Uwe Schimanski. Oracle dir einen

Transcription

1 Seite 1 von 27 Seab@er Software AG

2 Seite 2 von 27 Seab@er Software AG

3 1. Vorwort Database Views DBA Views Advanced Queuing Advisors Alerts Audit Cluster Context and Policy Columns Constrains Data Pump Dictionary Information Dimension Directories and Libraries Distributed Export and Import Histograms Historical Statistics Index Java and XML Jobs (Different from Scheduler Jobs) Lobs Locks Materialized Views Metrics Object Type Outlines Partitions Program Units Relational Objects Replication Resource Manager Scheduler Security SQL Tuning Set Standby Database Statistics Storage Streams Supplemental Log Groups and Logminer Workload Repository Views für Problembehandlung und Tuning Archivierung Instance / Database Datenbankfiles Speicher Zugriffskontrolle Copyright Seite 3 von 27 Seab@er Software AG

4 1. Vorwort Diese Dokumentation ist entstanden, da ich beruflich mich mit Oracle beschäftigen musste. Was ich sehr gerne übernommen habe und es macht richtig Spaß mit Oracle zu arbeiten. Alle Informationen, die ich zusammentragen konnte, habe ich nun in dieser Dokumentation geschrieben. Ebenso sind meine Erfahrungen in diese Dokumentation eingeflossen. Oracle wird auf Linux und Windows Servern in unserer Firma betrieben. Die Installation von Oracle wird für die Linux Server beschrieben, da eine Windows Installation nicht so aufwendig ist. Diese Dokumentation wurde für die Oracle Datenbank 10G R2 und 11G R1 geschrieben und auch getestet. Die Datenbank in der Version 11G R1 wurde in einer VMWare Session installiert und als Betriebssystem wurde Novel SLES 10 SP2 installiert. Bei dem Betriebssystem und auch Oracle handelt es sich um die 32 Bit Version. Für die 64 Bit Version werden noch zusätzliche Softwarepakete gebraucht. Seite 4 von 27 Seab@er Software AG

5 2. Database Views 2.1 DBA Views Alle DBA-Views incl. der sind von Oracle übernommen worden Advanced Queuing dba_aq_agent_privs dba_aq_agents dba_queue_schedules dba_queue_tables dba_queues dba_transformations displays information about the registered AQ agents that are mapped to all users in the provides information about all registered AQ agents in the describes the current schedules for propagating messages. shows all the queue tables created in the list all database queues. displays information about all transformations in the Advisors dba_advisor_actions dba_advisor_definitions dba_advisor_commands dba_advisor_findings dba_advisor_journal dba_advisor_log dba_advisor_object_types Displays information about the actions associated with all recommendations in the Each action is specified by the command and ATTR1 to ATTR6 columns. Each command defines how the attribute columns will be used. Displays the properties of all advisors in the The view contains one row for each task, representing the current state of the task as well as execution-specific data such as progress monitoring and completion status. Displays information about the commands used by all advisors in the database for specifying recommended actions and about the set of commands in the command column of v$session. Displays the findings discovered by all advisiors in the Displays the journal entries for all tasks in the Displays information about the current state of all tasks in the database as well execution-specific data such as progress monitoring and completion status. The view contains one row for each task. Disolays information about the objects types used by all advisors in the database and about the regular database object types, such as table and index. dba_advisor_objects Display information about the objects currently referenced by all advisors in the Each row in the view pertains to an object instantiation. Seite 5 von 27 Seab@er Software AG

