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© 2017 IBM Corporation What's New in DB2 for i (in June, 2017) Sarah Mackenzie [email protected] For…

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Page 1: What's New in DB2 for i (in June, 2017)s_New_in_DB2_for_i...DB2 SMP & DB2 Multisystem 7.2 –TR4 7.3 –GA 7.2 –TR5 7.3 –TR1 7.2 –TR6 7.3 –TR2 Enhancements in 1Q/2017 • Performance

© 2017 IBM Corporation

What's New in DB2 for i(in June, 2017)

Sarah Mackenzie

[email protected]

For…

Page 2: What's New in DB2 for i (in June, 2017)s_New_in_DB2_for_i...DB2 SMP & DB2 Multisystem 7.2 –TR4 7.3 –GA 7.2 –TR5 7.3 –TR1 7.2 –TR6 7.3 –TR2 Enhancements in 1Q/2017 • Performance

© 2017 IBM Corporation

2

DB2 for i

• Standard compliant• Secure• Scalable• Functionally Advanced• Excellent Performance • Easier to use• Easier to maintain

V5R2

SQE Stage 1

IASPs

Identity columns

Savepoints

UNION in views

Scalar subselect

UDTFs

DECLARE GLOBAL TEMPORARY TABLE

Catalog views

V5R3

Partitioned tables

UFT-8 & UTF-16

ICU sort sequence

MQTs

Sequences

Implicit char/numeric

BINARY / VARBINARY

GET DIAGNOSTICS

DRDA Alias

DECIMAL(63)

SQE Stage 3

Ragged SWA

QDBRPLAY

Online Reorganize

7.1

XML Support

Encryption enhancements (FIELDPROCs)

Result set support in embedded SQL

CURRENTLY COMMITTED

MERGE

Global variables

Array support in procedures

Three-part names and aliases

SQE Logical file support

SQE Adaptive Query Processing

EVI enhancements

Inline functions

CREATE OR REPLACE

Partition table enhancements

Expressions in CALL

TR-timed enhancements

V5R4

WebQuery

SSD Media Preference

On Demand Performance Center

Health Center

Completion of SQL Core

Scalar fullselect

Recursive CTE

OLAP expressions

INSTEAD OF triggers

Descriptor area

XA support

DDM 2-phase

Scrollable cursor

2M SQL statement

1000 tables in a query

7.2

Row and Column Access Control

XMLTABLE

CONNECT BY

TRANSFER OWNERSHIP

TRUNCATE

More SQL Scalar functions

Named arguments and defaults for parameters

Obfuscation of SQL routines

Array support in UDFs

Timestamp precision

Multiple-action Triggers

Built-in Global Variables

1.7 Terabyte Indexes

Navigator Graphs and Charts

Regular Expressions

SQL Dynamic Compound

UPDATE ROW across partitions

System Limits - IFS

6.1

Omnifind

MySQL storage engine

DECFLOAT

Grouping sets / super groups

INSERT in FROM

VALUES in FROM

Extended Indicator Variables

Expression in Indexes

ROW CHANGE TIMESTAMP

Statistics catalog views

CLIENT special registers

SQE Stage 6

DDM and DRDA IPv6

Deferred Restore of MQT and Logicals

Environmental limits

7.3

Temporal Tables

Generated columns for auditing

OLAP Extensions

OFFSET and LIMIT

Inline User-Defined Table Functions

New Aggregate Functions

Index Merge Ordering

EVI Only Access

More Built-in Global Variables

More SQL Scalar functions

Increased routine and view limits

More Services

CREATE OR REPLACE TABLE

ATTACH & DETACH Partition

Pipelined Table Functions

Page 3: What's New in DB2 for i (in June, 2017)s_New_in_DB2_for_i...DB2 SMP & DB2 Multisystem 7.2 –TR4 7.3 –GA 7.2 –TR5 7.3 –TR1 7.2 –TR6 7.3 –TR2 Enhancements in 1Q/2017 • Performance

