SAP HANA SPS10- SQLScript

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SAP HANA SPS 10 - What’s New? SQLScript

SAP HANA Product Management June, 2015

(Delta from SPS 09 to SPS 10)

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

Roadmap SAP HANA SQLScriptSummary

Today

SAP HANA Studio

Semantic Code Completion

Web Based Development

Workbench

New Editor

New Debugger

Language Features

Table parameter definitions

Table variable definitions

Autonomous Transactions

Planned Innovations (SPS 10)

COMMIT/ROLLBACK Support

Header Only Procedures/Functions

SQL Inlining Hints

Multiple output in scalar UDF assignment

Table Types for Table Variable

Declarations

Anonymous Blocks

Web Based Development Workbench

Semantic Code Completion

Design-Time artifact debugging

This is the current state of planning and may be changed by SAP at any time.

Future Direction (SPS 11 and

beyond)

SQLScript v3 performance

enhancements

GIS Support

Table cell access(read/modify)

Move from Repository to GIT

HDI: HANA Deployment

Infrastructure

Containers for schema free content


SQLScript – What’s New in SPS 10?

Tooling

Code Completion in Web-based Dev Workbench

Design-Time Debugging in Web-based Dev Workbench

Language

Commit/Rollback

Anonymous Blocks

Header-Only Procedure/Function

SQL Inlining Hints

Multiple Scalar Variable Assignment

Table Type for Table Variable Declarations


SQLScript – What’s New in SPS 10Code Completion

Code completion in web-

based development

workbench

• CTRL+SPACE

• Keyword/statement code

completion

• Semantic code completion


SQLScript – What’s New in SPS 10Design-Time Artifact Debugging

Design-Time artifact

debugging from web-based

development workbench

• Breakpoints in design-

time artifact

.hdbprocedure

• “Invoke Procedure”

button


SQLScript – What’s New in SPS 10Commit/Rollback

COMMIT/ROLLBACK

• Supported in procedures only, not supported for scalar or table UDFs

• COMMIT command commits the current transaction and all changes before the COMMIT

command

• ROLLBACK command rolls back the current transaction and undoes all changes since the last

COMMIT

• Transaction boundary is not tied to the procedure block, so if there are nested procedures that

contain COMMIT/ROLLBACK then all statements in the top-level procedure are affected.

• If dynamic SQL was used in the past to execute COMMIT and ROLLBACK statements, it is

recommended to replace all occurrences with the native command because they are more

secure.


SQLScript – What’s New in SPS 10Commit/Rollback(Cont.)

COMMIT/ROLLBACK

• The first and third INSERT

statements affect the productLog

table, but not the second since it

was rolled back.

• With the first COMMIT, the first

transaction is written to

persistence, and a new transaction

is started

• By triggering ROLLBACK, all

changes in the second transaction

are reverted, and a new

transaction is started


SQLScript – What’s New in SPS 10Anonymous Blocks

Anonymous Blocks

• Executable DML statement which

can contain imperative and

declarative statements

• No lifecycle handling(e.g.

CREATE/DROP), no catalog object

• No parameters or container specific

properties such as language, or

security mode

• Supports complete SQLScript

language


SQLScript – What’s New in SPS 10Header Only Procedures/Functions

Header Only Procedures/Functions

• When creating a procedure, all nested procedures need to exist beforehand

• Create procedures/functions with minimum metadata first using the HEADER ONLY extension

• Inject the body of the procedure/function by using the ALTER PROCEDURE statement

CREATE PROCEDURE <proc_name> [(<parameter_clause>)] AS HEADER ONLY

ALTER PROCEDURE <proc_name> [(<parameter_clause>)]

[LANGUAGE <lang>]

[SQL SECURITY <mode>]

[DEFAULT SCHEMA <default_schema_name>]

READS SQL DATA AS

BEGIN

<procedure_body>

END;


SQLScript – What’s New in SPS 10SQL Inlining Hints

SQL Inlining Hints

• Used to explicitly enforce or block the

inlining of SQL Statements within

SQLScript

• Depending on the scenario, execution

performance could be improved

Example: Block Statement-Inlining

CREATE PROCEDURE procNoInline ( OUT tab2 tt_tab )

LANGUAGE SQLSCRIPT READS SQL DATA AS

BEGIN

tab = SELECT * FROM T WITH HINT (NO_INLINE);

--> Statement will not be inlined into tab2

tab2 = SELECT * from :tab;

END;

Example : Enforce Statement-Inlining

CREATE PROCEDURE procInner (IN tab1 tt_tab, OUT tab2 tt_tab )


BEGIN

tab2 = SELECT I FROM :tab1 WITH HINT (INLINE);

--> Statement will be inlined into the statement of

--> variable table2 of procedure procCaller

END;

CREATE PROCEDURE procCaller (IN table1 tt_tab,

OUT table2 tt_tab)


BEGIN

call procInner (:table1,outTable);

table2 = select I from :outTable;

END;


SQLScript – What’s New in SPS 10Multiple Scalar Variable Assignments

Multiple Scalar Variable Assignments

• Prior to SPS 10, multiple parameter

assignment for scalar UDFs was not

supported. You were forced to do the

assignment via SELECT statement

SPS 10 assign multiple outputs of Scalar UDF to multiple scalar variables

CREATE PROCEDURE proc(IN a int, IN b int,

OUT x int, OUT y int)


begin

(x,y) = inner_func1(a,b);

end;

It is also possible to only assign a single output




begin

x = inner_func1(a,b).x;

y = inner_func1(a,b).y;

end;

SPS 09 consuming multiple result via SELECT statement




begin

select inner_func1(a,b).x, inner_func1(a,b).y

into x,y from dummy;

end;


SQLScript – What’s New in SPS 10Table Types for Table Variable Declarations

Table Type for Table Variable Declarations

• Reference a table type in DECLARE statement

• Must contain runtime object name including schema

CREATE PROCEDURE test_table_type( )


BEGIN

declare lt_tab "SAP_HANA_EPM_NEXT"."sap.hana.democontent.epmNext.data::MD.Products";

lt_tab = select * from "SAP_HANA_EPM_NEXT"."sap.hana.democontent.epmNext.data::MD.Products";

select * from :lt_tab;

END;

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

How to find SAP HANA documentation on this topic?

SAP HANA Platform SPS

What’s New – Release Notes

Installation

– SAP HANA Server Installation Guide

Security

Administration

– SAP HANA Administration Guide

Development

– SAP HANA Developer Guide

References

– SAP HANA SQL Reference

• In addition to this learning material, you find SAP HANA documentation on

SAP Help Portal knowledge center at http://help.sap.com/hana_platform.

• The knowledge center is structured according to the product lifecycle: installation, security, administration,

development. So you can find e.g. the SAP HANA Server Installation Guide

in the Installation section and so forth …

http://help.sap.com/hana_platform



http://help.sap.com/hana/SAP_HANA_Server_Installation_Guide_en.pdf



http://help.sap.com/hana/SAP_HANA_Administration_Guide_en.pdf


http://help.sap.com/hana/SAP_HANA_Developer_Guide_en.pdf


http://help.sap.com/hana/SAP_HANA_SQL_and_System_Views_Reference_en.pdf



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SAP HANA SPS10- SQLScript

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