INTERNAL SAP HANA Client 2.4 Document Version: 1.1 – 2021-06-30

What's New in the SAP HANA Client company. All rights reserved. affiliate

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What's New in the SAP HANA Client 2 INTERNAL Content 1 New and Changed Features in the SAP HANA Client

 Note

Information about earlier versions of the SAP HANA Client (prior to version 2.4) is included in the SAP HANA Platform documentation.

Client Version Type Description

2.4 New Direct TCP You can create an HTTP and TLS proxy connection with­ Connec­ out using WebSockets, tions Through an allowing direct TCP con­ HTTP Proxy nections via an HTTP proxy.

HTTP Proxy Client Con­ nections

Implement HTTP Proxy Client Connections

JDBC Connection Prop­ erties

2.4 New SAP SAP HANA Cloud supports HANA SNI routing. You must use Cloud version 2.4.167 (2.4.67 for Sup­ port the JDBC driver) or later of the SAP HANA client inter­ faces with SAP HANA Cloud.

There are also restrictions on the platforms that sup­ port SAP HANA Cloud.

2.5 New .NET A new environment varia­ Core En­ ble, HDBDOTNETCORE, hance­ and examples have been ments added for .NET Core.

Run the .NET Core Exam­ ples

What's New in the SAP HANA Client New and Changed Features in the SAP HANA Client INTERNAL 3 Client Version Type Description

2.5 New .NET You can now develop .NET Core Core applications on Sup­ and macOS with the SAP ports Li­ nux and HANA client. macOS The .NET Core Provider

Available Client Interfaces on UNIX, macOS, or Linux

2.5 New SAP The new SAP HANA Calcu­ HANA lation View API is a Java- Calcula­ based Application Pro­ tion View API gramming Interface (API) which allows you to create SAP HANA calculation views programmati­ cally.SAP HANA Calcula­ tion View API

2.5 New Go The utcTimeConversion Con­ connection property controls nec­ tion whether or not time.Time ob­ Prop­ jects used as input parame­ erty ters should be converted to UTC before upserts are exe­ cuted.

Go Connection Properties

2.5 Changed SAP HANA The separator for the HDBSQL output command at Output Com­ mand Sepa­ the end of a specified rator line in an SAP HANA HDBSQL script is now optional.

What's New in the SAP HANA Client 4 INTERNAL New and Changed Features in the SAP HANA Client Client Version Type Description

2.5 New SAP The new -stdin option HANA reads SAP HANA HDBSQL HDBSQL options from the standard Options input.

The new -optionsfile option specifies that command-line op­ tions must be listed in a one option per line format in the file.

The new -h2 option dis­ plays all help options, as opposed to -h, which only displays the most com­ mon help options.

SAP HANA HDBSQL Op­ tions

2.5 Changed SAP HANA The argument value is HDBSQL -b now case insensitive. Option SAP HANA HDBSQL Options

What's New in the SAP HANA Client New and Changed Features in the SAP HANA Client INTERNAL 5 Client Version Type Description

2.5 Changed Updates The SAP HANA HDBSQL to the exit code that is returned SAP when an error occurs has HANA HDBSQL been updated: Exit Code ● When SAP HANA HDBSQL fails to open a file, it exits with '1' instead of the system error code. ● When SAP HANA HDBSQL encounters an error processing substitution variables, it exits with '4' instead of '1'. ● When SAP HANA HDBSQL fails to parse the provided com­ mand line options, it exits with '2' instead of '0'. ● When SAP HANA HDBSQL exits with a SQL error it exits with '3' instead of the SQL error number trun­ cated to the platform- specific exit code size. SAP HANA HDBSQL exits with an SQL er­ ror if the final state­ ment executed re­ turned an error, or on the first statement to raise an error if the -e option is provided. If the -e option is fol­ lowed by a valid inte­ ger argument, that is used as the exit code instead of '3'.

2.5 New JDK For the SAP HANA JDBC Sup­ driver versions 2.5 and port greater, the minimum sup­ Update ported version of the Java Development Kit (JDK) is 1.8.