© 2017 IBM Corporation

Prioritization Formula

3

We use customer value, cost and risk

to guide our decisions regarding enhancements

Enhancements explained here:

www.ibm.com/developerworks/ibmi/techupdates/db2

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© 2017 IBM Corporation

Requests For Enhancement

4

Levy your requirement, vote on Open requirements:

http://ibm.biz/IBMi_RFE

How-to Article:

https://www.ibm.com/developerworks/ibmi/library/i-ibm-rfe-trs/

Most

Popular

Database

RFE

Page 5: What's New in DB2 for i (in June, 2017)s_New_in_DB2_for_i...DB2 SMP & DB2 Multisystem 7.2 –TR4 7.3 –GA 7.2 –TR5 7.3 –TR1 7.2 –TR6 7.3 –TR2 Enhancements in 1Q/2017 • Performance

© 2017 IBM Corporation

5

Page 6: What's New in DB2 for i (in June, 2017)s_New_in_DB2_for_i...DB2 SMP & DB2 Multisystem 7.2 –TR4 7.3 –GA 7.2 –TR5 7.3 –TR1 7.2 –TR6 7.3 –TR2 Enhancements in 1Q/2017 • Performance

© 2017 IBM Corporation

IBM i 7.1 – End of Support on April 30th, 2018

6

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© 2017 IBM Corporation

7

Which release should you choose?

Enhancements in IBM i 7.2

• Database performance

SQE handles Native DB access

New I/O Costing Model

EVI Only Access

• Data-centric security

Row & Column Access Control

for SQL and DDS file

• Developer productivity

Default parameters on functions

Built-in Global Variables

Many other improvements

• Workload insight

Improved SQL Plan Cache

Performance Data Perspectives

Enhancements in IBM i 7.3

• Data-centric history

System-period Temporal table support for

SQL tables and DDS created physical files

• Data-centric accountability

Generated columns for SQL and DDS files

Authority Collection to avoid excess

authority

• On-Line Analytical Processing (OLAP)

New OLAP built-in functions

Improved capabilities for DB2 Web Query,

Cognos Analytics and other BI tools

• Improved value from priced options

DB2 SMP – Parallel execution of OLAP

DB2 Multisystem – Attach/Detach

partitions

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© 2017 IBM Corporation

Data Security … an area of continuous investment

7.1 and

earlier

………i next

2010 2011 2013 20142012 20162015

7.37.2

• Generated Columns for Auditing

• Authority Collection

• Row Permissions• Column Masks• Query journals

with SQL• Function Usage

• Field Procedures• Guardium Database Activity

Monitor• Guardium Vulnerability

Assessment• Guardium Classifier

2017

8

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© 2017 IBM Corporation

Temporal Tables in IBM i 7.3

TS

U

RB

D

I

D

I

History TABLE RECH

G

US

R

Tom

Nick

Tom

Jim

Jim

Temporal TABLE RB RE TSCH

G

I

U

I

USR

Tom

Tom

Nick

---- Who deleted this customer? -- Get that row back!--SELECT USER_NAME, C.* FROM CUSTOMERS C

FOR SYSTEM_TIME BETWEEN '0001-01-01' AND '9999-12-30' WHERE AUDIT_OP = 'D' AND CUSTNO = '102901'

DB2 Managed

9

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© 2017 IBM Corporation

Temporal Enablement Example

ALTER TABLE accountADD COLUMN row_birth

TIMESTAMP(12) NOT NULL IMPLICITLY HIDDENGENERATED ALWAYS AS ROW BEGIN

ADD COLUMN row_deathTIMESTAMP(12) NOT NULL IMPLICITLY HIDDENGENERATED ALWAYS AS ROW END

ADD COLUMN transaction_timeTIMESTAMP(12) IMPLICITLY HIDDENGENERATED ALWAYS AS TRANSACTION START ID

ADD PERIOD SYSTEM_TIME (row_birth, row_death);

