The following Primitive types are supported: Structs: the elements within the type can be accessed using the DOT (.) The job and Data Pump control Be aware that they may not apply to your particular operating system and that this documentation cannot anticipate the operating environments unique to each user. For example, you could specify TABLES=employees,jobs or TABLES=employees jobs. For example, TABLE="hr.employees" would preserve the table name in all lower case. Because schema mode is the default mode, it is not necessary to specify the SCHEMAS parameter on the command line, unless you are specifying more than one schema or a schema other than your own. STOP_JOB parameter stops the current job. [list of characters] 4. This parameter allows you to export subsets of data by specifying the percentage of data to be sampled and exported. If you have the DATAPUMP_EXP_FULL_DATABASE role, then you can specify a list of schemas, optionally including the schema definitions themselves and also system privilege grants to those schemas. If only the ENCRYPTION parameter is specified and the Oracle encryption wallet is open, then the default mode is TRANSPARENT. The function redeclares the variable. If only a subset of a table's partitions are exported and the TRANSPORTABLE=ALWAYS parameter is used, then on import each partition becomes a non-partitioned table. To reference the global identifier, the subunit must qualify it with the name of the unit that declared it. The master control process and worker processes acting as query coordinators in parallel query operations do not count toward this total. javac allows any content, whether in source or compiled form, to be patched into any module using the --patch-module option. In case a matching quote is not found, the launcher will abort with an error message. However, some tasks Note: This can only be used when compiling for releases prior to JDK 9. Implicit conversion is allowed for types from child to an ancestor. Specifies the compression algorithm to be used when compressing dump file data. inst1, and writes it to the dump file hr.dmp An argument file can include command-line options and source file names in any combination. The DATA_ONLY option requires that the Oracle Advanced Compression option be enabled. Checks that the API used is available in the specified profile. instance identified by the connect identifier, retrieves data from that database The object_type specifies the type of object that you want to exclude. You can also use alternate forms of the option: -classpath or -cp. try: Warns about the issues relating to the use of try blocks ( that is, try-with-resources). PL/SQL source text that uses nonbasic characters can be stored and compiled only in databases whose database character sets support those nonbasic characters. The output of the aggregations or simple selects can be further sent into multiple tables or even to hadoop dfs files (which can then be manipulated using hdfs utilities). When the compilation has been completed, if you are compiling one or more modules, you can place the output directory on the module path for the Java launcher; otherwise, you can place the place the output directory on the class path for the Java launcher. In the Explorer pane, expand your project, and then select a dataset. The estimate is printed in the log file and displayed on the client's standard output device. Whitespace characters: space, tab, new line, and carriage return. The following examples highlight some salient features of the system. Increase or decrease the number of active worker processes for the current job. See [Compiling for Other Releases of the Platform]. We define another parameter hive.exec.dynamic.partition.mode=strict to prevent the all-dynamic partition case. * and jdk. Note that user hr is allowed to specify more than one schema, because the DATAPUMP_EXP_FULL_DATABASE role was previously assigned to it for the purpose of these examples. A preprocessor control token identifies code that is processed before the PL/SQL unit is compiled. For JDK 9 or later, see --system. A full transportable export exports all objects and data necessary to create a complete copy of the database. The compiler generates the following warning for the definition of the method ArrayBuilder.addToList: When the compiler encounters a varargs method, it translates the varargs formal parameter into an array. As a result, this might cause an unexpected InvalidClassExceptions during deserialization. The NOLOGFILE=YES parameter indicates that an Export log file of the operation is not generated. It is not applicable to Flashback Database, Flashback Drop, or Flashback Data Archive. This class path overrides the user class path in the CLASSPATH environment variable. javac -classpath /examples /examples/greetings/Hi.java, C:\>javac -classpath \examples \examples\greetings\Hi.java. Compiles source code according to the rules of the Java programming language for the specified Java SE release. In Example 2-13, the variable acct_id acquires the NOT NULL constraint explicitly, and the variables a, b, and c acquire it from their data types. The module's declaration is represented by the file module-info.java in the a.b.c