHERE (custom_attr1 = ’search1′ AND (custom_attr2 = ’search2′ AND )) AND (a_is_hidden = FALSE) ENABLE (FTDQL)

    12. DQL to get current date, time select DATE(now) as systime from dm_server_config;

    13. DQL to list all available templates in Webpublisher

    select * from my_document where folder(’/WebPublisher Configuration/Content Templates/myTemplates’,descend) and any r_version_label =’Approved’;

    14. DQL to list objects having duplicate names

    SELECT object_name, count(*) FROM dm_document GROUP BY object_name HAVING count(*) > 1 ORDER BY object_name

    15. Clear INBOX

    delete dmi_queue_item objects where delete_flag=0

    16. DQL to retrieve all required attributes of a particular type SELECT attr_name FROM dmi_dd_attr_info WHERE type_name=’dm_document’ AND is_required 0

    17. DQL to list workflow attachments

    select r_component_id, r_component_name from dmi_wf_attachment where r_workflow_id = ‘’

    18. If your statistics are not up to date, database may choose a very inefficient execution plan. Be sure toupdate statistics often. It is recommended that you use the dm_UpdateStatistics job as it will calculateextended statistics on particular tables and columns which provide additional performance benefits. If the DBA uses their own scripts to calculate the statistics, then these enhancements will not be available.

    19.Use the script “dctm_indexes_by_table.sql” to generate a list of all indexes on Documentum tables, ordered by table name. (Available from http://developer.documentum.com.) Use the script “dctm_indexes_by_index.sql” to generate a list of all indexes on Documentum tables, ordered by index name. (Available from http://developer.documentum.com.)

    20.It is strongly recommended that all indexes on Documentum base tables be created from within Documentum and not at the database level. There are two reasons for this: The internal conversion process from DQL to SQL will check for the presence of a dmi_index object for repeating valued attributes and will generate different SQL according to what it finds. If indexes are created directly through SQL*Plus, then Documentum will not know anything about them and will assume it is unindexed. This may result in a less efficient SQL query. Secondly, if the indexes are created from within Documentum, and they are inadvertently dropped, the dm_DBWarning job will automatically recreate them at next execution. The syntax for creating new indexes is as follows:

    In DQL: EXECUTE make_index WITH type_name=object_type, attribute=attribute_name{,attribute=attribute_name,…) or Using APIs: dmAPIGet(”apply,session,NULL,MAKE_INDEX,TYPE_NAME,S,object_type,ATTRIBUTE,S ,attribute_name(,ATTRIBUTE,S,attribute_name,…} These indexes will be created in the tablespace identified by the index_store server.ini parameter. Be sure to create the index on the appropriate type table. For example, although ‘keywords’ is an attribute of the dm_document type, it is actually inherited from ‘keywords’ from the dm_sysobject type.

    Drop the Index if Necessary If there is no performance improvement, OR the optimizer is not using the new index, drop it using: EXECUTE drop_index [[FOR] dmi_index_id] [WITH name = index_name] or dmAPIGet(”apply,session,dmi_index_id,DROP_INDEX [,NAME,S,index_name]“)

    21. Using the iapi utility and the trace API you can generate log information that contains the SQL resulting from a DQL query. This is useful when it is a DQL query that is performing poorly and you wish to test using a nonsuperuser account. Non-query type APIs are not traced. Here is an example of tracing a simple DQL query. trace,c,10,,DM_QUERY.

    More on TKPROF here

    http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96533/sqltrace.htm

    22. DQL Hints

    SELECT object_name FROM dm_document ENABLE (RETURN_TOP 10)

    For DB2, performance can be improved using SELECT object_name FROM dm_document ENABLE (RETURN_TOP 10, OPTIMIZE_TOP 10)

    The FETCH_ALL_RESULTS N hint fetches all the results from the database immediately and closes the cursor. The hint does not affect the execution plan, but may free up database resources more quickly. To fetch all the results, set N to 0. On SQL Server, it is recommended that you use SQL_DEF_RESULT_SETS instead of the FETCH_ALL_RESULTS hint. SQL_DEF_RESULTS_SETS provides the same benefits and is the recommended way to access SQL Server databases.

    Passthrough hints are hints that are passed to the RDBMS server. They are not handled by Content Server.