6 dba_advisor_parameters dba_advisor_rationale dba_sqltune_rationale_plan dba_advisor_recommendations dba_advisor_sqla_rec_sum dba_advisor_sqla_wk_map dba_advisor_sqla_wk_stmts dba_advisor_sqlw_journal dba_advisor_sqlw_parameters dba_advisor_sqlw_stmts dba_advisor_sqlw_sum dba_advisor_sqlw_tables dba_advisor_sqlw_templates dba_advisor_tasks dba_advisor_templates Display the parameters and their current values for all tasks in the Displays information about the rationales for all recommendations of the Displays the association between rationales and operations in the execution plan of all sql statements in the Displays the results of an analysis of all recommendations in the Database. A recommendation can have multiple actions associated with it. Actions are described in the DBA_ADVISORS_ACTIONS view. A recommendation also point to a set of rationales that present a justification / reasoning for that recommendation. These rationales are in the DBA_ADVISOR_RATIONALE view. Displays recommendation rollup information for all workload objects in the database after a sql access advisor analysis operation. Displays the workload references for all tasks in the Workload references are necessary to enable sql access advisor to find required workload data. Displays rows that correspond to all statement in the workload. All columns are guaranteed to be non-null. Displays the journal entries for all workload objects in the Displays all workload parameters and their current values in the Displays rows that correspond to all statements in the workload. Displays an aggregated picture of all sqlwkld workload objects in the Displays cross-references between the workload statements and the tables referenced in the statements. Displays an aggregated picture of all sqlwkld template opjects in the database: Displays information about all tasks in the The view contains one row for each task. Each task contains name that is unique to the owner. Task names are just informational and no enforced within any namespace. Displays information about all templates in the Seite 6 von 27 Seab@er Software AG

7 2.1.3 Alerts dba_alert_arguments dbms_alert_info dba_outstanding_alert dba_thresholds dba_warning_settings Lists the messages ID and arguments of outstanding alerts. Describes registered alerts. Describes all outstanding alerts. Describes all threshold of the Shows the warning settings for all projects Audit dba_audit_exists dba_audit_object dba_audit_policies dba_audit_policy_columns dba_audit_session dba_audit_statements dba_audit_trail dba_common_audit_trail dba_fga_audit_trail dba_obj_audit_opts dba_priv_audit_opts dba_stmt_audit_opts List audit trail entries produced by audit not exists ans audit exists. Shows audit trail records for statements concerning objects- specifically tables, clusters, views, indexes, sequences, (public) database links, (public) synonyms, procedures, triggers, rollback segments, tablespaces, roles and users. Lists fine-grained auditing policies in the List fine-grained auditing policy columns in the Shows all audit trail records concerning connect and disconnect. Displays audit trail records concerning grant, revoke, audit, noaudit and alter system. Displays all audit trail entries. Shows combined standard and file-grained audit trail entries. Lists all fine-grained audit event logs. Lists auditing options for all tables and views. Describes the current system privileges being audited, across the system and by user. Describes the current system auditing options, across the system and by user Cluster dba_clusters dba_cluster_hash_expressions dba_clu_columns Describes all clusters in the Lists hash functions for all clusters. Shows mapping of tbale columns to cluster columns. Seite 7 von 27 Seab@er Software AG

8 2.1.6 Context and Policy dba_context dba_global_context dba_policies dba_policy_contexts dba_policy_groups Describe all context namespace information. Describe all context information accessible globally. Lists all row-level security policies in the Returns all policies driving context defined for any synonym, table or view in the Shows all policies groups defined for any synonym, table or view in the Columns dba_partial_drop_tabs dba_unused_col_tabs Displays all tables with partially dropped columns in the Lists all tables with unused columns in the Constrains dba_cons_columns dba_constraints Returns information about accessible columns in constraint definitions. Lists constraint definitions on all tables Data Pump dba_datapump_jobs dba_datapump_sessions dba_export_objects Displays data pump jobs. Displays data pump sessions attached to a job. Lists export include and exclude object type names Dictionary Information dba_catalog dba_views Shows all database tables, views, synonyms and sequences. Describes all views in the Seite 8 von 27 Seab@er Software AG

9 Dimension dba_dim_attributes dba_dim_child_of dba_dim_hierarchies dba_dim_join_key dba_dim_levels dba_dim_level_key dba_dimensions Represents the relationship between a dimension level and a functionally dependent column. Represents a 1:n hierarchical relationship between a pair of levels in a dimension. Represents a dimension hierarchy. Repersents a join between two dimension tables. Describes dimension levels visible to the dba. Repersents columns of a dimension level. Describes dimension objects accessible to the dba Directories and Libraries dba_directories dba_external_locations dba_external_tables dba_libraries Describes all directories. Describes the external table locations accessible to the dba. Describes the external tables accessible to the dba. Describes libraries in the Distributed dba_2pc_neighbors Displays information about incoming and outgoing connections for pending transactions. dba_2pc_pending Displays information about distributed transactions awaiting recovery. dba_db_links dba_pending_transactions dba_proxies Shows all database links in the Displays information about unresolved global transactions. Displays information about all proxy connections Export and Import dba_exp_files dba_exp_objects dba_exp_version Describes export files. Lists objects that have been incrementally exported. Shows the Version number of the last export session. Seite 9 von 27 Seab@er Software AG