directory. Use of Quotation Marks On the Data Pump Command Line. are running at any given time. The code to be compiled may refer to types in additional source files that are not specified on the command line. The START_JOB command restarts the current job to which you are attached (the job cannot be currently executing). The values listed in the OBJECT_PATH column are the valid object types. The usual case is that the partition columns are a prefix of sort columns, but that is not required. Specifying EXCLUDE=GRANT excludes object grants on all object types and system privilege grants. Export provides different modes for unloading different portions of Oracle To use the transportable option during a table-mode export, specify the TRANSPORTABLE=ALWAYS parameter with the TABLES parameter. Birthday: Normally, Data Pump Export will return an error if you specify a dump file name that already exists. If only the ENCRYPTION_PASSWORD parameter is specified, then the ENCRYPTION parameter defaults to ALL. However, some tasks that were incomplete at the time of shutdown may have to be redone at restart time. is made to create a new file, if the file specification contains a substitution Thus, the timestamp will be adjusted by the local time zone to match the original point in time. Progress and error information is still written to the standard output device of any attached clients, including the client that started the original export operation. The specified objects and all their dependent objects are exported. An increase takes effect immediately if there are sufficient files and resources. Java's "Instant" timestamps define a point in time that remains constant regardless of where the data is read. An inquiry directive provides information about the compilation environment. METADATA_ONLY specifies that only metadata is written to the dump file set in encrypted format. the export job. The substitutions continue up to the largest number substitution allowed, which is 2147483646. You can mix the wildcard characters in a pattern. If the job needs extra files because the maximum file size is reached, or to keep parallel workers active, then additional files are created if file templates with substitution variables were specified. For example, you could perform the following query: The output of this query looks similar to the following: Use Oracle Data Pump parameters for Export (expdp) to manage Example 2-41 Changing Evaluation Order of Logical Operators. Source files must have a file name extension of .java. Books about Hive lists some books that may also be helpful for getting started with Hive. FULL=YES indicates that all data and metadata are to be exported. Example 2-53 Searched CASE Expression with WHEN IS NULL. DATA_ONLY results in all data being written to the dump file in compressed format. If the class is part of a package, then the compiler puts the native header file in a subdirectory that reflects the module name (if appropriate) and package name. Some operating systems may require an additional set of single or double quotation marks on the command line around the entire parameter value containing the special characters. If the NETWORK_LINK parameter is specified along with the QUERY parameter, then any objects specified in the query_clause that are on the remote (source) node must be explicitly qualified with the NETWORK_LINK value. remapped. All objects with storage that are selected for export must have all of their storage segments either entirely within administrative, non-transportable tablespaces (SYSTEM/SYSAUX) or entirely within user-defined, transportable tablespaces. Specifies the name, and optionally, a directory, for the log file of the export job. The default value is. Note that the following lists have no line-continuation characters. The referencing item inherits the following from the referenced item: Constraints (unless the referenced item is a column). If you have the DATAPUMP_EXP_FULL_DATABASE role, then you can specify a list of schemas, optionally including the schema definitions themselves and also system privilege grants to those schemas. The name_clause applies only to object types whose instances have names (for example, it is applicable to TABLE, but not to GRANT). Note that if the multiplication causing overflow, you will have to cast one of the operators to a type higher in the type hierarchy. It is a widely adopted convention that module names and package names begin with a lower-case letter, and that class names begin with an upper-case letter. opens: Warns about the issues related to module opens. Generates only the kinds of debugging information specified by the comma-separated list of keywords. When the value of on_hand is zero, the value of the left operand is TRUE, so PL/SQL does not evaluate the right operand. To perform an immediate shutdown, specify Specifies the method that Export will use to estimate how much disk space each table in the export job will consume (in bytes). The following examples are provided to illustrate these concepts. It exits Export and returns to the terminal prompt. For more information about SQL syntax notation, see Oracle Database SQL Language Reference. When you are attached to the job, Export