Latin America Tour 2019 - 18c and 19c featues

Copyright © 2018, Oracle and/or its affiliates. All rights reserved.
bienvenido

Lo siento, no hablo español :-(

But I will do my best to help
Pero haré todo lo posible para ayudar

Cool things about 18c and 19c
Connor McDonald
Database Advocate
geniales cosas sobre 18c y 19c

Connor McDonald

Copyright © 2018, Oracle and/or its affiliates. All rights reserved. |Copyright © 2018, Oracle and/or its affiliates. All rights reserved. |
6

7

Copyright © 2018, Oracle and/or its affiliates. All rights reserved. |
Me
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400+ posts mainly on database & development
250 technical videos, new uploads every week
Más de 400 publicaciones principalmente en bases de datos y desarrollo
250 videos técnicos, nuevas cargas cada semana

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Copyright © 2018, Oracle and/or its affiliates. All rights reserved. | 13
why me ?

why you ?

19! 18!
18! 19!
19!

reality :-(
21
realidad

SQL> select * from v$version;
BANNER
----------------------------------------------------------
Oracle8i Enterprise Edition Release 8.1.7.4.0 - Production
PL/SQL Release 8.1.7.4.0 - Production
CORE 8.1.7.0.0 Production
TNS for HPUX: Version 8.1.7.4.0 - Production
NLSRTL Version 3.4.1.0.0 - Production

BANNER
----------------------------------------------------------

you still should be here
27
tú todavía debería estar aquí

there's a lot in 18/19
hay una mucho en 18/19

get started right now
Empezar ahora mismo

install nothing
instalar nada

https://cloud.oracle.com/tryit

install a little bit
instalar un poco

https://bit.ly/prebuiltora

install lots :-)
instalar un montón

http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html

install lots :-)
instalar un montón
fácil

install lots :-)
instalar un montón
muy fácil

coming soon
próximamente

install lots :-)
instalar un montón
muy muy fácil

1) gold image service
servicio de imagen de oro

2) read-only ORACLE_HOME

3) Oracle database in Docker
https://bit.ly/oradocker

licensing
licenciamiento

degustación

UNZIP INSTALL
RPM INSTALL
DOCKER
READ-ONLY
GOLD IMAGE

external tables
mesas externas

ext_emp

SQL> create table ext_emp (
2 empno number(4),
3 ename varchar2(10),
4 job varchar2(9),
5 mgr number(4),
6 hiredate date,
7 sal number(7,2),
8 comm number(7,2),
9 deptno number(2)
10 )
11 organization external
12 ( type oracle_loader
13 default directory TMP
14 access parameters
15 ( records delimited by newline
16 fields terminated by ','
17 missing field values are null
18 ( empno,ename,job,mgr,hiredate,sal,comm,deptno )
19 )
20 location ('emp20161001.dat'));
Table created.

SQL> select * from ext_emp;
select * from ext_emp
*
ERROR at line 1:
ORA-29913: error in executing ODCIEXTTABLEFETCH callout
ORA-30653: reject limit reached

easy fix
fácil arreglo

SQL> create table ext_emp (
2 empno number(4),
...
18 ( empno,ename,job,mgr,hiredate,sal,comm,deptno )
19 )
20 location ('emp20161001.dat'))
21 REJECT LIMIT UNLIMITED;
Table created.

quick revision 12.2
revisión rápida

query time modification
consulta modificación de hora

SQL> select * from ext_emp
2 external modify ( reject limit unlimited );
EMPNO ENAME JOB MGR HIREDATE SAL
---------- ---------- --------- ---------- --------- ---------- ---
7499 ALLEN SALESMAN 7698 20-FEB-81 1600
7521 WARD SALESMAN 7698 22-FEB-81 1250
7566 JONES MANAGER 7839 02-APR-81 2975
...
7902 FORD ANALYST 7566 03-DEC-81 3000
7934 MILLER CLERK 7782 23-JAN-82 1300
13 rows selected.