What's New in the SAP HANA Client 6 INTERNAL New and Changed Features in the SAP HANA Client Client Version Type Description

2.5 New JDBC The new suspend­ Static Trace(java..Connection) Meth­ method suspends JDBC trac­ ods ing on a per connection basis while the new resume­ Trace(java.sql.Connection) method resumes JDBC trac­ ing on a per connection basis.

suspendTrace(java.sql.Con­ nection) Method

resumeTrace(java.sql.Con­ nection) Method

What's New in the SAP HANA Client New and Changed Features in the SAP HANA Client INTERNAL 7 Client Version Type Description

2.5 New JDBC The following new TCP connection Con­ properties are supported when nec­ running under JVM 11 and later for tion Prop­ the Linux, macOS, and Microsoft er­ Windows client: ties ● The tcpKeepAliveCount connection property controls the number of KeepAlive packets sent to the server be­ fore the driver assumes that the connection is closed. ● The tcpKeepAliveIdle connection property controls the number of specified sec­ onds that the connection is idle before the driver sends a KeepAlive packet. ● The tcpKeepAliveInterval connection property controls the number of specified sec­ onds before the driver sends an additional KeepAlive packet if there was no re­ sponse to the previous Keep­ Alive packet.

The following new connection properties are supported when running SAP HANA 2.4 Rev 41: JDBC 2.4.54 or later or SAP HANA 2.5: JDBC 2.5.0 or later:

● The traceFile and traceOptions connection properties, when used to­ gether, implicitly enable trac­ ing for the current JDBC con­ nection only.

The new proxyHttp connection property enables HTTP proxy au­ thentication.

The new bindAddress connec­ tion property specifies that the provided address is used as the source IP/host for the socket con­ nection.

What's New in the SAP HANA Client 8 INTERNAL New and Changed Features in the SAP HANA Client Client Version Type Description

The new nonBlockingIO con­ nection property specifies whether to block I/O when send­ ing and receiving packets: TRUE/ FALSE. The default is TRUE, which specifies that I/O should not be blocked. Setting this property to FALSE blocks the I/O

The new sslSNIRequest con­ nection property specifies whether SNI requests are enabled for TLS connections: TRUE/ FALSE.

JDBC Connection Properties

2.5 New JDBC The following new environ­ Envi­ ment variables are supported ron­ when running SAP HANA 2.4 ment Varia­ Rev 41: JDBC 2.4.54 or later bles or SAP HANA 2.5: JDBC 2.5.0 or later.

● The HDB_JDBC_TRACE­ FILE and HDB_JDBC_TRACEOP­ TIONS environment vari­ ables, when used to­ gether, implicitly enable tracing for all JDBC con­ nections established in the current JVM.

Environment Variables

What's New in the SAP HANA Client New and Changed Features in the SAP HANA Client INTERNAL 9 Client Version Type Description

2.5 Changed JDBC JDBC trace files now include Tracing the trace settings in the En­ trace file header. Addition­ hance­ ments ally, the settings are written to the trace file if they change while tracing is ena­ bled.

When JDBC connection tracing is enabled, calls to the JDBC static methods are logged in the trace file.

Trace a JDBC Connection Using a Connection String

Trace a JDBC Connection Using the Command Line

Trace a JDBC Connection Using the GUI

2.5 New JDBC The new "Show elapsed Trace times" tracing option ena­ Option bles/disables elapsed times for each JDBC API call trace record and each packet send/receive record.

JDBC Tracing and Trace Op­ tions

2.5 New Node.js You can now build appli­ on Linux cations on Linux Alpine Alpine that make use of the SAP HANA Node.js client in­ terface.

Configure the Node.js Driver (Client Install)

2.5 New Node.js The Node.js driver now Support supports node version 12.

What's New in the SAP HANA Client 10 INTERNAL New and Changed Features in the SAP HANA Client Client Version Type Description

2.5 New Node.js Con­ This method returns nection.get­ the warnings for a Warnings connection. Method getWarnings() Method

2.5 New Node.js The new Con­ dataTruncationError nection Proper­ property, when set to TRUE, ties fails the call whenever a data trunca­ tion error occurs.

The new getDriverVersion property retrieves the ver­ sion of the node.js binaries.

