Data Discovery - Pre-flight SQL script
Note individual scripts & a tar file to download can also be found in attachment @ http://support.dbvisit.com/hc/en-us/articles/220551807-Data-Discovery-Scripts-Replicate
The following script can help determine if the tables in your schema contain unsupported datatypes:
Prompt Specify owner for the tables that you want to replicate
Prompt Specify table_name(s) for the tables that you want to replicate. % for all.
column owner format A45
set linesize 200
set pagesize 5000
ttitle left '***** Unsupported Data Types *****' skip 2
btitle off
column timendate new_value spooltime noprint
select SYS_CONTEXT('USERENV', 'DB_NAME')||'_'||'unsupported_types'||'_'||to_char(sysdate,'mmddyyyy') timeNdate from dual;
set echo off
spool &spooltime-unsupported_datatypes.txt
select owner, table_name, column_name, data_type
from sys.dba_tab_cols
where data_type not in (
'NUMBER',
'FLOAT',
'BINARY_FLOAT',
'BINARY_DOUBLE',
'ROWID',
'VARCHAR2',
'VARCHAR',
'CHAR',
'NVARCHAR2',
'NCHAR',
'NCHAR2',
'LONG',
'LONG RAW',
'DATE',
'RAW',
'BFILE',
'CLOB',
'BLOB',
'NCLOB'
)
and data_type not like 'INTERVAL%'
and data_type not like 'TIMESTAMP%'
and owner not in (
'XDB','SYS','SYSTEM','SYSMAN','WMSYS','OLAPSYS','MDSYS','APEX_030200','FLOWS_FILES',
'EXFSYS','APPQOSSYS','CTXSYS','ORDDATA','OUTLN','DBSNMP','ORDSYS','DBVREP',
'APEX_040200','LBACSYS','FLOWS_030000','GSMADMIN_INTERNAL')
and table_name not in (select view_name from dba_views)
order by owner,table_name;
spool off
Check for XMLTYPEs stored as other than CLOB type.
-- Run on Source as a pre-check.
REM ***********************************
REM XML Columns with storage != CLOB
REM ***********************************
set linesize 300
column owner format A40
column table_name format A45
column column_name format A30
column storage_type format A15
column timendate new_value spooltime noprint
select SYS_CONTEXT('USERENV', 'DB_NAME')||'_'||'unsupported_types'||'_'||to_char(sysdate,'mmddyyyy') timeNdate from dual;
set echo off
spool &spooltime-xmltype_storage.txt
ttitle on
ttitle left '***** XMLTypes, NOT storage type CLOB *****' skip 2
select owner,table_name,column_name,storage_type
from DBA_xml_tab_cols
where owner not in ('XDB','SYS','SYSTEM','SYSMAN','WMSYS','OLAPSYS','MDSYS','APEX_030200','FLOWS_FILES',
'EXFSYS','APPQOSSYS','CTXSYS','ORDDATA','OUTLN','DBSNMP','ORDSYS','DBVREP',
'APEX_040200','LBACSYS','DMSYS')
and storage_type != 'CLOB'
order by owner,table_name,column_name;
spool off
Unsupported Identity Columns (12c)
-- find_identity_col.sql
--
ttitle left '***** 12c Tables that have an identity feature column *****' skip 2
btitle off
set linesize 150
column owner format A40
column table_name format A40
column column_name format A40
column timendate new_value spooltime noprint
select SYS_CONTEXT('USERENV', 'DB_NAME')||'_'||'unsupported_types'||'_'||to_char(sysdate,'mmddyyyy') timeNdate from dual;
set echo off
spool &spooltime-identity.txt
select owner, table_name, column_name
from ALL_TAB_IDENTITY_COLS
where owner not in (
'XDB','SYS','SYSTEM','SYSMAN','WMSYS','OLAPSYS','MDSYS','APEX_030200',
'FLOWS_FILES','EXFSYS','APPQOSSYS','CTXSYS','ORDDATA','OUTLN','DBSNMP',
'ORDSYS','DBVREP','APEX_040200','LBACSYS')
and table_name not like 'BIN%'
order by 1,2,3;
spool off;
Unsupported LOB options (11g SecureFiles):
Prompt Specify owner for the tables that you want to replicate
Prompt Specify table_name(s) for the tables that you want to replicate. % for all.