10 Histograms dba_part_col_statistics dba_part_histograms dba_subpart_col_statistics dba_subpart_histograms dba_tab_histograms index_histogram Provides column statistics and histogram information for partitions of all tables in the Provides histogram data (endpoints per histogram) for histograms on all table partitions in the Provides column statistics and histogram information for all subpartitions in the Lists actual histogram data (endpoints per histogram) for histograms on all table subpartitions in the Shows histograms on columns on all tables. Provides statistics on keys with repeat count Historical Statistics dba_alert_history dba_cl_dir_instance_actions dba_dba_dir_escalate_actions dba_db_dir_quiesce_actions dba_db_dir_service_actions dba_db_dir_session_actions dba_feature_usage_statistics dba_high_water_mark_statistics dba_hist_active_sess_history dba_hist_bg_event_summary dba_hist_buffer_pool_stat dba_hist_cr_block_server dba_hist_current_block_server dba_hist_database_instance dba_hist_datafile Describes the alert history. Displays the recent history of instance operations submitted by the local direcrtory. Displays the recent history of escalations from local directory to cluster directory. Displays the recent history of quiesce operations submitted by the local directory. Displays the recent history of service operations submitted by the local directory. Displays the recent history of session migration jobs submitted by the local directory. Returns database feature usage statistics. Returns database high-water-mark statistics. Displays active session historical statistics information. Summarizes background event historical statistics information. Provides buffer pool historical statistics information. Displays consistent read block server historical statistics. Returns current block server historical statistics. Displays database instance information. Returns historical statistics on the name of datafile. Seite 10 von 27 Software AG

11 dba_hist_db_cache_advice dba_hist_dlm_misc dba_hist_enqueue_stat dba_hist_event_name dba_hist_filestatxs dba_hist_instance_recovery dba_hist_java_pool_advice dba_hist_latch dba_hist_latch_children dba_hist_latch_misses_summary dba_hist_latch_name dba_hist_latch_parent dba_hist_librarycache dba_hist_log dba_hist_metric_name dba_hist_mttr_target_advice dba_hist_optimizer_env dba_hist_osstat dba_hist_osstat_name dba_hist_pgastat dba_hist_pga_target_advice dba_hist_parameter dba_hist_parameter_name dba_hist_resource_limit dba_hist_rowcache_summary dba_hist_seg_stat dba_hist_seg_stat_obj dba_hist_service_name dba_hist_service_stat dba_hist_service_wait_class Displays db cache advice history information. Provides information on distributed lock manager miscellaneous historical statistics. Provides historical statistics information on enqueue. Provides event name historical statistics information. Displays datafile historical statistics information. Provides instance recovery historical statistics information. Returns Java pool advice history. Provides latch historical statistics information. Provides latch children historical statistics information. Displays latch misses summary historical statistics information. Displays latch name historical statistics information. Provides latch parent historical statistics information. Returns library cache historical statistics information. Displays log historical statistics information. Provides metric name historical statistics information. Shows mean time to recover target advice history. Provides optimizer environment information. Provides operating system historical statistics information. List operating system statistics names. Provides PGA historical statistics information. Shows PGA target advice history. Displays parameter historical statistics information. Provides parameter name historical statistics information. Provides resource limit historical statistics information. Presents row cache historical statistics information summary. Provides historical statistics information. Provides segment name historical statistics information. Displays service name historical statistics information. Shows historical service statistics. Present historical service wait class statistics. Seite 11 von 27 Software AG

