Segments exist even after dropping tables

Oracle 11g on AIX.
I dropped all the tables from my schema, but the following query
shows this:
SQL> select distinct segment_name,segment_type
     from dba_segments
     where owner='ABC'
SEGMENT_NAME                             SEGMENT_TYPE
BIN$hA51n8ndcCjgQ59/4sFwKA==$0           TABLE PARTITION
BIN$hA51n8nccCjgQ59/4sFwKA==$0           INDEX PARTITION
BIN$hA51n8nqcCjgQ59/4sFwKA==$0           TABLE PARTITION
BIN$hA51n8oqcCjgQ59/4sFwKA==$0           TABLE
BIN$hAyiirsGEErgQ59/4sEQSg==$0           TABLE
BIN$hF/vMCFREwbgQ59/4sETBg==$0           TABLE
BIN$hA51n8npcCjgQ59/4sFwKA==$0           INDEX PARTITION
SQL> select owner, table_name
     from dba_part_tables
     where owner='ABC';
OWNER                          TABLE_NAME
ABC                            BIN$hA51n8ndcCjgQ59/4sFwKA==$0
ABC                            BIN$hA51n8nqcCjgQ59/4sFwKA==$0So my question is, why are segments still allocated even after I've dropped
all the tables in my schema?
Is there some command I can use to free them up?
Thanks.

They are just recyclebin objects given to you so that you can recover the dropped tables after the drop command too. Please see,
http://download.oracle.com/docs/cd/E11882_01/server.112/e10595/tables011.htm#ADMIN11681
To drop these objects, you can use
purge recyclebinHTH
Aman....

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Table exists even after dropping

