2 resolution steps for overcoming this error:: 1.Be sure that the OS level user has permission to write to a folder. Example: shows the parameter is in the spfile $ pwd /u01/oracle/product/10.2./db_1/dbs $ strings spfileTEST.ora | grep open *.open_cursors=100 Login to SQL*Plus, scope has to spfile and sid has to be supplied. If existing Streams was deprecated in Oracle Database 12c Release 1 (12.1). symbolic links, you encounter ORA-29283: invalid file operation: path the metadata, then you receive a JOB_TABLE_INTEGRITY warning when you DBMS_XMLSAVE on an earlier release Oracle Database, and change Starting with Oracle Database 18c, use of NEWS_SECTION_GROUP is deprecated in Oracle Text. In this initial release, there are some options available in Flash-based Oracle EM Express that are not available in the JET version. Function or procedure parameters that referenced those PL/SQL package types resulted in publishing all metadata about these types in the ARGUMENTS views, including any nested types. internet (accessed through HTTP or FTP), and for text stored in local file system In the absence of an integration between different cluster solutions, the system is subject to the dueling cluster solutions issue: Independent cluster solutions can make individual decisions about which corrective actions must be taken in case of certain failures. The following DBUA features available in previous releases are removed in Oracle Database 12c release 2 (12.2): Data Files Move: Data files can no longer be moved during upgrades. Reduces maintenance risk with built-in validations and a dry run mode to test the operations. The UTL_FILE_DIR initialization parameter is no longer listed in V$SYSTEM_PARAMETER and related views. Use XQuery Update instead for these functions . These platforms are no longer supported. UTL_FILE Package Symbolic Link in Directory Paths Not Supported Using the UTL_FILE package to access a symbolic link fails in the new Oracle Database release. servers. It can be desupported in a future release. Review these behavior changes to help plan for upgrades to Oracle Database 19c, Parent topic: Behavior Changes, Deprecations and Desupports in Oracle Database 19c. After you upgrade your database, the bug fix patches that can cause execution The desupport includes removing the UseManagedDTC .NET configuration file parameter, and Oracle.ManagedDataAccessDTC.dll. To add/modify/delete a directory path in supplemental utl_file_dir parameter, you need to complete the following steps in a sequence: Get the list of directory path which currently exist in supplemental utl_file_dir parameter. You must extract the image software into the directory where you want your Oracle home to be located, and then run the runInstaller script to start the Oracle Database installation. CTXCAT and CTXRULE indexes store tokens in a table column of type VARCHAR2 (64 BYTE). The supported versions are 11.2, 12.1, 12.2, 18c, and 19c. Starting with Oracle Clusterware 19c (19.5), the integration of vendor or third party clusterware with Oracle Clusterware is deprecated. If a database is plugged into a CDB as a PDB with a predefined PATH_PREFIX, then attempts to use a LIBRARY object that does not use a DIRECTORY object result in an ORA-65394 runtime error. Several Oracle Multimedia DICOM features are desupported in Oracle Database 18c. How can this new ban on drag possibly be considered constitutional? However, Oracle Grid You need to enable the below event as a database initialization parameter at the CDB level to enable this feature. The behavior of StandbyArchiveLocation and StandbyAlternateLocation are not changed. Oracle recommends you accept the default value promotable. For SQL_BUILTIN: When an identifier is a SQL builtin used in a SQL statement issued from PL/SQL, this column is set to YES. SCOPE=SPFILE, WE NEED TO RESTART THE INSTANCE/DATABASE, FOR THE PARAMETER TO REFLECT. The DV_REALM_RESOURCE role is used for the management of realm resources. Starting with Oracle Database 19c, properties for Oracle Data Guard configuration are stored in Oracle Database, instead of an external configuration file. Use JDBC batching instead. Oracle Multimedia will be desupported in Oracle Database 19c. Oracle Database 12c release 2 (12.2) includes several enhancements to DBUA, and some features have been removed or modified. If needed, you can choose to grant these privileges to the DV_REALM_OWNER role. supported. Promotable transactions themselves are not being deprecated. Oracle Database Server Utility UTL_FILE - Ask TOM For more information about using DBMS_OPTIM_BUNDLE to enable However, to make the LIBRARY useful (as opposed to always issuing a runtime error), you must recreate the LIBRARY object so that it uses a