12 dba_hist_sga dba_hist_sgastat dba_hist_shared_pool_advice dba_hist_sqlbind dba_hist_sql_plan dba_hist_sqlstat dba_hist_sqltext dba_hist_sql_summary dba_hist_sql_workarea_hstgrm dba_hist_stat_name dba_hist_sysstat dba_hist_sys_time_model dba_hist_system_event ablespace_stat dba_hist_tbspc_space_usage dba_hist_tempfile Present SGA historical statistics information. Present SGA pool historical statistics information. Displays shared pool sdvice history. Provides SQL bind historical statistics information. Returns SQL plan historical statistics information. Provides SQL statements historical statistics information. Provides SQL text historical statistics information. Summarized SQL statistics. Shows SQL work area histogram history. Displays statistics name historical statistic information. Displays system statistic historical statistics information. Provides system time model historical statistics information. Presents system event historical statistics information. Displays tablespace statistics historical statistics information. Displays tablespace usage historical statistics information. Provides names of temporary datafiles historical statistics. dba_hist_tempstatx Presents temporary datafile statistics historical statistics information. dba_hist_thread dba_hist_undostat dba_hist_waitstat dba_tsm_history Provides thread historical statistics information. Displays undo historical statistics information. Displays wait historical statistics information. Present transparent session migration statistics Index dba_indexes dba_ind_columns dba_ind_expressions dba_ind_subpartitions dba_join_ind_columns dba_part_indexes Describe all indexes in the Displays columns constituting indexes on all tables and clusters. Displays functional index expressions on all tables and clusters. Describes, for each index subpartition in the database, the partition-level partitioning information, the storage parameters for the subpartition and various partition statistics collected by analyze statements. Shows join index columns comprising the join conditions. Displays the object-level partitioning information for all portioned indexes in the Seite 12 von 27 Software AG

13 Java and XML dba_java_arguments dba_java_classes dba_java_derivations dba_java_fields dba_java_implements dba_java_inners dba_java_layouts dba_java_methods dba_java_policy dba_xml_schemas dba_java_throws dba_xml_tab_cols dba_xml_tables dba_xml_views dba_xml_view_cols Presents arguments information on all stored Java classes. Presents class-level information on all stored Java classes. Maps Java source objects and their derived Java class objects and Java resource objects for all Java classes. Provides field information on all stored Java classes. Lists interfaces implemented by stored Java classes. Lists inner classes referred to by the stored Java class. Provides layout information about stored Java classes. Displays method information on all stored Java classes. Lists Java security permissions for all users. Describes all the registered XML schemas. Lists exceptions thrown from a method of a class owned by the user. Describes all XML table columns in the Describes all XML tables in the Describes all XML views in the Describes the columns of all XML views in the Jobs (Different from Scheduler Jobs) dba_jobs dba_jobs_running Shows all jobs in the Lists all jobs in the database that are currently running, by joining v$lock and jobs$ Lobs dba_lob_partitions dba_lob_templates dba_lobs dba_part_lobs Displays all LOB partitions in the Describes all LOB subpartition templates in the Describes LOBs contained in all tables. Provides table-level information for all partitioned LOBs in the database, including default attributes for LOB data partitions. Seite 13 von 27 Seab@er Software AG

14 Locks dba_blockers dba_ddl_locks dba_dml_locks dba_kgllock dba_lock dba_lock_internal dba_waiters Displays a session if it is not waiting for a locked object but is holding a lock on an object for which another session is waiting. Lists all ddl locks held in the database and all outstanding requests for a ddl lock. Lists all dml locks held in the database and all outstanding requests for a dml lock. Lists all the locks and pins held on KGL objects (objects in the kernel generic library cache). List all locks or latches held in the database and all outstanding requests for a lock or latch. Displays a row for each lock or latch that is being held and one row for each outstanding request for a lock or a latch. Shows all the sessions that are waiting for a lock but do not hold locks for which another session is waiting Materialized Views dba_base_table_mviews dba_mview_aggregates dba_mview_analysis dba_mview_comments dba_mview_detail_relations dba_mview_joins dba_mview_keys dba_mview_log_filter_cols dba_mview_logs dba_mview_refresh_times dba_mviews dba_rchild dba_refresh dba_refresh_children Displays all materialized views with a log or logs in the Describe the materialized view aggregates accessible to the dba. Describes the materialized views accessible to the dba. Shows comments on all materialized views in the Describes the materialized view detail tables accessible to the dba. Describe a join between two columns in the where clause of a materialized view accessible to the dba. Describes the columns that appear in the group by list of a materialized view accessible to the dba. Shows all filter columns (excluding PK cols) being logged in the materialized view logs. Shows all materialized view logs in the Presents all fast refreshable materialized views and their last refresh times for each master table. Shows all materialized views in the Lists all the children in any refresh group. This View is not a join. Returns all the refresh groups. Lists all the objects in refresh groups. Seite 14 von 27 Seab@er Software AG