    To include a passthrough hint, you must identify the database for which the hint is valid. To identify the target database, keywords precede the hints. The valid keywords are: ORACLE, SQL_SERVER, SYBASE, and DB2. For example, the following statement includes passthrough hints for SQL Server: SELECT “r_object_id” FROM “dm_document” WHERE “object_name” =’test’ ENABLE SQL_SERVER(’ROBUST PLAN’,’FAST 4’,’ROBUST PLAN’) For portability, you can include passthrough hints for multiple databases in one statement. The entire list of hints must be enclosed in parentheses. The syntax is: (database_hint_list {,database_hint_list}) where database_hint_list is: db_keyword(’hint’{,’hint}) db_keyword is one of the valid keywords identifying a database. hint is any hint valid on the specified database. For example: SELECT object_name FROM dm_document doc dm_user u WHERE doc.r_creator_name = u.user_name ENABLE (ORACLE(’RULE’,’PARALLEL’), SYBASE(’AT ISOLATION READ UNCOMMITTED’),SQL_SERVER(’LOOP JOIN’,’FAST 1’)

    Use FETCH_ALL_RESULTS if you want to reduce the resources used by the database server by quickly closing cursors. On SQL Server, try FETCH_ALL_RESULTS if using SQL_DEF_RESULT_SETS did not improve query performance.

    23. If the table is registered, check with the owner of the registered table, or a Documentum superuser, about giving you access to the table.

    You will need at least a BROWSE permit on the registered table object in order to access it. If the table has not yet been registered, check with the table’s owner about registering it. Note that you must have READ access to the dm_registered object for this table in order to access it in any way (SELECT, INSERT, UPDATE, DELETE).

    Note that if you specified the special dm_dbo document base owner, the first parameter will hold the actual name of the document base owner.

    24. DQL to list docbrokers

    execute list_targets

    25. DQL to list worrkflow information

    select task_name, task_state, actual_start_date, dequeued_date from dmi_queue_item where router_id = ‘workflowId’

    26. Query to find active workflows, supervisors of the workflows

    select r_object_id, object_name, title, owner_name,r_object_type, r_creation_date, r_modify_date, a_content_type from dm_document where r_object_id in(select r_component_id from dmi_package where r_workflow_id in (select r_object_id from dm_workflow where r_runtime_state = 1))

    27. Though this is not DQL, I thought of mentioning here as it most widely used DFC operation

    sysObject.queue (”dm_autorender_win31?, _ “rendition”, _ 0, _ False, _ dueDate, _ “rendition_req_ps_pdf”)

    28. To find ACLs related to dm_sysobject: select r_object_id as obj_id, object_name from

    dm_sysobject (all)

    where acl_name =” and

    acl_domain = ” To find ACLs as the default ACL of a user: select user_name from dm_user where acl_name=” To find ACLs associated with a type: select r_object_id, r_type_name from dmi_type_info where acl_domain=” and acl_name=” When these queries do not return any related objects and you still cannot delete the ACL, use tracing: In the Message Tester or IAPI, execute the command: apply,c,NULL,SQL_TRACE,LEVEL,I,1 Then, try to delete the ACL that is causing problem. Turn off tracing by executing: apply,c,NULL,SQL_TRACE,LEVEL,I,0 Examine the session log for the trace output, located in $DOCUMENTUM/dba/log// Excerpt of the session log: [DM_ACL_E_DESTROY_IN_USE]error: “Failed to destroy the ACL ‘Documentum Users’ in domain ‘dbabep’ because it is in use.”

    [DM_SESSION_I_SESSION_QUIT]info: “Session 01000dcb80010ccf quit.” Run the following query from Oracle SQL: select r_object_id from dm_sysobject_s where acl_domain =’dbabep’ and acl_name =’Documentum Users’ union select r_object_id from dm_user_s where acl_domain = ‘dbabep’ and acl_name =’Documentum Users’ union select r_object_id from dmi_type_info_s where acl_domain =’dbabep’ and acl_name =’Documentum Users’ It will return the r_object_id value = 09000dcb800362c4. Run the following query from IDQL: select object_name

    from dm_sysobject

    where r_object_id=’09000dcb800362c4′ If the above query returned nothing, then this object cannot be accessed by any Documentum WorkSpace method, only via SQL in the underlying Oracle database. The following entries must be deleted at the RDBMS level: dm_sysobject_s and dm_sysobject_r tables; there are no entries in the dmi_object table