DIRECTORY object. The Exafusion feature was introduced for Oracle Database 12c Release 1 (12.1.0.2), but disabled by default. However, this change may prevent DBAs who do not have access to the Oracle installation owner account from administering the database. Starting in Oracle Database 18c, Oracle Multimedia is deprecated. In response to customer requests, and to improve functionality, Database Upgrade Assistant (DBUA) includes new features and code enhancements. The DBMS_DEBUG package is deprecated in Oracle Database 12c release 2 (12.2). ALL/USER/DBA_ARGUMENTS User Views Changes. SCOPE=BOTH, PARAMETER WILL BE CHANGED DYNAMICALLY, No NEED TO RESTART THE INSTANCE/DATABASE. Upgrading Oracle EBS Database to 19c | by Vishnu Vinnakota - Medium OCIDescribeAny() also returns a single row for each parameter type, instead of the multiple rows commonly returned before the change in Oracle Database 12.1. Starting with Oracle Grid Infrastructure 19c, the desupport for direct Starting with Oracle Grid Infrastructure 19c, the desupport for direct placement of OCR and voting files on shared file systems is rescinded for Oracle Standalone Clusters. It is used to insert, update, and delete data from XML documents in object-relational tables. PL/Sql File I/O is generally done using utl_file or fnd_file packages. To preserve whitespace in an XML file, store two copies of your original XML document. Instead of using the addnode script (addnode.sh or addnode.bat), add nodes by using the installer wizard. If you attempt to use an affected feature after upgrade, where that feature used There is no replacement for Oracle Multimedia DICOM. start a conversation with us. OPTIMIZER_ADAPTIVE_PLANS controls adaptive plans. Before upgrade, to help you to identify symbolic upgrade, see My Oracle Support Note 2504078.1: "Desupport of Oracle Real Application If you never use search tokens longer than 64 bytes, it is not necessary to rebuild the index. For example, you can use the ADRCI command show alert to view the alert log: ADRCI also enables you to use the show log command to pass predicates for a query. Their functionality is replaced with the new, Using the Oracle ASM command-line utility. Starting in Oracle Database 19c, several Oracle Data Guard broker properties associated with initialization parameters are deprecated. CRSToken method to change the Windows service user is The preupgrd.sql and utluppkg.sql scripts are replaced by the Preupgrade Information Tool (preupgrade.jar). User accounts created in the earlier release use a case-insensitive password version from an earlier release authentication protocol, such as the 10G password version. Is a bounce of the DB required to set this value? ASM_PREFERRED_READ_FAILURE_GROUPS Initialization Parameter. $ gdsctl add database -connect inst1 -pwd gsm_password. Use DBMS_XMLGEN instead. using. Client clusters, such as Oracle Member Cluster for Database, use the remote GIMR located on the Oracle Domain Services Cluster. However, this support will be removed in an upcoming The possible values are ROWTYPE, TYPE, and CHARSET. To view alert logs, use the Oracle Database utility Automatic Diagnostic Repository Command Interpreter (ADRCI) utility. To enhance security, starting with Oracle Database 19c, the ability to specify passwords from the Global Data Services Control Utility (GDSCTL) command-line when called from the operating system prompt is deprecated. O7_DICTIONARY_ACCESSIBILITY Initialization parameter. You need to source the PDB environment and then run script txkCfgUtlfileDir.pl in getUtlFileDir mode. part of your upgrade test plan. Retirement of RSA technology has been announced. Starting in Oracle Database 19c, Logical Standby properties of Oracle Data Guard broker are deprecated. you can upgrade to Oracle Database 12c release 1 (12.1) or later. Developers no longer need to use this setting if they employ promotable transactions. Creating an XMLIndex index over an XML fragment stored as a CLOB instance embedded in object-relational XMLType data is deprecated. The split information view DM$VPmodel_name describes the decision tree hierarchy, in which you append the name of the Oracle Data Mining model to the view prefix. Clusters (RAC) with Oracle Database Standard Edition 19c.". Review these behavior changes to help plan for upgrades to Oracle Database 18c, Parent topic: Behavior Changes, Deprecations and Desupports in Oracle Database 18c. In Oracle Database 12c Release 2 and later releases, you can run the Parallel Upgrade Utility using command-line batch scripts.catupgrd.sql is no longer distributed. Use the Oracle Data Mining (ODM) Model Details views instead. The possible values are CHAR_CS, NCHAR_CS, and IDENTIFIER, when the character set is derived from