The maxPoolSize con­ nection property defines the maximum number of con­ nections that are allowed in the connection pool.

The connectionLifetime specifies the maximum time, in seconds, that the connec­ tion is cached in the pool. A value of 0 causes pooled connections to be cached permanently.

Node.js Connection Proper­ ties

What's New in the SAP HANA Client New and Changed Features in the SAP HANA Client INTERNAL 11 Client Version Type Description

2.5 New Node.js The new Envi­ HDB_NODE_PLATFORM_CLEAN ron­ ment environment variable removes, at Varia­ npm install time, unnecessary native ble platform libraries that will never be used after the Node driver is instal­ led. To invoke this cleaning behavior, specify HDB_NODE_PLATFORM_CLEAN=1.

This is not recommended if you are vendoring dependencies.

Environment Variables

2.5 Changed Micro­ The Validate the TLS/SSL certifi- soft cate option has been removed Win­ so that, by default, the server dows ODBC certificate is validated when us­ Man­ ing TLS/SSL. Disable this valida­ ager tion clicking the Advanced but­ Ena­ ton and setting the connection bles property Server sslValidateCertificate Certif­ icate to FALSE. Vali­ Connect to SAP HANA via ODBC dation by De­ fault

2.5 Changed ODBC ODBC trace files output ena­ Tracing bled trace settings at the start of every new file, even when the trace settings have changed while the applica­ tion is already running.

What's New in the SAP HANA Client 12 INTERNAL New and Changed Features in the SAP HANA Client Client Version Type Description

2.5 New ODBC The SQL_ATTR_BYTES_SENT Con­ connection attribute retrieves nec­ the total number of the net­ tion At­ work bytes sent to the server tribu­ since the connec­ tes tion was established. The to­ tal sent bytes are reset to zero by the driver when the con­ nection is disconnected. The SQL_ATTR_BYTES_RE­ CEIVED connection attribute retrieves the total number of the network bytes received from the server since the da­ tabase connection was estab­ lished. The total received bytes are reset to zero by the driver when the connection is disconnected.

ODBC Connection Attributes

2.5 New SQLDBC SQLDBC now supports Supports In­ input table parameters put Table for SAP S/4HANA. In­ Parameters for SAP S/ put table parameters 4HANA are not supported by applications other than SAP S/4HANA, nor is it supported on clients other than SQLDBC.

What's New in the SAP HANA Client New and Changed Features in the SAP HANA Client INTERNAL 13 Client Version Type Description

2.5 New SQLDBC The following new connection Connec­ properties are supported when tion running under Linux, macOS, and Proper­ ties Microsoft Windows clients: ● The tcpKeepAliveCount connection property controls the number of KeepAlive packets sent to the server be­ fore the driver assumes that the connection is closed. ● The tcpKeepAliveIdle connection property controls the number of specified sec­ onds that the connection is idle before the driver sends a KeepAlive packet. ● The tcpKeepAliveInterval connection property controls the number of specified sec­ onds before the driver sends an additional KeepAlive packet if there was no re­ sponse to the previous Keep­ Alive packet.

The new proxyHttp connection property enables HTTP proxy au­ thentication.

The isoTimestampOutput connection property controls whether or not T is used as the separator between the Date and Time parts of a timestamp value. If T is not used, then a space is used as the separator.

The new secondarySessionFallbac k property forces the ongoing transaction on a non-anchor con­ nection to fall back to the anchor/ primary connection if this connec­ tion is dropped by the network or server.

The new bindAddress connec­ tion property specifies that the

What's New in the SAP HANA Client 14 INTERNAL New and Changed Features in the SAP HANA Client Client Version Type Description

provided address is used as the source IP/host for the socket con­ nection.

The nodeConnectTimeout property now defaults to 60 sec­ onds.

The new sslSNIRequest con­ nection property specifies whether SNI requests are enabled for TLS connections: TRUE/ FALSE.

SQLDBC Connection Properties

2.5 New SQLDBC Use the Tracing HDB_SQLDBC_TRACEFILE and HDB_SQLDBC_TRACE­ OPTS environment varia­ bles to trace an application if you do not have hdbsqldbc_cons installed or if you are using a stand­ alone driver such as Node.js.

