Important Oracle Scripts for Database Administrators (Part-2)

Show row counts for all tables that have Analyze ON
select owner table_name, num_rows from dba_tables where num_rows > 0;


Select all users active in the System
select sid, serial#,user#, Username, machine, program, server, status, command, type from v$session order by username;


 Show what a current user is doing
select sid, serial#, status, server from v$session where username = 'SHAHEER';


Create count for all tables
select 'Select count(*) from ' ||owner|| '.' ||table_name|| ';' from dba_all_tables order by owner, table_name;


Show all indexes
select owner, index_name, table_type, tablespace_name from dba_indexes where  owner <>'SYSTEM' and owner <> 'DBSNMP' and owner <> 'ORDSYS' and owner <> 'OUTLN' and owner <> 'SYS' and owner <> 'SYSTEM' order by owner, index_name, tablespace_name;


Show all tables
select owner, table_name, table_type, tablespace_name from dba_all_tables where owner <>'SYSTEM' and owner <> 'DBSNMP' and owner <> 'ORDSYS' and owner <> 'OUTLN' and owner <> 'SYS' and owner <> 'SYSTEM' order by owner, table_name, tablespace_name;


Show space used
select Tablespace_Name, /*Tablespace name*/ Owner, /*Owner of the segment*/ Segment_Name, /*Name of the segment*/ Segment_Type, /*Type of segment (ex. TABLE, INDEX)*/ Extents, /*Number of extents in the segment*/ Blocks, /*Number of db blocks in the segment*/ Bytes /*Number of bytes in the segment*/ from DBA_SEGMENTS where owner <>'SYSTEM' and owner <> 'DBSNMP' and owner <> 'ORDSYS' and owner <> 'OUTLN' and owner <> 'SYS' and owner <> 'SYSTEM';


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