SQL> select * from ext_emp
2 external modify ( location ('emp20161002.dat') );
EMPNO ENAME JOB MGR HIREDATE SAL
---------- ---------- --------- ---------- --------- ---------- ---
7902 FORD ANALYST 7566 03-DEC-81 3000
7934 MILLER CLERK 7782 23-JAN-82 1300
7566 JONES MANAGER 7839 02-APR-81 2975
...
7499 ALLEN SALESMAN 7698 20-FEB-81 1600
7521 WARD SALESMAN 7698 22-FEB-81 1250
8 rows selected.

select * from ext_tab external modify (
[ default directory ]
[ location ]
[ access parameters ]
[ reject limit ]
);

18c+

zero ddl option
opción cero ddl

SQL> select * from external (
2 empno number(4),
3 ename varchar2(10),
4 ...
18 ( empno,ename,job,mgr,...)
19 )
20 location ('emp20161001.dat')
21 );

global temporary tablesprivate
tablas temporales globales
privado

SQL server etc

read locking
leer bloqueo

SELECT empno, ename, job
INTO #HighPaidJobs
FROM emp
WHERE sal > 3000

migration to Oracle difficult
migración a Oracle difícil

SQL> create private temporary table ORA$PTT_MY_TT
2 ( empno int , ename varchar2(20)) ;
Table created.
SQL> insert into ORA$PTT_MY_TT
2 select empno, ename
3 from scott.emp
4 where sal > 3000;
1 row created.
SQL> select * from ORA$PTT_MY_TT;
EMPNO ENAME
---------- --------------------
7839 KING

"um...looks the same as before"
"er ... se ve igual que antes

SQL> commit;
Commit complete.
select * from ORA$PTT_MY_TT
*
ERROR at line 1:
ORA-00942: table or view does not exist

it's really temporary
es muy temporal

2 ( empno int , ename varchar2(20)) ;
Table created.
SQL> select *
2 from user_tables
3 where table_name = 'ORA$PTT_MY_TT' ;
no rows selected
SQL> select *
2 from all_objects
3 where object_name = 'ORA$PTT_MY_TT' ;
no rows selected

2 ( empno , ename )
3 on commit preserve definition
4 as select 123, 'Larry' from dual;
EMPNO ENAME
---------- -----
123 Larry
SQL> commit;
EMPNO ENAME
---------- -----
123 Larry

it's really private
es muy privado

2 ( empno int ,
3 ename varchar2(20)) ;
Table created.
2 ( deptno int ,
3 dname varchar2(20),
4 bonus int,
5 logo blob) ;
Table created.

it's all in the name !
se trata del nombre

SQL> create private temporary table MY_TT ( x int ) ;
create private temporary table MY_TT ( x int )
*
ERROR at line 1:
ORA-00903: invalid table name
SQL> show parameter private
NAME TYPE VALUE
------------------------------- ----------- -----------
private_temp_table_prefix string ORA$PTT_

remember temporary undo?
te acuerdas de temporary undo

SQL> insert into t values ('Hello','There');
insert into t values ('Hello','There')
*
ERROR at line 1:
ORA-16000: database open for read-only access

Active Data Guard

SQL> alter session set temp_undo_enabled=true;
Session altered.
SQL> create global temporary table GTT_REPORT_STAGING
2 ( ... );
SQL> insert into GTT_REPORT_STAGING
2 select ...
SQL> select * from GTT_REPORT_STAGING join FIN_RESULTS
2 ...

87
100%
% of people that
found this useful
% de personas que
esto me pareció útil

19c

DML redirect
Redireccionamiento DML

Standby Primary
SQL> insert into REPORTING_STAGING
2 select * from ...

bonus DataGuard

we've all done this :-)
todos hemos hecho esto

Standby Primary

18c

RMAN> connect target sys/oracle@MY_STANDBY
RMAN> connect auxiliary sys/oracle@MY_PRIMARY
RMAN> recover database from service PRIMARY;
Starting recover at 12.10.2018 14:05:17
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=187 device type=DISK
...
...

bonus bonus DataGuard !