column owner format A45
set linesize 200
set pagesize 5000
column timendate new_value spooltime noprint
select SYS_CONTEXT('USERENV', 'DB_NAME')||'_'||'unsupported_types'||'_'||to_char(sysdate,'mmddyyyy') timeNdate from dual;
set echo off
spool &spooltime-LOB_columns.txt
select owner, table_name, column_name
from dba_lobs
where
owner not in (
'XDB','SYS','SYSTEM','SYSMAN','WMSYS','OLAPSYS','MDSYS','APEX_030200','FLOWS_FILES',
'EXFSYS','APPQOSSYS','CTXSYS','ORDDATA','OUTLN','DBSNMP','ORDSYS','DBVREP','APEX_040200','LBACSYS')
and encrypt not in ('NO','NONE')
or compression not in ('NO','NONE')
or deduplication not in ('NO','NONE')
order by owner);
spool off
Redo Volume Trending Report :
set linesize 200
set echo off
column timendate new_value spooltime noprint
select SYS_CONTEXT('USERENV', 'DB_NAME')||'_'||'unsupported_types'||'_'||to_char(sysdate,'mmddyyyy') timeNdate from dual;
set echo off
spool &spooltime-redo_estimate.txt
select name,dbid, database_role, log_Mode from v$database;
select instance_name from v$instance;
ALTER SESSION SET NLS_DATE_FORMAT = 'YYYY MM DD';
ttitle left '***** Number of redo files for previous 7 days by hour *****' skip 2
btitle off
SELECT to_date(first_time) DAY,
to_char(sum(decode(to_char(first_time,'HH24'),'00',1,0)),'9999') "00",
to_char(sum(decode(to_char(first_time,'HH24'),'01',1,0)),'9999') "01",
to_char(sum(decode(to_char(first_time,'HH24'),'02',1,0)),'9999') "02",
to_char(sum(decode(to_char(first_time,'HH24'),'03',1,0)),'9999') "03",
to_char(sum(decode(to_char(first_time,'HH24'),'04',1,0)),'9999') "04",
to_char(sum(decode(to_char(first_time,'HH24'),'05',1,0)),'9999') "05",
to_char(sum(decode(to_char(first_time,'HH24'),'06',1,0)),'9999') "06",
to_char(sum(decode(to_char(first_time,'HH24'),'07',1,0)),'9999') "07",
to_char(sum(decode(to_char(first_time,'HH24'),'08',1,0)),'9999') "08",
to_char(sum(decode(to_char(first_time,'HH24'),'09',1,0)),'9999') "09",
to_char(sum(decode(to_char(first_time,'HH24'),'10',1,0)),'9999') "10",
to_char(sum(decode(to_char(first_time,'HH24'),'11',1,0)),'9999') "11",
to_char(sum(decode(to_char(first_time,'HH24'),'12',1,0)),'9999') "12",
to_char(sum(decode(to_char(first_time,'HH24'),'13',1,0)),'9999') "13",
to_char(sum(decode(to_char(first_time,'HH24'),'14',1,0)),'9999') "14",
to_char(sum(decode(to_char(first_time,'HH24'),'15',1,0)),'9999') "15",
to_char(sum(decode(to_char(first_time,'HH24'),'16',1,0)),'9999') "16",
to_char(sum(decode(to_char(first_time,'HH24'),'17',1,0)),'9999') "17",
to_char(sum(decode(to_char(first_time,'HH24'),'18',1,0)),'9999') "18",
to_char(sum(decode(to_char(first_time,'HH24'),'19',1,0)),'9999') "19",
to_char(sum(decode(to_char(first_time,'HH24'),'20',1,0)),'9999') "20",
to_char(sum(decode(to_char(first_time,'HH24'),'21',1,0)),'9999') "21",
to_char(sum(decode(to_char(first_time,'HH24'),'22',1,0)),'9999') "22",
to_char(sum(decode(to_char(first_time,'HH24'),'23',1,0)),'9999') "23"
from
sys.v$log_history
where to_date(first_time) > sysdate -8
GROUP by
to_char(first_time,'YYYY-MON-DD'), to_date(first_time)
order by to_date(first_time)
/
rem Size of logs to help do the math in bytes.
