A partition tab is needed in the schema-table browser and it's missing

Question

After a first sight with the product, I couldn't find a partition tab in the schema-table browser.
For those having partitions it is absolutely essential.

Answer 1

It's easy to add,
create a file that has the following content
<?xml version="1.0" encoding="UTF-8"?>
<items>
<item type="sharedQuery" id="PartSubPartkeys">
<query minversion="9">
     <sql>
     <![CDATA[ select 'PARTITION KEYS' PARTITION_LEVEL,substr(sys_connect_by_path(column_name,','),2) "PARTITION KEYS"
               from (select column_name, column_position
               from all_part_key_columns
               where owner = :OBJECT_OWNER
               and name = :OBJECT_NAME
               and object_type='TABLE' )
               start with column_position=1
               connect by column_position=prior column_position+1
               union all
               select 'SUBPARTITION KEYS' ,substr(sys_connect_by_path(column_name,','),2)
               from (select column_name, column_position
               from all_subpart_key_columns
               where owner = :OBJECT_OWNER
               and name = :OBJECT_NAME
               and object_type='TABLE' )
               start with column_position=1
               connect by column_position=prior column_position+1]]></sql>
     </query>
     </item>
<item type="sharedQuery" id="PartSubPartkeysFI">
<query minversion="9">
     <sql>
     <![CDATA[ select 'PARTITION KEYS' PARTITION_LEVEL,substr(sys_connect_by_path(column_name,','),2) "PARTITION KEYS"
               from (select column_name, column_position
               from all_part_key_columns
               where owner = :OBJECT_OWNER
               and name = (select table_name
                         from all_indexes
                         where index_name=:OBJECT_NAME
                         and owner=:OBJECT_OWNER)
               and object_type='TABLE' )
               start with column_position=1
               connect by column_position=prior column_position+1
               union all
               select 'SUBPARTITION KEYS' ,substr(sys_connect_by_path(column_name,','),2)
               from (select column_name, column_position
               from all_subpart_key_columns
               where owner = :OBJECT_OWNER
               and name =(select table_name
                         from all_indexes
                         where index_name=:OBJECT_NAME
                         and owner=:OBJECT_OWNER)
               and object_type='TABLE' )
               start with column_position=1
               connect by column_position=prior column_position+1]]></sql>
     </query>
     </item>
<item type="sharedQuery" id="Partitions">
<query minversion="9">
     <sql>
     <![CDATA[ select partition_name,  num_rows,AVG_ROW_LEN, blocks ,LAST_ANALYZED from all_tab_partitions where table_owner = :OBJECT_OWNER and table_name = :OBJECT_NAME order by partition_position]]></sql>
     </query>
     </item>
<item type="sharedQuery" id="SubPartitions">
<query minversion="9">
     <sql>
     <![CDATA[ select subpartition_name, partition_name,  num_rows,AVG_ROW_LEN, blocks ,LAST_ANALYZED from all_tab_subpartitions where table_owner = :OBJECT_OWNER and table_name = :OBJECT_NAME order by partition_name,subpartition_position]]></sql>
     </query>
     </item>
<item type="editor" node="TableNode" >
<title><![CDATA[Partitions/SubPartitions]]></title>
<query id="PartSubPartkeys" />
<subquery>
<title>Partitions/SubPartition</title>
<query>
<sql><![CDATA[select partition_position, partition_name "Partition/Subpartition",  tablespace_name,high_value,compression,num_rows,AVG_ROW_LEN, blocks ,LAST_ANALYZED from all_tab_partitions where table_owner = :OBJECT_OWNER and table_name = :OBJECT_NAME and 'PARTITION KEYS'=:PARTITION_LEVEL
         union all
         select subpartition_position, partition_name||'/'||subpartition_name, tablespace_name,high_value,compression,num_rows,AVG_ROW_LEN, blocks ,LAST_ANALYZED from all_tab_subpartitions where table_owner = :OBJECT_OWNER and table_name = :OBJECT_NAME and 'SUBPARTITION KEYS' =:PARTITION_LEVEL
         order by 2]]></sql>
</query>
</subquery>
</item>
<item type="editor" node="MViewNode" >
<title><![CDATA[Partitions/SubPartitions]]></title>
<query id="PartSubPartkeys" />
<subquery>
<title>Partitions/SubPArtition</title>
<query>
<sql><![CDATA[select partition_position, partition_name "Partition/Subpartition",  tablespace_name,