    29. List of object types and corresponding identifiers. Helpful when reading the code.

    00 dmi_audittrail_attrs 03 dm_type 05 dmr_containment 06 dmr_content 08 dm_application 08 dm_job 08 dm_procedure 08 dm_query 08 dm_script 08 dm_smart_list 09 dm_document 0b dm_folder 0c dm_cabinet 0d dm_assembly 10 dm_method 11 dm_user 12 dm_group 19 dm_registered 1f dmi_index 26 dmi_registry 27 dm_format 28 dm_filestore 28 dm_store 2c dm_distributedstore 2e dmi_type_info 2f dm_dump_record 30 dmi_dump_object_record 31 dm_load_record 32 dmi_load_object_record 37 dm_relation 3a dm_location 3b dm_fulltext_index 3c dm_docbase_config 3d dm_server_config 40 dm_blobstore 41 dm_note 45 dm_acl 46 dm_policy 49 dmi_package 4a dmi_workitem 4c dm_activity 4d dm_workflow 53 dm_literal_expr 5e dm_federation 5f dm_audittrail_acl 5f dm_audittrail_group 5f dm_audittrail 66 dm_alias_set 6a dmi_dd_attr_info 0b dm_taxonomy 0b dm_xml_application 6b dm_display_config 20 dmi_sequence

    30. Job scheduler Query

    SELECT ALL r_object_id, a_next_invocation FROM dm_job WHERE ( (run_now = 1) OR ( (is_inactive = 0) AND ( ( a_next_invocation <= DATE(’now’) AND a_next_invocation IS NOT NULLDATE ) OR ( a_next_continuation DATE(’now’)) OR (expiration_date IS NULLDATE)) AND ( (max_iterations = 0) OR (a_iterations Template Properties 3) Under Template Audit Trail Setting, select option ‘Always On’ – Audit trail data for each instance will be available and saved at workflow completions.

    31. In a workflow, a performer can enter comments while he/she is performing the task. And those comments are carried to the next performer in this workflow. When using WebPublisher workflow report to review the workflow instances, and in workflow history, you are only able to get the truncated comments back from WP’s interface. Especially for those already aborted workflow instances, there is no way that you can get the complete comments back from WP’s GUI. In some cases, those comments are very important to our customers and they need to find a way to get those comments back.

    Here is the steps to get those comments back:

    ==

    1) Identify the workflow from the dm_workflow table, get the r_object_id of the workflow:

    select r_object_id, object_name from dm_workflow where object_name = ‘your work flow name’ 2) Identify the notes that are carried by this workflow:

    select r_note_id from dmi_package where r_workflow_id = ‘ the object id of the workflow’ 3) Get the content id of each of those note ids returned:

    select r_object_id from dmr_content where any parent_id = ‘the note id’ 4) Go to DA, Administration->Job Management->Administration, use the “GET_PATH” method to find out the path of the files which stores the comments.

    32. Query to get all documents expired in previous 1 month

    SELECT s.r_object_id, s.object_name, DATETOSTRING(”r.a_expiration_date”,’mm/dd/yyyy’) as creation_date FROM dm_sysobject_s s, dm_sysobject_r r WHERE s.r_object_id = r.r_object_id AND s.r_object_type = ‘dm_document’ AND DATEDIFF(month,”r.a_expiration_date”,DATE(NOW)) >= 0 AND DATEDIFF(month,”r.a_expiration_date”,DATE(NOW)) <= 1 AND r.r_version_label = ‘Expired’ ORDER BY 3

    33. DQL to find all the folders in a Cabinet, where the folders are contentless SELECT f1.object_name, f1.r_object_id, f1.r_folder_path FROM dm_folder f1 WHERE FOLDER(’/Cabinetname’,descend) AND NOT EXISTS (SELECT f2.object_name FROM dm_sysobject f2 WHERE ANY f2.i_folder_id = f1.r_object_id) ORDER BY object_name 34. Find Super Groups and sub groups select distinct r_object_id, group_name as super_groups from dm_group_sp where group_name not in (select gs.group_name from dm_group_r gr, dm_group_s gs where gr.r_object_id = gs.r_object_id group by gs.group_name having count(gr.i_supergroups_names) > 1) union select distinct r_object_id, group_name as sub_groups from dm_group_sp where group_name in (select gs.group_name from dm_group_r gr, dm_group_s gs where gr.r_object_id = gs.r_object_id group by gs.group_name having count(gr.i_supergroups_names) > 1) ;

    35. DQL for finding all checked out documents in a docbase select * from dm_document where (r_lock_owner is not nullstring or r_lock_owner ” or r_lock_owner ‘ ‘)

    36.DQL to list the users who has access to particular folder path SELECT i_all_users_names FROM dm_group WHERE group_name IN (SELECT r_accessor_name FROM dm_acl WHERE object_name IN (SELECT acl_name FROM dm_folder WHERE ANY r_folder_path = ‘/folderpath’)) ORDER BY i_all_users_names