another variable identifier. security because it enables file access to be based on directory objects. After the Oracle home is created, you can then use Oracle Database Configuration Assistant (Oracle DBCA) to create an Oracle Database. Priority-Based PDB Upgrades: You can set priority for PDB upgrades, so that higher priority PDBs are upgraded first. Do I have to change all the files from absolute path to directory name? The JSON key name upper limit in Oracle Database 12c Release 2 (12.2.0.2) and later releases is 255 bytes. -- -- alert log -- Obsolete system parameters with specified values: utl_file_dir End of obsolete system parameter listing ERRORCODE = 1 ERRORCODE_END For instance: Note the changes in the create-or-replace package NestedTypesExample: In previous Oracle Database releases, the top-level type of the NestedTypeProc procedure, parameter Param1, Level0Record, is returned, and also an expanded description of all the nested types within Level0Record. Also verify that the new directory path is created/exists at OS level also and it should not have any soft links, as soft links in directory paths have also been deprecated in 19c version. On Windows, to migrate the Microsoft Transaction Service to the new Oracle home, you must also run the command %ORACLE_HOME%\bin\oramtsctl.exe -new. links, including (but not restricted to) Oracle Data Pump, BFILEs, and The V$MANAGED_STANDBY view is deprecated in Oracle Database 12c release 2 (12.2.0.1). To replace other JPublisher automation capabilities, including mapping user-defined SQL types or SQL types, wrapping PL/SQL packages and similar capabilities, Oracle recommends that developers use explicit steps, such as precompiling code with SQLJ precompiler, building Java STRUCT classes, or using other prestructured options. Oracle Administration Assistant for Windows is deprecated in Oracle Database 12c release 2 (12.2). All Data types that the EDS feature supported are now supported natively by both Logical Standby and Oracle GoldenGate. Although DBMS_JOB is still supported for backward compatibility, Oracle strongly recommends that you switch from DBMS_JOB to Oracle Scheduler. Get_* functions. The following Oracle XQuery functions are deprecated. It can be removed in a future release. from Oracle Database Standard Edition to Oracle Database Enterprise Edition. Options for management of consolidated deployments. Windows user other than LocalSystem. The additional information includes constraints placed on the identifiers, and an indicator that notes when a function is a SQL builtin in PL/SQL. Now, starting with 19c database, to add/modify/delete an OS directory path for PL/Sql File I/O with EBS R12, you need to use script txkCfgUtlfileDir.pl provided under $ORACLE_HOME/appsutil path. To provide optimal performance for the increased capability of the database, there can be an increase in the Oracle Database Client and Oracle Database Server can increase from one release to the next. UTL_FILE alter system - Oracle Forums Using the UTL_FILE package to access a symbolic link fails in the Upgrade Oracle EBS 12.2.8 Database to 19.3 (19c): Part 3 - Upgrade DB Starting in Oracle Database 12c release 2 (12.2), the Advanced Replication feature of Oracle Database is desupported. In earlier Oracle Database releases, the PL/SQL compiler collected metadata for all nested types in a PL/SQL datatype. In Oracle Database 12c Release 2 (12.2) and later releases, you can run the Parallel Upgrade Utility (catctl.pl) from the command line by entering the shell commands dbupgrade for Linux and Unix, and dbupgrade.com for Microsoft Windows. Simplifies maintenance by providing automatons which are invoked with a simple, consistent API across database versions and deployment models. Existing applications remain unaffected, whether they use promotable transactions or not. Oracle recommends that you run the Oracle Database or Oracle Grid Infrastructure installer with the option -executeConfigTools. Oracle introduced the Oracle Home User system privileges role for the DB home in To prevent these types of errors, Oracle has desupported and removed this attribute. In Oracle Grid Infrastructure 19c (19.1) and later releases, all nodes in an Oracle Flex Cluster function as hub nodes. Oracle Multimedia objects and The O7_DICTIONARY_ACCESSIBILITY parameter controlled restrictions on System Privileges from accessing SYS owned objects. Enables you to resume or restart the commands in the event of an unforeseen issue, reducing the risk of maintenance operations. Database. Parent topic: Desupported Features in Oracle Database 19c. This role makes the need for the The status information is displayed in the output of the DGMGRL commands SHOW CONFIGURATION and SHOW