         high_value,compression,num_rows,AVG_ROW_LEN, blocks ,LAST_ANALYZED
         from all_tab_partitions where table_owner = :OBJECT_OWNER and table_name = :OBJECT_NAME and 'PARTITION KEYS'=:PARTITION_LEVEL
         union all
         select subpartition_position, partition_name||'/'||subpartition_name, tablespace_name,high_value,
         compression,num_rows,AVG_ROW_LEN, blocks ,LAST_ANALYZED
         from all_tab_subpartitions where table_owner = :OBJECT_OWNER and table_name = :OBJECT_NAME and 'SUBPARTITION KEYS' =:PARTITION_LEVEL
         order by 2]]></sql>
</query>
</subquery>
</item>
<item type="editor" node="IndexNode" >
<title><![CDATA[Partitions/SubPartitions]]></title>
<query id="PartSubPartkeysFI" />
<subquery>
<title>Partitions/SubPArtition</title>
<query>
<sql><![CDATA[select partition_position, partition_name "Partition/Subpartition",  tablespace_name,high_value,compression,
         Leaf_Blocks, Distinct_Keys, clustering_factor ,LAST_ANALYZED
         from all_ind_partitions where index_owner = :OBJECT_OWNER and index_name = :OBJECT_NAME
         and 'PARTITION KEYS'=:PARTITION_LEVEL
         union all
         select subpartition_position, partition_name||'/'||subpartition_name, tablespace_name,high_value,compression,
         Leaf_Blocks, Distinct_Keys, clustering_factor ,LAST_ANALYZED
         from all_ind_subpartitions
         where index_owner = :OBJECT_OWNER
         and index_name = :OBJECT_NAME
         and 'SUBPARTITION KEYS'=:PARTITION_LEVEL
         order by 2]]></sql>
</query>
</subquery>
</item>
<item type="editor" node="TableNode">
<title><![CDATA[Unabridged SQL]]></title>
<query>
<sql><![CDATA[select :OBJECT_OWNER OOWNER, :OBJECT_NAME ONAME, 'TABLE' OTYPE from dual union all select owner,index_name,'INDEX' from all_indexes where table_owner= :OBJECT_OWNER and table_name=:OBJECT_NAME ]]></sql>
</query>
<subquery type="code">
<query>
<sql><![CDATA[select dbms_metadata.get_ddl(:OTYPE,:ONAME, :OOWNER) "SQL Statements" from dual]]></sql>
</query>
</subquery>
</item>
<item type="editor" node="TableNode">
<title><![CDATA[Partition Columns Statistics]]></title>
<query id="Partitions" />
<subquery>
<query>
     <sql>
     <![CDATA[ select COLUMN_NAME, NUM_DISTINCT, LOW_VALUE, HIGH_VALUE, DENSITY, NUM_NULLS
         from all_part_col_statistics where owner = :OBJECT_OWNER
         and table_name = :OBJECT_NAME
         and partition_name= :PARTITION_NAME
         order by column_name]]></sql>
</query>
</subquery>
</item>
<item type="editor" node="TableNode">
<title><![CDATA[SUBPartition Columns Statistics]]></title>
<query id="SubPartitions" />
<subquery>
<query>
     <sql>
     <![CDATA[ select COLUMN_NAME, NUM_DISTINCT, LOW_VALUE, HIGH_VALUE, DENSITY, NUM_NULLS from all_subpart_col_statistics where owner = :OBJECT_OWNER and table_name = :OBJECT_NAME and subpartition_name=:SUBPARTITION_NAME order by column_name]]></sql>
     </query>
</subquery>
</item>
<item type="editor" node="MViewNode">
<title><![CDATA[Partition Columns Statistics]]></title>
<query id="Partitions" />
<subquery>
<query>
     <sql>
     <![CDATA[ select COLUMN_NAME, NUM_DISTINCT, LOW_VALUE, HIGH_VALUE, DENSITY, NUM_NULLS
         from all_part_col_statistics where owner = :OBJECT_OWNER
         and table_name = :OBJECT_NAME
         and partition_name= :PARTITION_NAME
         order by column_name]]></sql>
</query>
</subquery>
</item>
<item type="editor" node="MViewNode">
<title><![CDATA[SUBPartition Columns Statistics]]></title>
<query id="SubPartitions" />
<subquery>
<query>
     <sql>
     <![CDATA[ select COLUMN_NAME, NUM_DISTINCT, LOW_VALUE, HIGH_VALUE, DENSITY, NUM_NULLS from all_subpart_col_statistics where owner = :OBJECT_OWNER and table_name = :OBJECT_NAME and subpartition_name=:SUBPARTITION_NAME order by column_name]]></sql>
     </query>
</subquery>
</item>
<item type="editor" node="SchemaFolder" minversion="10.1">
<title><![CDATA[Sessions]]></title>
<query>
<sql><![CDATA[select sid,serial#,program,last_call_et,machine, status, sql_hash_value shv,sql_child_number scn
         from v$session
         order by 1]]></sql>
</query>
<subquery>
<query>
<sql><![CDATA[select * from table(dbms_xplan.display_cursor(:SHV,:SCN))]]></sql>
</query>
</subquery>
</item>
</items>
and add the following line to your ide.conf file (in jdev/bin directory in the sqldev install dir)
AddVMOption -Draptor.user.editors=fullpathofthefile(dir and name)
and restart, you'll get several additional tabs to the ones displayed for tables.
enjoy