SQLDBC Tracing

2.5 Changed Update On Microsoft Windows, the to the Client Installer now adds Client In­ the SAP HANA Client in­ stalla­ tion on stallation directory to the Micro­ PATH environment varia­ soft Win­ ble. The directory is also re­ dows moved from the PATH en­ vironment variable during the SAP HANA Client unin­ stallation.

Install the SAP HANA Cli­ ent on Microsoft Windows

What's New in the SAP HANA Client New and Changed Features in the SAP HANA Client INTERNAL 15 Client Version Type Description

2.6 New Node.js The new Con­ allowFetchWarnings nection Proper­ connection property con­ ties trols whether server warn­ ings from retrieving result set of a query are returned to a JavaScript when it calls the next function of the Re­ sultSet class.

Node.js Connection Proper­ ties

2.6 New Node.js The new Envi­ HDB_NODEJS_THREADPOOL_SIZE ron­ ment environment variable specifies the Varia­ number of worker threads in the thread bles pool. The formerly used UV_THREADPOOL_SIZE environ­ ment variable is still respected, but is overridden by HDB_NODEJS_THREADPOOL_SIZE. If neither is set, a default value of 4 worker threads is used.

Environment Variables

Tuning an Application

2.6 New ODBC The new Con­ allowFetchWarnings nec­ tion controls whether server Prop­ warnings from retrieving the erties result set of a query is re­ turned to an ODBC applica­ tion when it calls ODBC APIs SQLFetch or SQLExtended­ Fetch.

ODBC Connection Properties

What's New in the SAP HANA Client 16 INTERNAL New and Changed Features in the SAP HANA Client Client Version Type Description

2.6 New SQLDBC SQLDBC-based connec­ Connec­ tions using OpenSSL now tion trust the Certificate Au­ Proper­ ties thorities (CAs) provided with your or OpenSSL installation by default. For example, con­ nections to SAP HANA Cloud no longer require configuration to provide the “DigiCert Global Root CA” in the sslTrustStore con­ nection property and can take advantage of the cer­ tificate already provided with the OpenSSL installa­ tion.

This feature does not apply to CommonCryptoLib con­ nections. This feature is similar to how JDBC con­ nections and SQLDBC con­ nections using the MSCrypto provider func­ tion.

A new connection property sslUseDefaultTrust Store, when set to FALSE, can be used to re­ vert to the original behav­ iour of not trusting the de­ fault CAs.

SQLDBC Connection Prop­ erties

2.6 New SQLDBC Connections to SAP and JDBC HANA Cloud are auto­ Connec­ matically redirected to tions (SAP HANA an appropriate internal Cloud) database server to im­ prove resource use and query latency.

What's New in the SAP HANA Client New and Changed Features in the SAP HANA Client INTERNAL 17 Client Version Type Description

2.6 New README.html The SAP HANA client is Included software package with SAP now comes with a HANA Client Installation README.html file that includes helpful information and links regarding the client installation.

2.6 New Connec­ For SQLDBC and JDBC, tions to connections to port 443 Port 443 (SAP HANA Cloud) are en­ (SAP HANA crypted by default and no Cloud) longer need to specify Are En­ encrypt=TRUE in the crypted connection properties. by De­ fault To disable this behaviour, use the encrypt=FALSE connection property.

2.6 New The SAP The following enhance­ HANA Cal­ ments are included: culation View API ● Improved Javadoc for SAP ● Improved tracing HANA ● Moved certain Cloud has classes to the cor­ been Up­ rect package dated to ● Relaxed the regex Version pattern for identifier 1.4.1 ● Added missing fields and methods ● Removed unneeded classes, fields, and methods

What's New in the SAP HANA Client 18 INTERNAL New and Changed Features in the SAP HANA Client Client Version Type Description

2.6 New The SAP The following enhance­ HANA Cal­ ments are included: culation View API ● Improved Javadoc for SAP ● Improved tracing HANA Plat­ ● Moved certain form has classes to the cor­ been Up­ rect package dated to ● Relaxed the regex Version pattern for identifier 1.4.2 ● Removed unneeded classes, fields, and methods

2.7 New SQLTran­ The SAP HANA JDBC driver now throws a saction­ SQLTransactionRollbackException Roll­ backEx­ when an error with SQL State 129-133 is re­ ception ceived from the server. Previously, the driver Thrown would throw a SQLException. for SQL States 129-133

2.7 New hdbalm The hdbalm tool is now Support supported for Python 3.6 for Py­ runtime and later. The tool thon 3 is still compatible with older Python 2.6 and 2.7 runtimes. For further in­ formation, see SAP Note 2990848 .