displays a description of the job and then displays the Export prompt. executing or stopped job. The possible values correspond to a process order number in the For example, if a table is inside the transportable set, but its index is not, then a failure is returned, and the export operation is terminated. Otherwise, an error is In a constant declaration, the initial value is required. The location of these hierarchies are specified to javac with command-line options, whose names typically end in "path", like --source-path or --class-path. Therefore, the directory object can point to local storage for that instance. Examples of system schemas that are not exported by default include SYS, ORDSYS, and MDSYS. In a package hierarchy, directories and subdirectories are used to represent the component parts of the package name, with the source file or compiled class file for a type being stored as a file with an extension of .java or .class in the most nested directory. Types in packages on the class path and/or source path: If both are specified, javac looks for compiled class files on the class path and for source files on the source path. An example of a default name is 'SYS_EXPORT_TABLESPACE_02'. point to local storage for that instance. It is not applicable to Flashback Database, Flashback Drop, or Flashback Data Archive. Detach all currently attached client sessions and terminate the current job. For information about plsql_identifier, see "Identifiers". This means that the system to which the expdp client is connected contacts the source database referenced by the source_database_link, retrieves data from it, and writes the data to a dump file set back on the connected system. Some of the examples require the DATAPUMP_EXP_FULL_DATABASE and DATAPUMP_IMP_FULL_DATABASE roles. WebIn this query, the ESCAPE clause specified that the character ! Used to stop the job after it is initialized. Example 2-2 Invalid Case-Insensitive Reference to Quoted User-Defined Identifier. javac expects that the physical arrangement of source files in directories of the file system will mirror the organization of classes into packages, and packages into modules. If no mode were specified, then the default mode, SCHEMAS, would be used. in posix regular expressions), and the % character in B matches an arbitrary number of characters in A (similar to . If the option begins with a double dash (--), the argument may be separated either by whitespace or by an equals (=) character with no additional whitespace. You cannot export transportable tablespaces and then import them into a database at a lower release level. The arguments within a file can be separated by spaces or new line characters. function -- the name of the function within the PL/SQL that will be called to remap the column table in each row of the specified table. However, it can include a substitution Locations on the source path should be organized in a package hierarchy. javac - read Java declarations and compile them into class files, javac [options] [sourcefiles-or-classnames]. The use of synonyms as values for the REMAP_DATA parameter is not Specifies the type of security to use when encryption and decryption are performed. Enables you to filter what Export unloads: data only, metadata only, or both. Such warnings cannot be suppressed with the @SuppressWarnings annotation. Example 2-60 invokes the procedure DBMS_PREPROCESSOR.PRINT_POST_PROCESSED_SOURCE to print the post-processed form of my_pkg (from Example 2-59). This example assumes that tablespace tbs_1 exists and that it has been set to read-only. The schema defaults to that of the current user. The way that javac locates the declarations of those types depends on whether the reference exists within code for a module or not. The language also supports union all, for example, if we suppose there are two different tables that track which user has published a video and which user has published a comment, the following query joins the results of a union all with the user table to create a single annotated stream for all the video publishing and comment publishing events: Array columns in tables can be as follows: Assuming that pv.friends is of the type ARRAY (i.e. When transporting a database over the network using full transportable export, auditing cannot be enabled for tables stored in an administrative tablespace (such as SYSTEM and SYSAUX) if the audit trail information itself is stored in a user-defined tablespace. During this process, RMAN creates (and optionally imports) a Data Pump export dump file that contains the recovered objects. If these requirements are not met, then the import job aborts before anything is imported. This includes all of the following options: If you use the --source/-source or --target/-target options, you should also set the appropriate platform classes using the boot class path family of options. Because each active worker processor I/O server process writes exclusively to one If no value is entered, or if the parameter specifies whether to encrypt data before writing it to the dump file operation, and that you ensure the table is created in an encrypted tablespace. To obtain a more accurate size estimate for compressed tables, use