DATABASE. Share. The change in Oracle Database 12c Release 2 (12.2) and later releases to restrict access by default to the Oracle installation owner account provides greater security than previous configurations. Starting with Oracle Database 12c release 2, the ALTER TYPE statement behavior is also changed. ), Oracle 11.2.0.3 Service Name Mismatch issue, Oracle 19c database instance doesn't register with listener, Oracle 19c Installer hangs with endless Reading from the pipe output, AC Op-amp integrator with DC Gain Control in LTspice. This information is displayed in other columns in these data dictionary views. utl_file_dir parameter. the DBMS_SCHEDULER job is also disabled. Starting with Oracle Database 19c, note the following changes to the way Oracle Data Guard manages property imports and upgrades: Oracle Data Guard broker no longer automatically imports local archiving location properties. We needed to do this when we finally stopped using the old UTL_FILE_DIR database initialization parameter. Parent topic: Behavior Changes, Deprecated and Desupported Features for Oracle Database. features. enhanced, but are still supported for the full life of this release of Oracle The PARALLEL_SERVER_INSTANCES initialization parameter specified the FILE_DATASTORE is deprecated. This change affects all Linux and UNIX platforms. However, you must grant the CREATE JOB privilege to the database schemas that submit DBMS_JOB jobs. For example, the following command is valid: GDSCTL> add database -connect inst1 -pwd gsm_password. Oracle Database 11g Release 1 (11.1) introduced the new streaming asynchronous model for redo transport. With this batch setting, your application processes one row at a time. Clusters. This desupport the WALLET_ROOT initialization parameter, and the Use SQL/XML function XMLSerialize() with a version number instead. Oracle Streams replication functionality is superseded by GoldenGate. The following steps cover how to add/modify/delete a directory path to supplemental utl_file_dir. . Minimizes downtime by deploying new homes as images (called gold images) out-of-place, without disrupting active databases or clusters. The clone.pl script is deprecated in Oracle Database 19c. Oracle Parallel Server was replaced with Oracle Real Deprecating certain clustering features with limited adoption allows Oracle to focus on improving core scaling, availability, and manageability across all features and functionality. PL/SQL procedure DBMS_XDB_ADMIN.CreateRepositoryXMLIndex, PL/SQL procedure DBMS_XDB_ADMIN.XMLIndexAddPath, PL/SQL procedure DBMS_XDB_ADMIN.XMLIndexRemovePath, PL/SQL procedure DBMS_XDB_ADMIN.DropRepositoryXMLIndex, XML schema annotation (attribute) csx:encodingType, XMLIndex index on CLOB portions of hybrid XMLType storage (index on CLOB data that is embedded within object-relational storage). Oracle continues to support the DBMS_JOB package. on a shared file system. Starting with Oracle Database 18c, the methods change for how to create LIBRARY objects in an Oracle Database 18c PDB with a pre-defined PATH_PREFIX. It is removed. Starting with Oracle Database 18c, the Oracle Database software is available as an image file for download and installation. In addition, the following DV_REALM_OWNER privileges are revoked from the DV_REALM_OWNER role: CREATE ROLE, ALTER ANY ROLE, DROP ANY ROLE, GRANT ANY ROLE, GRANT ANY PRIVILEGE, and GRANT ANY OBJECT PRIVILEGE. All Oracle XMLDB configuration functions, procedures, and constants that were moved from package DBMS_XDB to DBMS_XDB_CONFIG are desupported. If you attempt to specify an operating system file directly by using the LOCATION parameter of UTL_FILE.FOPEN, or by using the LOCATION parameter of FOPEN_NCHAR, then those attempts also fail. Database 19c is not possible. new Oracle Database release. SQL92_SECURITY specifies whether users must have been granted the SELECT object privilege to execute such UPDATE or DELETE statements. Oracle Fleet Patching and Provisioning is a service in Oracle Grid Infrastructure that you can use in either of the following modes: Central Oracle Fleet Patching and Provisioning Server. Existing APIs in the DBMS_NETWORK_ACL_ADMIN PL/SQL package and catalog views are deprecated. parameter defines the location of the software keystores for Transparent Data Encryption It's a very simple and straight forward method using DBUA so follow the screens as below: Starting with Oracle Database 18c, Leaf nodes are deprecated as part of Oracle Flex Cluster architecture. files (accessed through the file protocol). Even in earlier releases, the parameter and usage of paths existed only for backward compatibility. Oracle only supports case-insensitive authentication with the following conditions: The server is running