What's New in the SAP HANA Client New and Changed Features in the SAP HANA Client INTERNAL 19 Client Version Type Description

New 2.7 The Py­ The following limitations thon apply: Driver ● The maximum length Can be of a LOB column for Installed Under the 32-bit Python 32-bit driver on Microsoft Python Windows is on Mi­ 2147483647. crosoft Windows ● The maximum row­ count that can be re­ turned for the 32-bit Python driver on Mi­ crosoft Windows is 2147483647.

2.7 New X.509 SQLDBC-based clients Authenti­ now support x509 certifi- cation cate authentication. By de­ Support for fault, the certificate infor­ SQLDBC- mation is stored in the based same sslKeystore lo­ Clients cation, but can also be specified by a new connec­ tion property, authenticationX509 , pointing to a PEM string or file location for a sepa­ rate keystore. The new au­ thentication mode is ena­ bled by default when no username or password is provided and overrides the previous Kerberos default if both are configured. To re-enable the default Ker­ beros authentication, use the new connection prop­ erty authenticationMeth ods.

SQLDBC Connection Prop­ erties

What's New in the SAP HANA Client 20 INTERNAL New and Changed Features in the SAP HANA Client Client Version Type Description

2.7 New SQLDBC SQLDBC tracing now Tracing supports PACKET sum­ Now Sup­ mary tracing, enabled by ports PACKET hdbsqldbc_cons Summary TRACE PACKET 0 or Tracing PACKET=0.

SQLDBC Tracing

2.7 New SQLDBC Tracing can now be sent to Tracing the application console by to stdout specifying "stdout" or and stderr "stderr" as the trace file name. This is supported through the trace configu- ration tools, hdbsqldbc_cons and hdbodbc_cons, and through the HDB_SQLDBC_TRACEFILE environment variable. Trac­ ing to the console is also supported on a per-con­ nection basis using two new connection properties traceFile and traceOptions.

SQLDBC Tracing

Environment Variables

SQLDBC Connection Prop­ erties

2.7 New JDBC The new Con­ authenticationMethods nec­ tion property provides a comma- Prop­ separated list of authentication er­ methods to be used by the cli­ ties ent. JDBC Connection Proper­ ties

What's New in the SAP HANA Client New and Changed Features in the SAP HANA Client INTERNAL 21 Client Version Type Description

2.7 New Optional The options parame­ Node.js ter specifies the optional Client Pa­ rameters object containing the op­ for the Re­ tions for defining the sult­ representation of rows in Set.getVal­ the result. The ues callback parameter Method specifies the optional callback function.

getValues([Options][, Callback]) Method

2.7 Changed The The old Node.js client threw Node.js errors as JavaScript Ob­ Client jects. Now, the Node.js cli­ Throws Errors ent throws errors as Java­ as Java­ Script Errors. The proper­ Script ties remain the same (mes­ Errors sage, code, sqlState, stack). However, some Node.js functions (for example, “console.log(err)” and “JSON.stringfy(err)”) return different results when using the new Node.js client. Due to this, you may need to make some minor changes in the application code.

2.7 New Node.js The Node.js client now adds a Client unique suffix identifier to dupli­ Added cate column names in a given Suffix to Du­ SQL statement to prevent data pli­ loss. For example, cated connection.exec(“SELECT Col­ 1 A, 2 A FROM DUMMY”) umn returns {‘A’: 1, ‘A:2’: Names 2}. However, since data loss is still possible using this format, it is highly recommended that you specify unique aliases for each column in a SQL statement.