15 dba_registry_hierarchy dba_registered_mviews dba_rewrite_equivalences dba_rgroup dba_summaries dba_tune_mview Displays information about the components loaded into the database, grouped by owner and reorganized in the component hierarchy. Shows registered materialized views of local tables. Describes rewrite equivalence accessible to the dba. Lists all refresh groups. This view is not a join. Describes the summaries accessible to the dba. Shows the result, in a catalog view, after executing the tune_mview() API Metrics dba_hist_filemetric_history dba_hist_sessmetric_history dba_hist_sysmetric_history dba_hist_sysmetric_summary dba_hist_waitclassmet_history dba_tablespace_usage_metrics Provides file metrics history. Presents session metric history. Displays system metric history. Displays system metric history summary. Provides wait class metric history. Describes all tablesspace space usage metrics Object Type dba_coll_types dba_cons_obj_columns dba_indextype_arraytypes dba_indextype_operators dba_indextypes dba_method_params dba_method_result dba_nested_table_cols dba_nested_tables dba_obj_colattrs dba_object_tables dba_objects Describes all named collection types in the Lists types to which an object column or attribute is constrained in all tables in the Displays all array types specified by the indextype. Presents all indextype operators. Shows all indextypes. Describes method parameters of all types in the Describes method results of all types in the Displays columns of nested tables. Describes nested tables contained in the Describes object columns and attributes contained in all tables in the Describe all object tables in the Shows all objects in the Seite 15 von 27 Seab@er Software AG

16 dba_refs dba_sqlj_type_attrs dba_sqlj_type_methods dba_sqlj_types dba_type_attrs dba_type_methods dba_type_versions dba_types dba_varrays Describe ref columns contained in all tables. Describe attributes of all types in the Describe methods of all types in the Describe all types in the Describe attributes of all types in the Describe methods of all types in the Describes each type version in the Describe all types in the Describes varrays in tables accessible to the user Outlines dba_outlines dba_outline_hints Shows stored outlines. Lists hints stored in outlines Partitions dba_ind_partitions dba_lob_subpartitions dba_part_key_columns dba_part_tables dba_subpart_key_columns dba_subpartition_templates dba_tab_partitions dba_tab_subpartitions Describes, for each index partition in the database, the partition-level partitioning information, the storage parameters for the partition and various partition statistics collected by analyse statements. Displays partition-level attributes of all LOB data subpartitions in the Describes the partitioning key columns for all partitioned objects in the Displays the object-level partitioning information for all partitioned tables in the Lists subpartitioning key columns for all composite-partitioned tables (and local indexes on composite-partitioned tables) in the Describes all subpartition templates in the Provides the partition-level partitioning information, partition storage parameters and partition statistics determind by analyze statements for all partitions in the Describes, for each tables subpartition, the subpartition name, name of the table and partition to which it belongs and its storage attributes. Seite 16 von 27 Software AG

17 Program Units dba_errors dba_internal_triggers dba_object_size dba_opbindings dba_procedure dba_source dba_trigger_cols dba_triggers Lists current errors on all stored objects in the Describes the internal triggers on all tables in the Shows the sizes, in bytes, of various PL/SQL objects. Displays all operator binding functions and methods. Describes all procedures. Shows the source off all stored objects in the Shows column usage in all triggers. Displays all triggers in the Relational Objects dba_all_tables dba_dependencies dba_sequences dba_synonyms dba_tab_cols dba_tab_columns dba_tables Describes all object and relational tables in the List dependencies to and from objects. Describes all sequences in the List all synonyms in the Displays columns of user s tables, views and clusters. Displays filtering out hidden columns of user s tables, views and clusters. Describes all relational tables in the Replication dba_repaudit_attribute dba_repaudit_column dba_repconflict dba_repcat_exceptions dba_repcatalog dba_repcolumns Provides information about attributes automatically maintained for replication. Provides information about columns in all shadow tables for all replicated tables in the Displays all conflicts for which users have specified resolutions in the Shows the repcat processing exceptions table. Provides information about asynchronous administration requests. Shows replicated top-level columns (table) sorted alphabetically in ascending order. Seite 17 von 27 Seab@er Software AG