    37. Query to find out what user signed off on what document

    SELECT “audited_obj_id” FROM “dm_audittrail” WHERE “event_name” = ‘dm_signoff’ AND “user_name” = ‘tom’ AND substr (”audited_obj_id”, 1, 2) = ‘09′AND “time_stamp” >= DATE(’01/01/1998′, ‘dd/mm/yy’) AND “time_stamp” SELECT object_name, r_version_label FROM dm_sysobject where any r_version_label in (’WIP’) and r_object_id not in (select r_object_id from dm_sysobject where any r_version_label in (’Staging’, ‘Approved’, ‘Expired’) )

    39. Query to get all expired documents in previous month SELECT s.r_object_id, s.object_name, DATETOSTRING(”r.a_expiration_date”,’mm/dd/yyyy’) as creation_date FROM dm_sysobject_s s, dm_sysobject_r r WHERE s.r_object_id = r.r_object_id AND s.r_object_type = ‘dm_document’ AND DATEDIFF(month,”r.a_expiration_date”,DATE(NOW)) >= 0 AND DATEDIFF(month,”r.a_expiration_date”,DATE(NOW)) <= 1 AND r.r_version_label = ‘Expired’ ORDER BY 3

    0. Query to find the file system path location of a document

    select doc.r_object_id, doc.object_name, MFILE_URL(”,-1,”) as mypath,doc.i_folder_id from dm_document doc where ——————————————————————

    Thursday, March 22, 2007 DQL Tips ————————————————————————————-

    *** get CURRENT TIME on server *** select DATE(NOW) as systime from dm_server_config

    ————————————————————————————-

    *** get the implicit version label *** select s.r_object_id,s.object_name,r.r_version_label from dm_sysobject s, dm_sysobject_r r where r.r_object_id = s.r_object_id and

    r.i_position = -1

    ————————————————————————————-

    *** include r_object_id to remove blank rows

    select object_name, r_object_id, a_expiration_date from dfas_common where folder(‘/Raj Srinivasan’) and any a_expiration_date is not nulldate

    ————————————————————————————-

    *** select documents with pdf renditions (optimized for performance) *** select * from dm_document where exists(select * from dmr_content where any parent_id=dm_document.r_object_id and full_format=’pdf’)

    ————————————————————————————-

    *** select all documents that have nulldate in repeating attribute select object_name from dfas_common where folder(‘/Raj Srinivasan) and r_object_id NOT IN (select r_object_id from dfas_common where folder(‘/Raj Srinivasan’) and any a_expiration_date is not nulldate)

    ————————————————————————————-

    *** select all documents that have nulldate in repeating attribute or a_expiration_date has past select count(*) from dfas_common where folder(‘/content/Corporate Resources/Human Resources’,descend) and (any a_expiration_date <

    date(today) or (r_object_id NOT IN (select r_object_id from dfas_common where folder('/content/Corporate Resources/Human Resources',descend)

    and any a_expiration_date is not nulldate)))

    ————————————————————————————-

    *** select folderpath with filename select distinct s.object_name, fr.r_folder_path from dm_sysobject (all) s,dm_sysobject_r sr,dm_folder_r fr where sr.i_position = -1 and sr.r_object_id = s.r_object_id and fr.r_object_id = sr.i_folder_id and fr.i_position = -1 and fr.r_folder_path like '/ChemNet/%' order by fr.r_folder_path,s.object_name

    ————————————————————————————-

    *** empty folders *** SELECT r_object_id,r_folder_path FROM dm_folder f WHERE r_object_id NOT IN (SELECT distinct i_folder_id FROM dm_sysobject WHERE any i_folder_id = f.r_object_id and folder('/content',descend)) and folder('/content',descend)

    ————————————————————————————-

    *** NULL a_effective_date *** select object_name from dfas_common where folder('/images', descend) and r_object_id NOT IN (select r_object_id from dfas_common where folder('/images', descend) and any a_effective_date is not nulldate)

    ————————————————————————————-

    *** select component from workitem *** select r_component_id from dmi_package p where exists (select r_object_id from dmi_workitem w where w.r_object_id = and w.r_workflow_id = p.r_workflow_id and w.r_act_seq_no = p.r_act_seq_no)

    ————————————————————————————-

    *** select renditions *** SELECT s.object_name, f.dos_extension FROM dm_dbo.dm_sysobject_s s, dm_dbo.dmr_content_r c, dm_dbo.dm_format_s f WHERE (c.parent_id = s.r_object_id) and (c.i_format = f.r_object_id) AND c.page=0 AND f.dos_extension ‘xml’ AND folder(‘/whatever’)

