What s New for.net Developers in Oracle Database

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2 What s New for.net Developers in Oracle Database Alex Keh Christian Shay Product Managers Server Technologies September 22, 2016

3 Program Agenda Release Timelines ODAC 12c Release 4 Cloud Oracle Database 12c Release 2 ODAC

4 Release Timelines 4

5 ODAC Release Timeline ODAC 12c Release 4 ODT and ODP.NET for Oracle Public Cloud October 2015 April 2016 September 2016 Upcoming ODP.NET NuGet Update Oracle Database 12.2 & ODAC

6 ODAC 12c Release 4 6

7 ODAC 12c Release 4 Major New ODP.NET Features.NET Framework 4.6 and certified High Availability Transaction Guard Streamlined app code needed for transaction recovery Added managed ODP.NET support Service Relocation Connection Timeout

8 ODAC 12c Release 4 Major New ODP.NET Features ODP.NET, Managed Driver Security Features Network Data Encryption Secure External Password Store Microsoft Local Security Authority Kerberos credential cache Data Integrity/Checksumming (April, 2016 NuGet) Transport Layer Security (TLS) 1.1 and 1.2 (April, 2016 NuGet)

9 ODAC 12c Release 4 Major New ODT and ASP.NET Provider Features ODT Visual Studio 2015 Offline Schema Compare (Beta) ASP.NET Providers NuGet installation MSI installation Managed ODP.NET support

10 .NET for the Oracle Cloud 10

11 The Best Cloud Database for Developers Popular language drivers ODP.NET Multiple interfaces Full Oracle Net (SQL*Net) REST API, JSON storage Documents & collections Updated tools ODT SQL Developer, Data Modeler Powerful new command-line DATABASE 12 c R2 Oracle SQL Developer Oracle APEX 11

12 Oracle Database Exadata Express Cloud Service Connect from On-premises Use ODP.NET and ODT 12.1 for Oracle Public Cloud or higher ODT for VS 2015 and VS 2013 Managed and unmanaged ODP.NET How to connect: Developing.NET Applications for Oracle Database Exadata Express Cloud Service Uses Oracle Net Services with Oracle Wallet to secure connection

13 Oracle Database Cloud Service (non-exadata Express) Connect from On-premises Use ODP.NET and ODT 12.1 for Oracle Public Cloud or higher ODT for VS 2015 and VS 2013 Managed and unmanaged ODP.NET How to connect: Developing.NET Applications for Oracle Database as a Service Secure Shell (SSH) required to secure connection Use SSH client to create tunnel, such as PuTTY PuTTY can also generate private and public SSH key pair

14 Oracle Compute Cloud Service Deploy.NET applications to Oracle IaaS on Windows Windows 2012 R2 and Windows 2008 R2 VMs available from Oracle Cloud Marketplace to Free during promotional period Deploy to Oracle Compute Deploy and configure IIS,.NET, and ODP.NET apps to Oracle Compute How To White Paper: Deploying Microsoft Web Application Server on Oracle Compute Cloud Service

15 Oracle Database 12c Release 2.NET Features 15

16 New ODP.NET 12.2 Features Managed and Unmanaged ODP.NET.NET Framework certification DB identifier maximum character limit increased to 128 bytes Can now use longer, meaningful names for all schema objects

17 New ODP.NET 12.2 Features Unmanaged ODP.NET Application Continuity for unplanned database outages TAF enhancements Sharding Managed ODP.NET.NET OracleBoolean data type For use with PL/SQL Booleans

18 Application Continuity (AC) High Availability Recover seamlessly after unplanned DB outages AC replays in-flight work on recoverable errors No additional ODP.NET coding required to use Application Continuity=true (default) in the connection string Transparent to end users (except for a slight delay) Masks hardware, software, network, storage errors, and timeouts Available with RAC, RAC One Node, and Active Data Guard

19 Sharding Scalability Type of DB partitioning that separates very large databases the into smaller, faster, more easily managed shards Data dependent routing added to ODP.NET to access shard data ODP.NET and sharding typical use 1. App specifies sharding key and/or super sharding key before establishing connection 2. ODP.NET connects to specific sharded instance that holds the data associated with the specified keys 3. Data is retrieved

20 ODP.NET Sharding Code Sample Setting ShardingKey and ShardGroupKey for returning correct shard connection using System; using Oracle.DataAccess.Client; class Sharding { static void Main() { OracleConnection con = new OracleConnection(<Connection String>); //Setting a shard key OracleShardingKey shardingkey = new OracleShardingKey(OracleDbType.Int32, 123); //Setting a second shard key value for a composite key shardingkey.setshardingkey(oracledbtype.varchar2, "gold"); //Creating and setting the super shard key OracleShardingKey supershardingkey = new OracleShardingKey(); supershardingkey.setshardingkey(oracledbtype.int32, 1000); //Setting super sharding key and sharding key on the connection con.setshardingkey(shardingkey, supershardingkey); con.open(); //perform SQL query } }

21 ODAC

22 ODAC 12.2 Managed and Unmanaged ODP.NET Planned Features Connection Open event ODP.NET connection pool tagging ODP.NET Database Resident Connection Pooling (DRCP) Oracle Multitenant improvements Oracle Edition-Based Redefinition improvements Schema Compare 24