SQL> alter database force logging;
97

19c

SQL> alter database set standby nologging for data availability;
99
deferred commit

SQL> alter database set standby nologging for load performance;
100
deferred transmission

a nice form of murder :-)
asesinato realizado muy bien

aka, #1 reason for upgrading to 18c

SQL> insert into MY_TABLE
2 select *
3 from MY_HUGE_GREAT_FAT_TABLE;
104

2 select *
3 from MY_HUGE_GREAT_FAT_TABLE
4 where LOAD_DATE > sysdate - 1;
106

SQL> alter system kill session '123,456' immediate
107

18c

SQL> alter system kill cancel sql '123,456';
110

speaking of "#1 reason"

#1 reason for upgrading to 19c

SQL> select deptno, ename
2 from emp
3 order by 1,2;
DEPTNO ENAME
---------- ----------
10 CLARK
10 KING
10 MILLER
20 ADAMS
20 FORD
20 JONES
20 SCOTT
20 SMITH
30 ALLEN
30 BLAKE
30 JAMES
30 MARTIN
30 TURNER
30 WARD
114

DEPTNO MEMBERS
---------- -------------------------------------
10 CLARK,KING,MILLER
20 SMITH,JONES,SCOTT,ADAMS,FORD
30 ALLEN,WARD,MARTIN,BLAKE,TURNER,JAMES
115

11g
121

SQL> select deptno,
2 listagg( ename, ',')
3 within group (order by empno) members
4 from emp
5 group by deptno;
DEPTNO MEMBERS
---------- -----------------------------------------
10 CLARK,KING,MILLER
20 SMITH,JONES,SCOTT,ADAMS,FORD
30 ALLEN,WARD,MARTIN,BLAKE,TURNER,JAMES
122

except
123
excepción

SQL> select deptno
2 listagg(job,',') within group ( order by job) as jobs
3 from scott.emp
4 group by deptno
5 order by 1;
DEPTNO JOBS
--------- --------------------------------------------------
10 CLERK,MANAGER,PRESIDENT
20 ANALYST,ANALYST,CLERK,CLERK,MANAGER
30 CLERK,MANAGER,SALESMAN,SALESMAN,SALESMAN,SALESMAN
124

SQL> select owner
2 listagg(object_type,',') within group
3 ( order by object_id ) as types
4 from all_ojects
5 group by owner
6 order by 1;
ERROR:
ORA-01499: result of string concatenation is too long
125

19c
126

SQL> select deptno
2 listagg(distinct job,',') within group ( order by job) as jobs
3 from scott.emp
4 group by deptno
5 order by 1;
DEPTNO JOBS
--------- --------------------------------------------------
10 CLERK,MANAGER,PRESIDENT
20 ANALYST,CLERK,MANAGER
30 CLERK,MANAGER,SALESMAN
127

back to #1 reason for upgrading to 19c
otra razón para actualizar a 19c

back to bad SQL
hablar de nuevo sobre SQL travieso

maybe murder won't help
tal vez el asesinato no ayudará

132
BAD
SQL

bad SQL just keeps coming back...
SQL malo sigue volviendo

19c

automatic quarantine of bad SQL
elapsed time
resource consumption
cuarentena automática de SQL incorrecto
consumo de recursos
tiempo transcurrido

error on subsequent execution
error en la ejecución posterior

1) alerts to administrator
alertas al administrador

future
futura

2) automated historical diagnosis/repair
arreglar automáticamente

maybe murder wasn't the right thing
tal vez el asesinato no fue correcto

2 select *
142

2 select *
3 from MY_HUGE_GREAT_FAT_TABLE w
144
/*+ INDEX(W CUST_DATE_IX) */ *

18c

SQL> alter system set optimizer_ignore_hints = true
146

coolguay

maybe it was the opposite ?
tal vez fue lo contrario?

2 select *
4 where LOAD_DATE > sysdate - 1/24;
150

2 select *
4 where LOAD_DATE > sysdate - 1/24;
152
need an index?
necesita un índice?

but what is best practice ?
Pero cuál es la mejor práctica?