ESTIMATE=STATISTICS. Once this is done, the user can transform the data and insert them into any other Hive table. If the value of one expression is NULL, then the result of the comparison is also NULL. If HELP=YES is specified, then Export displays a summary of all Export command-line parameters and interactive commands. other encryption-related parameters that do require that option. Be sure to read the following sections before using the Export parameters: "Use of Quotation Marks On the Data Pump Command Line". For information about the national character set, see Oracle Database Globalization Support Guide. parameter with the CLUSTER=YES parameter. Oracle recommends that you use the default option (AUTOMATIC) whenever possible because it allows Data Pump to automatically select the most efficient method. A system-generated name of the form SYS_EXPORT__NN. necessary to have Oracle Advanced Security Transparent Data Encryption You can use the DBMS_FILE_TRANSFER package or the RMAN CONVERT command to convert the data. Arguments of types other than RAW can be specified only if they can be implicitly converted to RAW. For more information about the concatenation operator, see "Concatenation Operator". parallel input/output (I/O) server processes. METADATA_ONLY results in all metadata being written to the dump file in compressed format. Specifies whether the transportable option should be used during a table mode export (specified with the TABLES parameter) or a full mode export (specified with the FULL parameter). exported in parallel. The dump file dataonly.dmp is created in dpump_dir1. Guide for more information about TDE. If you start a Data Pump job on instance A and specify CLUSTER=YES and SERVICE_NAME=my_service, then workers can be started on instances A, B, and C only. If the module contains package p.q.r, then the a.b.c directory contains the directory tree p\q\r (on Windows) or p/q/r (on other systems). The API for annotation processors is defined in the javax.annotation.processing and javax.lang.model packages and subpackages. For example, if the file /tmp/pv_2008-06-08.txt contains comma separated page views served on 2008-06-08, and this needs to be loaded into the page_view table in the appropriate partition, the following sequence of commands can achieve this: *This code results in an error due to LINES TERMINATED BY limitation, FAILED: SemanticException 6:67 LINES TERMINATED BY only supports newline '\n' right now. The INCLUDE and EXCLUDE parameters are mutually exclusive. The Data Pump Export command-line utility ENCRYPTION_PWD_PROMPT specifies whether Data Pump should prompt you for the encryption password. The following example shows a simple use of the TABLES parameter to export three tables found in the hr schema: employees, jobs, and departments. The following objects cannot be exported in parallel: The minimum size for a file is ten times the default Oracle Data Pump block size, It defaults to a schema-mode export because no export mode is specified. Because CLUSTER=NO is specified, the job uses only the instance on which it started. interval for logging mode status. The byte representation of a single character is called a character code. FILESIZE parameter redefines the maximum size of subsequent dump In other words, it will match any last name that starts with Je and has at least 3 characters: The ESCAPE clause allows you to find strings that include one or more wildcard characters. TRANSPARENT mode enables you to create an encrypted dump file set without any intervention from a database administrator (DBA), provided the required wallet is available. Unless annotation processing is disabled with the -proc:none option, the compiler searches for any annotation processors that are available. To make use of the TRANSPORTABLE parameter, the COMPATIBLE initialization parameter must be set to at least 11.0.0. for this option is to mask data when moving from a production system to a test A table-specific query overrides a query applied to all tables. STORED AS SEQUENCEFILE indicates that this data is stored in a binary format (using hadoop SequenceFiles) on hdfs. WebEscaping Wildcard characters in Like Clauses The LIKE keyword allows for text scanning searches. A job that is terminated using KILL_JOB cannot be restarted. The following is an example of using the DUMPFILE parameter: The dump file, exp1.dmp, is written to the path associated with the directory object dpump_dir2, because dpump_dir2 was specified as part of the dump file name, and therefore overrides the directory object specified with the DIRECTORY parameter. The warning is not issued when the -implicit option is explicitly set. The content of an example parameter file, hr.par, might be as follows: You could then issue the following Export command to specify the parameter file: The Data Pump Export command-line utility QUERY parameter enables you to specify a query clause that is used to filter the data that gets exported. This restriction means that if you subsequently import the dump file, and the type does not already exist in the destination database, then the table creation fails. Specifies the frequency at which the job status display is updated. Adds a suffix to the bootstrap