CREATE TABLE account_hist LIKE account;

ALTER TABLE account ADD VERSIONING USE HISTORY TABLE account_hist;

10

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© 2017 IBM Corporation

Generated Columns for Auditing

ALTER TABLE accountADD COLUMN audit_type_change CHAR(1)

GENERATED ALWAYS AS (DATA CHANGE OPERATION) ADD COLUMN audit_user VARCHAR(128)

GENERATED ALWAYS AS (SESSION_USER) ADD COLUMN audit_client_IP VARCHAR(128)

GENERATED ALWAYS AS (SYSIBM.CLIENT_IPADDR)ADD COLUMN audit_job_name VARCHAR(28)

GENERATED ALWAYS AS (QSYS2.JOB_NAME) ;

11

• DB2 for i can track auditing of row-level changes

• Add generated columns to SQL Tables & DDS Created Physicals

• No need to change applications

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© 2017 IBM Corporation

DB2 for IBM i Lab Services

12

• Facilitated workshops covering current state, requirements, future state,

possible solutions, implementation best practices, and formulation of a

strategic roadmap:

RCAC

Temporal Tables

• Customized consulting workshops

Advanced SQL and Data-centric Programming

SQL Performance Best Practices, Monitoring and Tuning

• Consulting on any DB2 for i topic

For more information, contact Mike Cain at [email protected]

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© 2017 IBM Corporation

www.ibm.com/developerworks/ibmi/techupdates/db2

2016 2017

SF99702 Level 11SF99703 Level 1

Enhancements in 2Q/2016

• Inlined UDTFs

• Trigger (re)deployment

• More IBM i Services

• New DB2 built-in Global

Variables

• Enhanced SQL Scalar

functions

• Evaluation option for

DB2 SMP &

DB2 Multisystem

7.2 – TR47.3 – GA

7.2 – TR57.3 – TR1

7.2 – TR67.3 – TR2

Enhancements in 1Q/2017

• Performance Improvements

• JSON predicates

• More Database features in ACS

• New and enhanced SQL Scalar

Functions

• New IBM i Services

• Enhanced DB2 for i Services

• And more…

SF99702 Level 14SF99703 Level 3

Enhancements in 4Q/2016

• JSON_TABLE()

• INCLUDE for SQL

Routines

• Database features in ACS

• Faster Scalar Functions

• More IBM i Services

• New DB2 for i Services

• And more…

SF99702 Level 16SF99703 Level 4

13

Enhancements delivered via DB2 PTF Groups

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© 2017 IBM Corporation

JSON support in DB2 for i

DB2 JSON Store

June

2015

IBM i 7.1,

7.2, & 7.3

JSON_TABLE()

November

2016

IBM i 7.2 & 7.3

JSON Query support:

Predicates:

• IS JSON

• JSON_EXISTS

March

2017

IBM i 7.2 & 7.3

Page 15: What's New in DB2 for i (in June, 2017)s_New_in_DB2_for_i...DB2 SMP & DB2 Multisystem 7.2 –TR4 7.3 –GA 7.2 –TR5 7.3 –TR1 7.2 –TR6 7.3 –TR2 Enhancements in 1Q/2017 • Performance

© 2017 IBM Corporation

JSON_TABLE

“The powerful JSON_TABLE function”

http://www.ibm.com/developerworks/ibmi/library/i-json-table-trs/index.html

• Allows queries to process

JSON as relational data

• Leverage HTTP functions to

tap external JSON data

sources

• Conceptually similar to

XML_TABLE

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© 2017 IBM Corporation

16

JSON and the City of Chicago

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© 2017 IBM Corporation

17

JSON and the City of Chicago

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© 2017 IBM Corporation

• Once the feed is discovered, consumption is simple

• JSON_TABLE() requires a valid JSON object

CREATE OR REPLACE VARIABLE towed_vehicles

CLOB(1G) CCSID 1208 ;