in a mode other than an Exclusive Mode, Option for Servers with Accounts Using Only 10G Password Version. To avoid conflicts, only one cluster solution should be active at any point in time. Media Extension (AME). Setting this event reverts the ARGUMENTS views back to the behavior in Oracle Database releases earlier than 12.1, in which DATA_LEVEL can be greater than 0, and descriptive metadata for the type and any nested types is included in the view. desupported in Oracle Database 18c. The SQL*Plus product-level security feature is unavailable in Oracle Database 19c. This role is obsolete, and can be removed in a future release. Oracle Fail Safe is deprecated as of Oracle Database 19c. Database Release 1 (9.0.1). Did you forget running setUtlFileDir during EBS 19c pre-upgrade steps? objects instead. All privileges that were granted to DV_PUBLIC in previous releases are now granted directly to the PUBLIC role. The global GIMR runs in an Oracle Domain Services Cluster. more information about each step, including how to reconfigure your system after an I want to set utl_file_dir parameter in our 2 node RAC environment (24x7)and we are having commomn SPFILE for both these 2 node instances. It was deprecated in Oracle Database 12c Release 2 (12.2). It can be desupported and unavailable in a release after Oracle Database 19c . For example: to replace DBMS_XMLSAVE, you can fixes manually, or use the DBMS_OPTIM_BUNDLE package. Starting with Oracle Database 18c, the Oracle Data Guard broker ALTER command in DGMGRL is desupported. Review for information about Oracle Database 19c changes, deprecations, and desupports, as well as deprecations and desupports in Oracle Database releases 18c, 12.2, and 12.1. This feature is desupported with Oracle Database 19c (19.1). Modern email systems do not support RFC-822. The notice of deprecation for the During EBS pre-upgrade steps, we need to configure UTL_FILE_DIR replacement values using txkCfgUtlfileDir.pl using MOS Document ID: Using UTL_FILE_DIR or Database Directories for PL/SQL File I/O in Oracle E-Business Suite Releases 12.1 and 12.2 (Doc ID 2525754.1). apps.v$parameter2, which provide and store this new supplemental utl_file_dir feature. earlier releases, the DBMS_DATA_MINING package supports a separate But still the value shows as null. Oracle Fleet Patching and Provisioning Client. Oracle recommends that you instead use the directory object feature, which replaces UTL_FILE_DIR. The PromotableTransaction setting is desupported in Oracle Data Provider for .NET 18c, because all database versions compatible with this provider version support promotable transactions. For example, in comparison to Oracle Database 11g Release 2 (11.2), Oracle Database 12c on some platforms can have as much as a 5 MB memory increase for each client, and a 10 MB increase for each server. The parameter was deprecated in Oracle Database 10g release 2 (10.2). If you need to use a supported shared file system, either a Network File System, or a shared cluster file system instead of native disks devices, then you must create Oracle ASM disks on supported network file systems that you plan to use for hosting Oracle Clusterware files before installing Oracle Grid Infrastructure. All Oracle JPublisher features are desupported and unavailable in Oracle Database 12c Release 2 (12.2.0.1). By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. GLOBAL_CONTEXT_POOL_SIZE Initialization Parameter. The Oracle Data Provider for .NET registry setting PromotableTransaction indicates whether the application must keep transactions as local, or if it can begin all single connection transactions as local, and then promote the transaction to distributed when a second connection enlists. As the names imply, these views are similar to the ALL_TYPES view family. In Oracle Hi expert, I'm trying to use UTL_FILE. Oracle recommends that you use the new view V$DATAGUARD_PROCESS. voting disk files directly on shared file systems. 1 (12.1), You have created a custom schema with the name AUDSYS. and other Oracle Database subsystems is secure, because there is a clear privilege You can now obtain postinstallation checks as part of the installation process. As part of your upgrade plan, review the initialization parameters that are deprecated in this Oracle Database release, and review alternatives. However, before Oracle Database 12.1, there was no way to obtain type metadata for PL/SQL package types, such as records and packaged collections. The information in the LABELS and USER_LABELS columns is redundant. How to setup UTL_FILE_DIR values in the 19c database. Parent topic: Desupported Parameters in Oracle Database 19c. The following PL/SQL subprograms in package DBMS_XMLSCHEMA are desupported: There are no replacements for these constructs. The Oracle Exadata Database Machine initialization parameter EXAFUSION_ENABLED is desupported in Oracle Database 19c. However, when you use the broker command, you can be attached to any database in the configuration, and perform parameter changes to any other database in the configuration. Starting with 18c, the UTL_FILE_DIR parameter no longer exists, thus the usage of directory paths instead of directory objects in UTL_FILE is no longer possible. You can also Corresponding functions are the functions that have the same names, but that use the namespace prefix fn. These functions enforce stronger, more up-to-date password verification restrictions. There is no replacement for this parameter. Oracle has deprecated the use of this role. Beginning with Oracle Database 12c release 2 (12.2), the Pre-Upgrade Information Tool scripts preupgrd.sql and utluppkg.sql are no longer supplied as part of the Oracle Database release. Moving from UTL_FILE_DIR to directories implementation - IT World The Oracle Fleet Patching and Provisioning Server stores and manages standardized images, called gold images. The problem with this approach is that deeply nested types can consume extensive memory in the SYS tablespace. If your database has user tables that depend on Oracle Maintained types (for example, AQ queue tables), then you must upgrade these tables manually after upgrade. Oracle Database 12. The MAX_CONNECTIONS attribute of the LOG_ARCHIVE_DEST_n parameters for Oracle Data Guard Redo Transport is obsolete. Starting with Oracle Database 12c release 2 (12.2), you can run the Parallel Upgrade Utility with the -T option to set tables to READ ONLY. The desupport of Oracle Multimedia DICOM includes the following features: Oracle Multimedia Oracle DICOM Component for WebCenter integration (DICOM/UCM). See Oracle Database Security Guide for additional information about Unified Audit records. Grid Infrastructure releases before Release 12c (12.1), it was supported to use the Recompile: The default parallelism for object recompilation is determined by the utlrp script used in manual upgrade. Oracle Database Security Guide for information on configuring privilege and role authorization for database security. Preserving the existing privileges in a table enables you to restore them if the automatic migration fails, or if you want to roll back an upgrade. For example: 2017-05-17T10:00:54.799968+00:00. There is no replacement for DICOM support in Oracle Database. The LogMiner CONTINUOUS_MINE option is still supported for backward compatibility reasons. ATTRIBUTE: This column contains the attribute value when %attribute is used in a variable declaration. Before Oracle Database Release 18c, all Oracle Text index types except SDATA sections stored tokens in a table column of type VARCHAR2 (64 BYTE). You can then use theOracle ASM disks in an Oracle ASM disk group to manage Oracle Clusterware files. Oracle Scheduler replaces the DBMS_JOB package. Oracle Domain Services Cluster locally hosts the GIMR in a separate Oracle ASM disk group. Zero Data Loss Recovery Appliance release 12.2 (Recovery Appliance) does support backups from protected release 12.2 database clients. Also, because there is no way to share the type metadata in the ARGUMENTS views, each parameter with deeply nested types required its own redundant copy of the type metadata. Specify the UTL_FILE_DIR in 10g :-. Starting with Oracle Database 19c, the earlier ACFS replication protocol (repv1) is deprecated. This parameter refers to the logon authentication protocol used for the server, not the Oracle Database release. The functionality of performing a software-only installation, using the gold image, is available in the installer wizard. The set of files and directories that are accessible to the user through UTL_FILE is controlled by a number of factors and database parameters. An RPM-based installation performs a software-only Oracle Database installation and creates an Oracle home. Oracle recommends that you replace this JDBC method in your applications with standard Java methods. How To Set APPLPTMP and UTL_FILE_DIR (Doc ID 2141438.1) Last updated on MAY 10, 2021. There is no replacement for this parameter. To avoid the issue, you must change the directory These deprecated views are replaced with new equivalents in Oracle Database 12c. Table 10-2 Deprecated columns in Oracle Label Security Views. How to update UTL_FILE_DIR in an Oracle E-Business Suite Instance on The PARALLEL_IO_CAP_ENABLED initialization parameter determined if Oracle Database set a limit to the default degree of parallelism to a level no greater than the I/O system supported.

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