Whats new in SAP HANA SPS 11 SQL/SQLScript

1© 2014 SAP AG or an SAP affiliate company. All rights reserved.

SAP HANA SPS 11 - What’s New? HANA SQL

SAP HANA Product Management December, 2015

(Delta from SPS 10 to SPS 11)

© 2015 SAP SE or an SAP affiliate company. All rights reserved. 2Public

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Agenda

CASE JOIN

New SQL Functions

Supportability

Projection Views

CASE JOIN


New JOIN Type for “Extension by Custom Fields” and Views

ext1

br2

BSEG

VBSEGD

br1

ext2

Union All View

BSEG br1 br2VBSEGD

ext1BSEG br1

br2VBSEGD

Final View

New: Case Join Select * from V left outer many to one case join

when br = 'br1' then

return ext1 as ext from BSEG on V.key = BSEG.key

when br = 'br2' then

return ext2 as ext from VBSEGD on V.key = VBSEGD.key

end;

pruning out unnecessary self-joins,

re-define only the top-most view ext2

SQL Functions


SQL Functions

group_contains(), group_why_found(), group_score()

• Query searches for objects that match a pattern over multi-records and multi-columns

to_snumc(), snumc_to_int(), snumc_to_bigint(), snumc_to_decimal()

• current to_alphanum() function converts integer-values in a character-format, which is specifically used to

integrate “external” integer data directly into the BW-Reporting as characteristics

• non-SQL standard behavior (cannot be pushed down to other DBMS for SDA, no support for DT)

• No support for negative numbers

• New functions preserves order in target string and can handle negative numbers

Supportability


Monitoring Views

M_EXECUTED_STATEMENTS (New)

Historize executed DDL operations

Similar fields like m_expensive_statements, but includes error_code and error_text

Enabled by default

M_EXPENSIVE_STATEMENTS (ENHANCED); downported to rev102

Column “workload_class_name” added

Displays mapped workload class of a statement (if workload class is defined)

M_CONNECTIONS (ENHANCED); downported to rev102

Column “close_reason” added, e.g. 'due to idle connection timeout’

empty for normal cases

Projection View


Projection View

New Viewtype

New:

– Can be used in HANA column views

– Insert/Update/Delete triggers on projection view are supported

Syntax:

– CREATE PROJECTION VIEW < view_name> [(<column_name_list>)] AS SELECT <field_list> FROM [<schema>.]<table_name>

– DROP VIEW <view_name>

Pre-requisite

– Projection view must include all primary keys of the underlying table

12© 2014 SAP AG or an SAP affiliate company. All rights reserved.

SAP HANA SPS 11 - What’s New? SQLScript

SAP HANA Product Management November, 2015

(Delta from SPS 10 to SPS 11)

© 2014 SAP AG or an SAP affiliate company. All rights reserved. 13

SQLScript – What’s New in SPS 11?

Tooling

No new developments for SPS 11

Language

ALTER PROCEDURE/ALTER FUNCTION Support

TRUNCATE Support

Filter pushdown for Table User Defined Functions

System Variables for Current Objects

Default Values for Table Variables and Parameters

DEFAULT EMPTY for Table IN/OUT Parameters

IS_EMPTY() Function for Table and Table Variables

Index-based Cell Access for Table Variables and Parameters

HANA Spatial Support

SQL Injection Prevention Build-in Procedures


SQLScript – What’s New in SPS 11Filter Pushdown for Table User Defined Functions

• Filter by column of table UDF via

WHERE clause

• Filter is pushed down, and result

set is not materialized before the

filtering

• Prior to SPS11, filter pushdown

was blocked for table UDF which

contained imperative logic

constructs.


SQLScript – What’s New in SPS 11System Variables for Object Name and Schema

• Use

::CURRENT_OJECT_SCHEMA

to return the schema name of

the current procedure or

function

• Use

::CURRENT_OBJECT_NAME

to return the name of the

current procedure or function


SQLScript – What’s New in SPS 11Default Values for Table Variables & Parameters

• Used to initialize table

variables and parameters

with tabular data

• Reference a persisted table

which contains the data

• DEFAULT can also be used

within the DECLARE

statement


SQLScript – What’s New in SPS 11Default Empty IN/OUT Table Parameters

• Used to initialize IN/OUT

table parameters

• If DEFAULT EMPTY is not

used and no assignment to

the output parameter exists

in the body, an error occurs.


SQLScript – What’s New in SPS 11IS_EMPTY

• Used to determine if a table

variable/parameter or table contains

any rows

SPS10 SPS11


SQLScript – What’s New in SPS 11Index-based Cell Access for Table Variables

• Used to directly access any cell

(read/write) within a table

variable or parameter

• <table>.<column>[<index>]

notation


SQLScript – What’s New in SPS 11Spatial Support

• SQLScript supports the

spatial data type

ST_GEOMETRY and SQL

spatial functions to access

and manipulate the spatial

data.

• SQLScript also supports the

objective style function

calls, which is needed for

some SQL spatial functions.


SQLScript – What’s New in SPS 11Injection Prevention Built-In Procedure

• There is a danger of SQL injection attack if dynamic SQL statements are used, where the parts

of it are derived from untrusted input (e.g. user interface).

• ESCAPE_SINGLE_QUOTES(string_var)

used for variables containing a SQL string literal

• ESCAPE_DOUBLE_QUOTES(string_var)

used for variables containing a delimited SQL identifier

• IS_SQL_INJECTION_SAFE(string_var[, num_tokens])

used to check that a variable contains safe simple SQL identifiers (up to num_tokens, default is 1)

© 2015 SAP SE or an SAP affiliate company. All rights reserved.

Thank you

Contact information

Ruediger Karl & Rich Heilman

SAP HANA Product Management

[email protected]

mailto:[email protected]

Data & Analytics

Whats new in SAP HANA SPS 11 SQL/SQLScript