SET towed_vehicles = '{ "stuff" :' concat

systools.HTTPGETCLOB(

'https://data.cityofchicago.org/resource/rp42-fxjt.json',

'')

concat '}';

18

JSON and the City of Chicago

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© 2017 IBM Corporation

SELECT TOW_DATE,

DAYNAME(TOW_DATE) AS DAYNAME,

COUNT(*) AS TOW_COUNT

FROM JSON_TABLE(towed_vehicles,

'lax $.stuff[*]'

COLUMNS(TOW_DATE DATE PATH '$."tow_date"')) x

GROUP BY TOW_DATE

ORDER BY TOW_COUNT DESC;

19

JSON and the City of Chicago

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© 2017 IBM Corporation

JSON – IS JSON query predicate

• IS or IS NOT JSON

– The IS JSON predicate determines whether a value is in a JSON format

with the specified attributes

– VALUE, ARRAY, OBJECT, or SCALAR checking

-- Use a trigger to validate JSONCREATE TRIGGER VALIDATE_JSON BEFORE INSERT OR UPDATE OF JSON_DATA ON MYTABLEREFERENCING NEW AS NFOR EACH ROW MODE DB2ROWIF N.JSON_DATA IS NOT JSON OBJECT THENIF INSERTING THEN

SIGNAL SQLSTATE '75007'('INSERT failed due to invalid JSON');

ELSE SIGNAL SQLSTATE '75007'

(‘UPDATE failed due to invalid JSON');END IF;

END IF;

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© 2017 IBM Corporation

JSON – JSON_EXISTS query predicate

• JSON_EXISTS

– JSON_EXISTS predicate is true if at least one value can be located

– COALESCE or IFNULL can be used to identify/process NULL values

– FALSE ON ERROR, TRUE ON ERROR, UNKNOWN ON ERROR, or

ERROR ON ERROR processing options

-- Identify the employees who do not have -- at least one emergency contact.SELECT empno, lastname FROM employeeWHERE NOT JSON_EXISTS(COALESCE(json_data, ''), 'strict $.emergency' FALSE ON ERROR);

Page 22: What's New in DB2 for i (in June, 2017)s_New_in_DB2_for_i...DB2 SMP & DB2 Multisystem 7.2 –TR4 7.3 –GA 7.2 –TR5 7.3 –TR1 7.2 –TR6 7.3 –TR2 Enhancements in 1Q/2017 • Performance

© 2017 IBM Corporation

22

IBM i Services – What happened in the last 2 TRs?

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© 2017 IBM Corporation

• SQL alternative to the Display Object Authority (DSPOBJAUT) command

-- description: Review authorities for a userSELECT * FROM QSYS2.OBJECT_PRIVILEGES WHERE OBJECT_NAME = 'FRANKDBA' AND

SYSTEM_OBJECT_SCHEMA = 'QSYS' AND OBJECT_TYPE = '*USRPRF';

OBJECT_PRIVILEGES

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© 2017 IBM Corporation

• Alternative to the Display Authorization List (DSPAUTL) command

---- description: List the public security settings -- for all authorization lists--SELECT *

FROM QSYS2.AUTHORIZATION_LIST_USER_INFOWHERE AUTHORIZATION_NAME = '*PUBLIC';

AUTHORIZATION_LIST_USER_INFO

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© 2017 IBM Corporation

• Alternative to Display Authorization List Objects (DSPAUTLOBJ) command

-- description: Count the types of objects tracked-- by all non-IBM authorization lists--SELECT AUTHORIZATION_LIST, SYSTEM_OBJECT_TYPE, OBJECT_TYPE, COUNT(SYSTEM_OBJECT_TYPE)

FROM qsys2.authorization_list_infoWHERE AUTH_LIST NOT LIKE 'Q%'GROUP BY AUTHORIZATION_LIST, SYSTEM_OBJECT_TYPE,

OBJECT_TYPE ORDER BY 1,4 DESC;