23 Connection Open Event Ease of Use Developers provide custom code, which is executed prior to dispensing connection Benefit: centralized place for initialization/customization before using connection E.g. set session settings and tags 25

24 Connection Pool Tagging Scalability and Performance Identify connections with specific settings using tags i.e. American users or French users i.e. gold customers or platinum customers ODP.NET searches pool for matching tag and retrieves that connection to be opened Benefit: no round trips to set session settings for every new connection Supports single tags only 26

25 Connection Pool Tagging APIs New OracleConnection properties string RequestTag {set; get;} Set before Open() string Tag {set; get;} Set before Close() to associate a tag with the connection string ReturnTag {get;} Tag associated with the connection returned from Open() 27

26 Connection Pool Tagging and Open Event Code Sample String constr = <connection string>"; OracleConnection con = new OracleConnection(constr); con.connectionopenevent += OpenEvent; con.requesttag = JA"; con.open(); static void OpenEvent(OracleOpenEventArgs args) { OracleConnection con = args.connection; if (con.requesttag == con.returntag) { //Found the connection matching the tag } else { //Tag-matching connection not found. Do processing to match tag con.tag = JA"; } } 28

27 Database Resident Connection Pooling Scalability DRCP pools connections at DB server level Pools "dedicated" servers Pooled server = equivalent of combined server foreground process and DB session Supports large numbers of client connections and across middle-tiers Enable DRCP using (SERVER=POOLED) in TNS descriptor No ODP.NET code changes required New OracleConnection properties string DRCPConnectionClass; share one server pool across multiple mid-tier pools bool DRCPConnectionPurity; returns a new DRCP connection 29

28 Database Resident Connection Pooling TNS Descriptor and Code Sample oracle = (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=slc05mra)(PORT=5521)) (CONNECT_DATA=(SERVICE_NAME=test.rdbms.dev.us.oracle.com)(SERVER=POOLED))) using System; using Oracle.DataAccess.Client; class DRCP { static void Main() { string constr = <connection string>"; OracleConnection con = new OracleConnection(constr); con.drcpconnectionclass = "classa"; con.requesttag = A1"; con.open(); } } 30

29 Oracle Multitenant Enhancement Scalability Support for multiple PDBs in the same pool No longer need separate pool for each PDB Switch between PDBs in the same pool Requires PDBs to be in same CDB and the same user Switching requires closing the connection to the old PDB and opening a connection to the new PDB Set OracleConnection PDBName and PDBServiceName properties to identify PDB connection from pool to use 31

30 Oracle Multitenant Enhancement Code Sample using System; using Oracle.DataAccess.Client; class Multitenant { static void Main() { // Create a connection string constr = <connection string>"; OracleConnection con = new OracleConnection(constr); } } // Set the pdb and service names con.pdbname = "US"; con.pdbservicename = "HRDB"; con.open(); 32

31 Oracle Edition-Based Redefinition Enhancement Ease of Development Connections to multiple editions can now co-exist in the same pool DB Edition name can now be set at the OracleConnection level Switch between Editions in the same application and/or pool Requires same user if switching editions in same pool Switching requires closing the connection to the old Edition and opening a connection to the new Edition Set OracleConnection.DatabaseEditionName property before Open() 33

32 Oracle Edition-Based Redefinition Enhancement Code Sample using System; using Oracle.DataAccess.Client; class Editions { static void Main() { // Create a connection string constr = <connection string> ; OracleConnection con = new OracleConnection(constr); // Set the edition name before Open() con.databaseeditionname = "EditionX"; con.open(); con.close(); con.databaseeditionname = "EditionY"; con.open(); } } 34

33 Offline Schema Compare in Visual Studio Running Database Instance Oracle Database Project V2 (SQL Scripts in source control)

34 Offline Schema Compare in Visual Studio Schema Comparison using SQL Scripts in Database Project Version 2 Beta in ODT , production in 12.2 Import your schema into DBProjv2 Creates a set of standardized SQL scripts, one for each SQL statement One CREATE statement per file by convention Check the scripts into source control Can Build a single Schema create script merging all the SQL scripts into one file

35 Offline Schema Compare Compare DB Project v2 against your live DB instance and view diffs Generate deployment script to make live DB schema equal to DBProjv2 Automatically update DB Project v2 scripts to equal live DB

36 Offline Schema Compare in Visual Studio

37 Offline Schema Compare in Visual Studio

38 Additional Oracle.NET Resources OTN otn.oracle.com/dotnet Twitter twitter.com/oracledotnet YouTube youtube.com/oracledotnetteam and

39 Upcoming.NET Sessions Meet the Oracle Programming and Scripting Experts Tuesday 6:15 PM Moscone South Best Practices for Performance Part 2:.NET and Oracle Database Thursday- 10:45 AM Marriott Marquis - Salon 10/11 PL/SQL Programming for.net Developers: Tips, Tricks, and Debugging Thursday 12:00 PM Marriott Marquis - Salon 10/11 What s New for.net Developers in Oracle Database Thursday 1:15 PM Park Central Concordia Best Practices for High Availability:.NET and Oracle Database Thursday 2:30 PM Park Central Concordia

40 Q&A 42

41 Safe Harbor Statement The preceding is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle s products remains at the sole discretion of Oracle. 43

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