18 dba_repcolumns_group dba_repddl dba_repextensions dba_repflavor_columns dba_repflavor_objects dba_repflavors Displays all column groups of replicated tables in the Lists arguments that do not fit in a single repcat log record. Provides information about replication extension request. Displays replicated columns in flavors. Displays replicated objects in flavours. Shows flavours defined for replicated objects groups. dba_repgenerated dba_repgenobjects dba_registered_mview_groups dba_repgroup dba_repgroup_privileges dba_repgrouped_column dba_repkey_columns dba_repobject dba_repparameter_column dba_reppriority dba_reppriority_group dba_repprop dba_repschema dba_repsites dba_represol_stats_control dba_represolution dba_represolution_method dba_represolution_statistics dba_repsites_new Lists objects generated to support replivation. Lists objects generated to support replication. Provides materialized view repgroup registration information. Provides information about all replicated objects groups. Provides information about users who are registered for object group privileges. Displays columns in the all column groups of replicated tables in the Shows primary columns for a table using column-level replication. Provides information about replicated objects. Displays all columns used for resolving conflicts in the Lists values and their corresponding priorities in all priority groups in the Provides information about all priority groups in the Provides propagation information about replicated objects. Provides schemas in n-way replication. Provides n-way replication information. Presents information about statistics collection for conflict resolution for all replicated tables in the Describes all conflict resolutions in the Lists all conflict resolution methods in the Presents statistics for conflict resolutions for all replicated tables in the Provides information about new masters for replication extension. Seite 18 von 27 Seab@er Software AG

19 Resource Manager dba_rsrc_consumer_group_privs dba_rsrc_consumer_groups dba_rsrc_group_mappings dba_rsrc_manager_system_privs dba_rsrc_mapping_priority dba_rsrc_plans dba_rsrc_plan_directives Switches privileges for consumer groups. Lists all the resource consumer groups. Lists all the consumer groups mappings. Displays system privileges for the resource manager. Shows the consumer group mapping attribute priorities. Displays all the resource plans. Displaysall the resource plan directives Scheduler dba_scheduler_global_attribute dba_scheduler_job_args dba_scheduler_job_class dba_scheduler_job_log dba_scheduler_job_run_details dba_scheduler_jobs dba_scheduler_program_args dba_scheduler_programs dba_scheduler_schedules dba_scheduler_window_details dba_scheduler_window_groups dba_scheduler_window_log dba_scheduler_windows dba_scheduler_wingroup_members Shows all scheduler global attributes. Lists all arguments with set values of all scheduler jobs in the Displays all scheduler classes in the Provides logged information for all scheduler jobs. Presents the details of a job run. Shows all scheduler jobs in the Displays all arguments of all scheduler programs in the Lists all scheduler programs in the Shows all schedules in the Presents the datails of a window, Displays all scheduler window groups in the Provides logged information for all scheduler windows. Shows all scheduler windows in the Displays members of all scheduler window groups in the db. Seite 19 von 27 Seab@er Software AG

20 Security dba_col_privs dba_profiles dba_role_privs dba_roles dba_sys_privs dba_tab_privs dba_ts_quotas dba_updatable_columns dba_users role_role_privs role_sys_privs role_tab_privs session_privs session_roles table_privileges Lists all grants on columns in the Displays all profiles and their limits. Shows roles granted to users and roles. Lists all roles in the Shows system privileges granted to users and roles. Displays all grants on objects in the Lists tablespace quotas for all users. Describes DBA-updatable columns. Provides information about all users of the Displays roles granted to roles. Lists system privileges granted to roles. Presents table privileges granted to roles. Displays privileges the user currently has set. Shows roles the user currently has enabled. Displays grants on objects for which the user is the grantor, grantee, owner, or an enabled role or public is the grantee SQL Tuning Set dba_sqlset dba_sqlset_binds dba_sqlset_references dba_sqlset_statements dba_sqltune_binds dba_sqltune_plans dba_sqltune_statistics Displays information about all SQL tuning sets in the Displays the bind values associated with all SQL tuning sets in the Describes whether or not all SQL tuning sets in the database are active. A SQL tuning set cannont be dropped if it is referenced. Displays information about the SQL statements, along with their statistics, that form all SQL tuning set s in the Displays the bind values associated with all tuned SQL statements in the Displays information about the execution plans generated for all SQL statements in the database during a SQl tuning session. Displays statistics associated with all SQL statements in the Seite 20 von 27 Seab@er Software AG