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drop table contacts
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TNAME                          TABTYPE CLUSTERID
BONUS                          TABLE
DEPT                           TABLE
EMP                            TABLE
MLOG$_EMP                      TABLE
RUPD$_EMP                      TABLE
SALGRADE                       TABLE
T                              TABLE
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Elapsed: 00:00:00.04
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Elapsed: 00:00:00.26
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TNAME                          TABTYPE CLUSTERID
BIN$0qXpuvV0RYOELyxiSqkcWQ==$0 TABLE
BONUS                          TABLE
DEPT                           TABLE
EMP                            TABLE
MLOG$_EMP                      TABLE
RUPD$_EMP                      TABLE
SALGRADE                       TABLE
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Hello All,
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<code>
DECLARE @Company VARCHAR(max),
@ID VARCHAR(max),
@NAME VARCHAR(max),
@TABLE_CATALOG VARCHAR(max),
@NAV_DATABASE VARCHAR(max),
@TABLE_NAME VARCHAR(max),
@STATEMENT VARCHAR(max),
@OBJECT_NAME VARCHAR(max),
@OBJECT_NAME_BARE VARCHAR(max),
@OBJECT_TYPE VARCHAR(max);
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SET @NAV_DATABASE = @TABLE_CATALOG
IF @TABLE_CATALOG <> DB_NAME()
BEGIN
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SET @ERRORMSG = 'You are not in the correct database. You specified ' + @TABLE_CATALOG + ' but you are currently in a session for ' + db_name();
RAISERROR(@ERRORMSG, 18, 1);
RETURN;
END;
-- To hold the object names (tables) from Navision
CREATE TABLE #NavisionObjects
[CompanyName]
VARCHAR(max),
[ID] VARCHAR(max),
[Name]
VARCHAR(max),
[TABLE_NAME]
VARCHAR(max)
-- To hold the object names (tables) from SQL only
CREATE TABLE #NavisionSQLObjects
[TABLE_NAME]
VARCHAR(max)
-- Holds the list of dependent objects
CREATE TABLE #DependentObjects
[name] VARCHAR(max),
[type] VARCHAR(max)
WITH T AS (
SELECT [Company Name],[ID],[Name],[Company Name]+'$'+[Name] AS TABLE_NAME
FROM [Object]
WHERE [Name] like '%IT IS%' AND [Company Name]>''
UNION ALL
SELECT [Company Name],[ID],[Name],[Name] AS TABLE_NAME
FROM [Object]
WHERE [Name] like '%IT IS%' AND [Company Name] IN ('',' ')
INSERT INTO #NavisionObjects SELECT [Company Name],[ID],[Name],[TABLE_NAME] FROM T;
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INNER JOIN #NavisionObjects B ON B.[TABLE_NAME]=A.[TABLE_NAME]
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FETCH NEXT FROM cTables INTO @Company,@ID,@TABLE_NAME;
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END TRY
BEGIN CATCH
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END CATCH
FETCH NEXT FROM cTables INTO @Company,@ID,@TABLE_NAME;
END
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FETCH NEXT FROM cdo INTO @OBJECT_NAME, @OBJECT_TYPE;
WHILE (@@FETCH_STATUS = 0)
BEGIN
BEGIN TRY
SET @OBJECT_NAME_BARE =
CASE
WHEN CHARINDEX('dbo',@OBJECT_NAME) = 1
THEN RIGHT(@OBJECT_NAME,LEN(@OBJECT_NAME)-4)
ELSE @OBJECT_NAME
END;
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END TRY
BEGIN CATCH
PRINT 'Could not DROP object [' + @OBJECT_NAME + '] of type ' + @OBJECT_TYPE + ', SQL Error ' + CAST(@@ERROR AS VARCHAR(max));
END CATCH
FETCH NEXT FROM cdo INTO @OBJECT_NAME, @OBJECT_TYPE;
END
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FETCH NEXT FROM cTables INTO @Company,@ID,@TABLE_NAME;
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BEGIN
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BEGIN TRY
SET @STATEMENT = 'TRUNCATE TABLE dbo.[' + @TABLE_NAME + ']';
PRINT @STATEMENT;
EXEC sys.sp_sqlexec @STATEMENT;
END TRY
BEGIN CATCH
PRINT 'Could not truncate table [' + @TABLE_NAME + ']';
END CATCH
BEGIN TRY
SET @STATEMENT = 'DROP TABLE dbo.[' + @TABLE_NAME + ']';
PRINT @STATEMENT;
EXEC sys.sp_sqlexec @STATEMENT;
BEGIN TRY
SET @STATEMENT = 'DELETE FROM [Object] WHERE [Company Name] = ' + CHAR(39) + @Company + CHAR(39) + ' AND [ID] = ' + CHAR(39) + @ID + CHAR(39) + ' AND [TABLE_NAME] = ' + CHAR(39) +
@TABLE_NAME + CHAR(39) ;
EXEC sys.sp_sqlexec @STATEMENT;
print @STATEMENT;
END TRY
BEGIN CATCH
PRINT 'Could not Delete Object [' + @TABLE_NAME + '], from Object table, SQL Error ' + CAST(@@ERROR AS VARCHAR(max));
END CATCH
END TRY
BEGIN CATCH
PRINT 'Could not DROP table [' + @TABLE_NAME + '], SQL Error ' + CAST(@@ERROR AS VARCHAR(max));
END CATCH
FETCH NEXT FROM cTables INTO @Company,@ID,@TABLE_NAME;
END
CLOSE cTables;
DEALLOCATE cTables;
DROP TABLE #DependentObjects;
DROP TABLE #NavisionObjects;
DROP Table #NavisionSQLObjects;
</code>

3701 = ...does not exist or you don't have permission.
Most of the time it means the former. So there are probably some problems in your DROP TABLE statements. Since there is a whole lot about Navision in the script, I decline from trying to figure out what. But I encourage you to study the PRINT statements.
I think that it would be a good idea to include the schema name, in cases these tables are not in dbo after all.
Note: rather than writing:
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write:
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sp_sqlexec is undocumented, use sp_executesql instead.
Erland Sommarskog, SQL Server MVP, [email protected]

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Hi,
I had 168GB of space occupied by recyclebin objects (BIN$...) when i queried on dba_segments, after purging the recyclebin it is showing 0.
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Justin

Segments exist even after dropping tables

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