    ————————————————————————————-

    *** find workflow given document *** select * from dm_workflow where r_object_id in (select r_workflow_id from dmi_package where any r_component_id in (select r_object_id from

    dm_sysobject (all) where i_chronicle_id in (select i_chronicle_id from dm_sysobject where r_object_id=”))) and r_runtime_state=’1′

    ————————————————————————————-

    *** return only inherited attributes *** SELECT attr_name FROM dmi_dd_attr_info WHERE type_name = ‘my_custom_type’ AND attr_name NOT IN (SELECT attr_name FROM dmi_dd_attr_info WHERE type_name = ‘dm_document’)

    ————————————————————————————-

    Documents that are uploaded in to docbase b/w Aug 2004 and Oct 2004

    select a.r_object_id,a.r_creation_date,a.r_modify_date,b.user_group_name from dm_document a, dm_user b where (a.r_creation_date >= Date(’08/01/2004′,’mm/dd/yyyy’) and a.r_creation_date 0

    ————————————————————————————-

    Subject: Why do we create four views for each subtype?

    Note: For example the type dm_document has four views:

    dm_document_sp dm_document_sv dm_document_rp dm_document_rv

    The two _sp and _rp views are used by DQL and the two _sv and _rv views are used by the Object Manager. Also, the _sp and _sv views are for single (non-repeating) attributes, while the _rv and _rp views are for repeating attibutes.

    ————————————————————————————-

    Label Text of the either Sytem Type or Custom Type

    select label_text from dm_nls_dd_info where parent_id in (select r_object_id from dm_aggr_domain where type_name = ‘field_type’)

    Results: Content Location Keywords Category Business Unit Owner

    ————————————————————————————-

    DQL to list all documents attributes and their associated folder path

    select s.object_name, fr.r_folder_path from dm_document s, dm_sysobject_r sr, dm_folder_r fr where s.i_is_deleted = 0 and sr.i_position = -1 and sr.r_object_id = s.r_object_id and fr.r_object_id = sr.i_folder_id and FOLDER(‘/ChemNet’, descend) and fr.r_folder_path like ‘/ChemNet/%’ order by fr.r_folder_path,s.object_name

    ————————————————————————————-

    *** Web cabinet of a content ***

    SELECT object_name FROM dm_cabinet WHERE r_object_id IN (SELECT i_cabinet_id FROM dm_folder WHERE r_object_id IN (SELECT i_folder_id FROM dm_document (ALL) WHERE object_name like ‘test%’)) AND r_object_type=’wcm_channel’

    OR

    select r_object_id, object_name from wcm_channel where r_object_id in (select i_ancestor_id from dm_folder where r_object_id in (select i_folder_id from dm_sysobject where object_name = ‘test’))

    ————————————————————————————-

    *** To get the first level folders from the cabinets ***

    select object_name from dm_folder where any i_folder_id in (select r_object_id from dm_cabinet where object_name=’Cabinets’)

    ————————————————————————————- *** To show the previous Active content ***

    select r_object_id,i_chronicle_id,DATETOSTRING(DATE(TODAY),’ddmmyyyy’) as sysdate from dm_document (ALL) where object_name like ‘test%’ and

    FOLDER(‘/ChemNet/ChemonicsProcess/Bidding’) and any r_version_label = ‘Active’

    ————————————————————————————- To find the folders for particular group for specified permission

    select for write object_name from dm_folder where acl_name IN (select object_name from dm_acl where any r_accessor_name = ‘dm_world’) and folder(‘/ChemNet’,descend)

    or

    select object_name from dm_folder where acl_name IN (select object_name from dm_acl where any r_accessor_name = ‘dm_world’ and any r_accessor_permit = ’7′) and folder(‘/ChemNet’,descend)

    1 – NONE 2 – BROWSE 3 – READ 4 – RELATE 5 – VERSION 6 – WRITE 7 – DELTE

    ————————————————————————————-

    DFC to insert rows into registered table

    public static IDfCollection execQuery(String queryString, IDfSession session) throws DfException{ IDfCollection col = null; //Collection for the result IDfClientX clientx = new DfClientX(); IDfQuery q = clientx.getQuery(); //Create query object q.setDQL(queryString); //Give it the query

    // example queryString: “insert into dm_dbo.your_registered_table (field1, [field]) values(,[ col = q.execute(session, IDfQuery.DF_EXEC_QUERY); System.out.println(“Query executed.”); return col; }

    ————————————————————————————-

    How to avoid redundancy for this simple query?

    select distinct d.object_name,sys.authors from dm_document d, dm_sysobject_r sys where folder (‘/xyz/xyz_first’) and d.r_object_id = sys.r_object_id and (sys.i_position=-1 or (sys.i_position<=-2 and sys.authors is not null))


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