AUTHORIZATION_LIST_INFO

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© 2017 IBM Corporation

• Extract detail from message queues, including QSYSOPR

-- Examine all inquiry messages with responsesSELECT a.message_text AS “INQUIRY”,

b.message_text AS “REPLY”FROM qsys2.message_queue_info a INNER JOIN

qsys2.message_queue_info bON a.message_key = b.associated_message_keyORDER BY b.message_timestamp DESC;

MESSAGE_QUEUE_INFO

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© 2017 IBM Corporation

• QSYS2.USER_INFO – Add Supplement Group detail

• QSYS2.LICENSE_INFO – Add install detail

• SYSTOOLS.LICENSE_EXPIRATION_CHECK – Automate checking

And yet more services…

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© 2017 IBM Corporation

• LISTAGG – Aggregates a set of string values for the group

into one string by appending the string-expression

-- Produce a list of comma-separated namesSELECT workdept, LISTAGG(lastname, ',') WITHIN GROUP(ORDER BY lastname) AS employees

FROM employee GROUP BY workdept

New SQL Built-in Function

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© 2017 IBM Corporation

• LTRIM & RTRIM – Add optional 2nd parameter (trim-expression)

-- Left Trim more than blanksvalues LTRIM(' $ 10.40', '$ ') '10.40'

-- Remove outer noisevalues RTRIM(

LTRIM('""Snazzy^--"', '"-^') , '-"^'); 'Snazzy'

Enhanced SQL Built-in Function

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© 2017 IBM Corporation

• 2,000+ Pages of fun!

• Updated twice per year

Find it here…

30

http://ibm.biz/DB2fori_SQLreference

SQL Reference

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© 2017 IBM Corporation

ACS Version 1.1.7.0

• Run SQL Scripts

– CL Prompting

– Enhanced SQL Highlighting

– Show Object References

– Upload Results

– More “Insert from Examples”

• Printer Output

– Multiple User Filter

• IFS

– Filter

• Schemas

Database Tooling

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© 2017 IBM Corporation

Schemas in ACS

Supported Actions:

• Definition

• Description

• Generate SQL

• Properties

• Rename

• New Database Object

• Explain

• Data

o View

o Clear

o Copy

o Initialize

• More to come…

• Actions also enabled in

Visual Explain

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© 2017 IBM Corporation

Services and

APIs

33

Watson, Bluemix, and IBM i

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© 2017 IBM Corporation

Services and

APIs

34

Data Connect

Watson, Bluemix, and IBM i

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© 2017 IBM Corporation

35

Data Connect and DB2 for i

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© 2017 IBM Corporation

36

Data Connect and DB2 for i

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© 2017 IBM Corporation

37

Watson Analytics and DB2 for i

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© 2017 IBM Corporation

38

• Which day where the most cars towed on?

Watson Analytics and DB2 for i – Visualizing Data

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© 2017 IBM Corporation

39

Watson Analytics and DB2 for i – Visualizing Data

• Where were out-of-state cars that were towed originally from?

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© 2017 IBM Corporation

40

Watson Analytics and DB2 for i Data –Understanding Relationships & Identifying Patterns

Data Source –

Daily ‘L’ Train ridership by station

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© 2017 IBM Corporation

41

Watson Analytics and DB2 for i Data –Understanding Relationships & Identifying Patterns

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© 2017 IBM Corporation

42

SELECT q.*,

systools.translate_english_to_spanish(q.quote)

AS "QUOTE_IN_España"

FROM session.famous_quotes q;

Using SQL to ask Watson a question

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© 2017 IBM Corporation

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Using SQL to ask Watson a question

Page 44: What's New in DB2 for i (in June, 2017)s_New_in_DB2_for_i...DB2 SMP & DB2 Multisystem 7.2 –TR4 7.3 –GA 7.2 –TR5 7.3 –TR1 7.2 –TR6 7.3 –TR2 Enhancements in 1Q/2017 • Performance

© 2017 IBM Corporation

44

SQL

Using SQL to ask Watson a question