Update on new features of SQL and SQLScript in SAP HANA SPS11.

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SAP HANA SPS 11 - What’s New?
HANA SQL
SAP HANA Product Management December, 2015
(Delta from SPS 10 to SPS 11)

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Agenda
CASE JOIN
New SQL Functions
Supportability
Projection Views

4. CASE JOIN

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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

6. SQL Functions

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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

8. Supportability

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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

10. Projection View

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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

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SAP HANA SPS 11 - What’s New?
SQLScript
SAP HANA Product Management November, 2015
(Delta from SPS 10 to SPS 11)

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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

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SQLScript – What’s New in SPS 11
Filter 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.

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SQLScript – What’s New in SPS 11
System 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

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SQLScript – What’s New in SPS 11
Default 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

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SQLScript – What’s New in SPS 11
Default 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.

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SQLScript – What’s New in SPS 11
IS_EMPTY
• Used to determine if a table
variable/parameter or table contains
any rows
SPS10 SPS11

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SQLScript – What’s New in SPS 11
Index-based Cell Access for Table Variables
• Used to directly access any cell
(read/write) within a table
variable or parameter
• <table>.<column>[<index>]
notation

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SQLScript – What’s New in SPS 11
Spatial 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.

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SQLScript – What’s New in SPS 11
Injection 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)

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Thank you
Contact information
Ruediger Karl & Rich Heilman
SAP HANA Product Management
AskSAPHANA@sap.com