ttitle left '***** Size of redo logs. Multiple number of logs per hour by Size of Redo to get volume in Meg/Hr *****' skip 2
btitle off
select group#,members,archived, status, trunc((bytes)/1000000) Size_of_Redo_Megbytes
from sys.v$log
/
spool off
exit
Tables with no Primary or Unique Keys
set linesize 200
set pagesize 20000
column owner format A40
column table_name format A60
column timendate new_value spooltime noprint
select SYS_CONTEXT('USERENV', 'DB_NAME')||'_'||'unsupported_types'||'_'||to_char(sysdate,'mmddyyyy') timeNdate from dual;
set echo off
ttitle left '***** Tables without PK or UK output to nokeys.lst *****' skip 2
btitle off
spool &spooltime-noUniqKeys.txt
select name,dbid, database_role, log_Mode from v$database;
select instance_name from v$instance;
select owner, table_name
from dba_tables
where owner not in (
'XDB','SYS','SYSTEM','SYSMAN','WMSYS','OLAPSYS','MDSYS','APEX_030200','FLOWS_FILES',
'EXFSYS','APPQOSSYS','CTXSYS','ORDDATA','OUTLN','DBSNMP','ORDSYS','DBVREP','APEX_040200','LBACSYS')
and table_name not like 'BIN%'
and (owner, table_name) not in (
select owner, table_name
from dba_constraints
where constraint_type in ( 'P', 'U' )
and owner not in ('XDB','SYS','SYSTEM','SYSMAN','WMSYS','OLAPSYS','MDSYS','APEX_030200','FLOWS_FILES',
'EXFSYS','APPQOSSYS','CTXSYS','ORDDATA','OUTLN','DBSNMP','ORDSYS','DBVREP','APEX_040200','LBACSYS')
and table_name not like 'BIN%')
order by owner, table_name
/
spool off
Check for DELETE Cascade constraints
-- Run on Source & post imported target db
column timendate new_value spooltime noprint
select SYS_CONTEXT('USERENV', 'DB_NAME')||'_'||'unsupported_types'||'_'||to_char(sysdate,'mmddyyyy') timeNdate from dual;
set echo off
spool &spooltime-del_constraints.txt
column owner format A35
set pagesize 4000
set linesize 132
select owner, constraint_name, delete_rule,status
FROM dba_constraints
where delete_rule = 'CASCADE'
and owner not in
(
'XDB','SYS','SYSTEM','SYSMAN','WMSYS','OLAPSYS','MDSYS','APEX_030200','FLOWS_FILES',
'EXFSYS','APPQOSSYS','CTXSYS','ORDDATA','OUTLN','DBSNMP','ORDSYS','DBVREP','APEX_040200','LBACSYS')
order by 1,2;
spool off
Check for Compressed tables (partitioned & non-partitioned)
-- Run on Source as a pre-check
REM ****************************
REM Compressed table list
REM ****************************
set linesize 200
column timendate new_value spooltime noprint
select SYS_CONTEXT('USERENV', 'DB_NAME')||'_'||'unsupported_types'||'_'||to_char(sysdate,'mmddyyyy') timeNdate from dual;
set echo off
spool &spooltime-compressed_objs.txt
ttitle left '***** Table Compression Assessment *****' skip 2
btitle off
SELECT owner, table_name, compression
FROM dba_tables
where owner not in ('XDB','SYS','SYSTEM','SYSMAN','WMSYS','OLAPSYS','MDSYS','APEX_030200','FLOWS_FILES',
'EXFSYS','APPQOSSYS','CTXSYS','ORDDATA','OUTLN','DBSNMP','ORDSYS','DBVREP',
'APEX_040200','LBACSYS')
and compression = 'ENABLED'
order by 1,2;
ttitle left '***** Partitioned Table Compression Assessment *****' skip 2
btitle off
SELECT table_owner,table_name, partition_name, compression
from dba_tab_partitions
where table_owner not in ('XDB','SYS','SYSTEM','SYSMAN','WMSYS','OLAPSYS','MDSYS','APEX_030200','FLOWS_FILES',
'EXFSYS','APPQOSSYS','CTXSYS','ORDDATA','OUTLN','DBSNMP','ORDSYS','DBVREP',
'APEX_040200','LBACSYS')
and compression = 'ENABLED'
order by 1,2,3;
spool off
Check for Encryption & encrypted columns
-- Run on Source as a pre-check
REM ****************************
REM *** Encryption
REM ****************************
column timendate new_value spooltime noprint
select SYS_CONTEXT('USERENV', 'DB_NAME')||'_'||'unsupported_types'||'_'||to_char(sysdate,'mmddyyyy') timeNdate from dual;
set echo off
spool &spooltime-encrytion_chk.txt
ttitle left '***** Encryption Assessment *****' skip 2
btitle off
select * from dict where lower(table_name) like '%encrypted%';
select owner, table_name, COLUMN_NAME, ENCRYPTION_ALG
from DBA_ENCRYPTED_COLUMNS
where owner not in ('XDB','SYS','SYSTEM','SYSMAN','WMSYS','OLAPSYS','MDSYS','APEX_030200','FLOWS_FILES',
'EXFSYS','APPQOSSYS','CTXSYS','ORDDATA','OUTLN','DBSNMP','ORDSYS','DBVREP',
'APEX_040200','LBACSYS')
order by 1,2,3;
spool off