1) monitor the SQL workload
AWR / Top SQL
supervisar la carga de trabajo de SQL

2) consider indexes per SQL
leading columns
considerar índices
columnas principales

3) consolidate tables/columns
(a)
(a,b)
(a,b,c)
consolidar tablas / columnas

4) create nosegment/unusable
dictionary only
solo diccionario

5) check "virtual" explain plan
cost/cardinality
plan de explicación "virtual"

6) create true index (as invisible)
no impact risk
sin riesgo de impacto

7) test execute each SQL for benefit
response time/IO
ejecutar cada SQL para beneficio

8) decide on each index worth
decidir sobre cada valor del índice

9) SPM quarantine the others
no regression
SPM pone en cuarentena
sin regresión

10) make new indexes visible
hacer nuevos índices visibles

we're done!
hemos terminado!

go to step 1
ir al paso 1

19c

automatic indexes
índices automático

we follow best practice
usamos las mejores prácticas

only need to set preferences
solo necesita establecer preferencias

AUTO_INDEX_EXCLUDE_SCHEMA
AUTO_INDEX_REPORT_RETENTION
AUTO_INDEX_RETENTION_FOR_AUTO
AUTO_INDEX_RETENTION_FOR_MANUAL
AUTO_INDEX_DEFAULT_TABLESPACE
AUTO_INDEX_TEMP_TABLESPACE
AUTO_INDEX_MODE
AUTO_INDEX_SPACE_BUDGET

expect this to evolve over time
esperar que esto evolucione con el tiempo

statistics

what most of us do
esto es lo que hace la mayoría de la gente

TIME
Gather
Stale
overnight

19c

Conventional
DML
Real-time
Statistics
Gathered Statistics
Lightweight
Statistics

real time statistics
DML driven

only "cheap" essential statistics
high/low values
row/column counts
solo estadísticas esenciales "baratas"

lightweight rapid gather
resource manager
reunión rápida ligera

revisit: security
seguridad

18c

better schema management
mejor gestión de esquemas

SQL> create user data_owner
2 no authentication;

"I already do this"
"Ya hago esto"

SQL> alter user data_owner account lock
User altered.

security risk
riesgo de seguridad

SQL> conn wmsys/wmsys
ERROR:
ORA-28000: the account is locked
Warning: You are no longer connected to ORACLE.

schema only accounts

SQL> conn data_owner/random_password
ORA-01017: invalid username/password; logon denied

bonus security

DBSAT

10.2 and above

THIS

IS

THE

BIG

ONEeste es el grande

18c XE
204

100% free

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d) puede copiar y distribuir los programas a sus licenciatarios siempre que cada uno de
los licenciatarios acepte los términos de este Acuerdo.
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12 GB of user data
2 GB of database RAM
2 CPU threads
3 Pluggable Databases

"Is it feature limited?"
son las funciones restringidas

Oracle Multitenant
SQLJ
Online index rebuild
Online table reorg
Online table redefinition
Trial recovery
Fast start recovery
Flashback table
Flashback query
Flashback database
Advanced Queueing
Network Compression
Client side result cache
Server side result cache
Adaptive plans
In-memory column store
In-memory aggregation
Attribute Clustering
Column encryption
Tablespace encryption
Advanced Security
Database Vault
Label Security
AD users
Privilege Analysis
Real Application Security
Data Redaction
Virtual Private Database
Spatial
Graph
Partitioning
Advanced Analytics
Advanced Compression
Advanced Index Compression
Transportable Tablespace
Query Rewrite

EE plus most extra cost options

wrap up

there's a lot in 18/19
Hay mucho

lots not covered today
mucho ha sido omitido

OOW

Thank you!
youtube bit.ly/youtube-connor
blog bit.ly/blog-connor
twitter bit.ly/twitter-connor
Gracias!
slideshare bit.ly/slideshare-connor

Latin America Tour 2019 - 18c and 19c featues

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Latin America Tour 2019 - 18c and 19c featues