What's New in the SAP HANA Client 22 INTERNAL New and Changed Features in the SAP HANA Client Client Version Type Description

2.7 New JDBC Tracing can now be sent to Trac­ the application console by ing to specifying "stdout" or stdout and "stderr" as the trace file stderr name. This is supported through the trace configura- tion tool (java -jar ngdbc.jar), and through the HDB_JDBC_TRACEFILE envi­ ronment variable. Tracing to the console is also supported on a per-connection basis us­ ing the existing traceFile and traceOptions con­ nection properties.

Environment Variables JDBC Connection Properties JDBC Tracing and Trace Op­ tions

2.7 New Node.js The Node.js client is im­ Client 2.7 plemented as a native Supports add-on using N-API, in­ Node.js 8+ dependent from the un­ Versions derlying JavaScript run­ time. It is Application Bi­ nary Interface (ABI) sta­ ble across versions of Node.js.

2.8 New Windows Cli­ The .NET Framework ent Installa­ examples are now in­ tion Includes cluded with all Micro­ ADO.NET Ex­ soft Windows client amples installations in the examples \ado.net directory.

2.8 New SQLDBC The Connec­ statementRoutingWarnings tion property returns a warning that Proper­ gives information about the routing ties failure of a prepared statement. SQLDBC Connection Properties

What's New in the SAP HANA Client New and Changed Features in the SAP HANA Client INTERNAL 23 Client Version Type Description

2.9 New SQLDBC Enhanced support for and JDBC SAP HANA Cloud redi­ Connections rection to an appropri­ (SAP HANA Cloud) ate internal database server. This improves resource use and query latency.

2.9 New Node.js Provides a callback to re­ Trace Call­ ceive trace messages. back onTrace(traceOptions, callback) Method

2.9 New ODBC The HANA ODBC driver provides a State­ new statement attribute, ment SQL_ATTR_STMT_PACKET_SIZE, At­ to set the network packet for a state­ trib­ ment. ute ODBC Statement Attributes

2.9 New JDBC The HANA JDBC driver provides two new driver-specific extension functions to set and Driver get a packet size per statement: Exten­ ● com..db.jdbc.Driver.setPacketSize( Statement sions to statement, int packetSize ) Set/G ● com.sap.db.jdbc.Driver.getPacketSize( java.sql.Statement et statement ) Packet Size getPacketSize(java.sql.Statement) Method setPacketSize(java.sql.Statement, int) Method

2.9 New golang Driver The golang driver Extension for supports bulk inserts, Bulk Inserts/ updates, and deletes Updates/ via prepared state­ Deletes ments. Bulk Inserts, Up­ dates, and Deletes

2.9 New Check The Node.js driver allows Node.js you to specify that connec­ Con­ tions in the connection pool nection should be tested for viability Liven­ before being reused via the ess poolingCheck=true connection property. Node.js Connection Pooling

What's New in the SAP HANA Client 24 INTERNAL New and Changed Features in the SAP HANA Client Client Version Type Description

2.9 New HANA The Explorer HanaExplorer.vsix Micro­ soft Vis­ has been removed from the ual Stu­ HANA Client installation. dio 2017 Plug-in Has Been Re­ moved

2.9 New Re­ Specify which binaries should be kept move during installation using the environment Node.js variable Plat­ form HDB_NODEJS_INSTALL_PLATFORMS. Binar­ Environment Variables ies During npm Install Phase

2.9 New HDBCLI Three new Cursor methods Python allow for the separation of Driver prepares and executes. Sup­ ports Ex­ These allow for the explicit plicitly creation of prepared state­ Pre­ ment handles without im­ pared mediate execution. State­ ments ● prepare(operation[, newcursor=False]) Method ● executeprepared([pa­ rameters]) Method ● executemanypre­ pared(list_of_parame­ ters) Method

Cursor Class

Related Information

SAP HANA Platform SAP Note 1906576

What's New in the SAP HANA Client New and Changed Features in the SAP HANA Client INTERNAL 25 Important Disclaimers and Legal Information

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What's New in the SAP HANA Client 26 INTERNAL Important Disclaimers and Legal Information What's New in the SAP HANA Client Important Disclaimers and Legal Information INTERNAL 27 www.sap.com/contactsap

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