class path. The static constant must always be referenced as package_name.constant_name, even in the body of the package_name package. This status information is written only to your standard output device, not to the log file (if one is in effect). Note: the options for the class path and module path are not mutually exclusive, although it is not common to specify the class path when compiling code for one or more modules. In order to load data into all country partitions in a particular day, you have to add an insert statement for each country in the input data. For example, suppose that a table is created as follows, with an encrypted column whose key is xyz: When you export the emp table, you can supply any arbitrary value for ENCRYPTION_PASSWORD. When the javac command encounters an argument beginning with the at sign (@), it expands the contents of that file into the argument list. The following types of database links are supported for use with Data Pump Export: Public shared user (only when used by link owner), Private shared user (only when used by link owner), Private fixed user (only when used by link owner). supported. It does not mean that the database will retrieve exactly that amount of rows from the table. serial: Warns about the serializable classes that do not provide a serial version ID. For example, Specifies the current day of the month from the Gregorian calendar in format, Specifies the month in the Gregorian calendar in format. Note: When using --release to specify a release that supports the Java Platform Module System, the --add-exports option cannot be used to enlarge the set of packages exported by the Java SE, JDK, and standard modules in the specified release. Note: Database compatibility must be set to 9.2 or later. The pattern can include the two wildcard characters underscore (_) and percent sign (%). The log file will be written to expfull.log in the dpump_dir1 directory. Then, do The Data Pump Export command-line mode TTS_CLOSURE_CHECK parameter is used to indicate the degree of closure checking to be performed as part of a Data Pump transportable tablespace operation. The lexical units of PL/SQL are its smallest individual componentsdelimiters, identifiers, literals, and comments. The previous example works because the default user class path is the directory that contains the package directory. EXCLUDE=REF_CONSTRAINT excludes referential integrity (foreign key) constraints. For network exports, the ENCRYPTION_PASSWORD parameter in conjunction with ENCRYPTION=ENCRYPTED_COLUMNS_ONLY is not supported with user-defined external tables that have encrypted columns. The supported values of release are the current Java SE release and a limited number of previous releases, detailed in the command-line help. The following is an example of using the PARALLEL parameter: This results in a schema-mode export (the default) of the hr schema, in which up to four files can be created in the path pointed to by the directory object, dpump_dir1. ENABLE_SECURE_ROLES parameter prevents inadvertent use of protected roles during Because List is a parameterized interface, always specify its type argument. If you start a Data Pump job on instance D, and specify CLUSTER=YES, and SERVICE_NAME=my_service, then workers can be started on instances A, B, C, and D. Even though instance D is not in my_service it is included because it is the instance on which the job was started. For this explanation, assume that a searched CASE expression has this syntax: The searched CASE expression returns the first result for which boolean_expression is TRUE. Different operating systems also have other restrictions on table naming. Hive supports the following built in functions: The following built in aggregate functions are supported in Hive: Ability to filter rows from a table using a WHERE clause. For example, you may want to find contacts whose last names start with 'St' or first names end with 'er'. Only object types explicitly specified in INCLUDE statements, and their dependent objects, are exported. The following example assumes a package named remap has been created that contains functions named minus10 and plusx which change the values for employee_id and first_name in the employees table. processes (child and parallel child processes). When the int method is called, it returns a value of 0. The wildcard matches any single character or set of characters specified between the brackets in a SQL statement. A table mode export is specified using the TABLES parameter. In a trigger or an anonymous block, the first conditional compilation directive cannot appear before the keyword DECLARE or BEGIN, whichever comes first. This example exports the partitions, sales_Q1_2012 and sales_Q2_2012, from the table sales in the schema sh. To perform a Data Pump Export using Oracle Automatic Storage Management (Oracle ASM), you must specify a LOGFILE parameter that includes a directory object that does not include the Oracle ASM + notation. Also as a general rule, path options whose name includes the word module, like --module-path, are used to specify module hierarchies, although some module-related path options allow a package hierarchy to be specified on a per-module basis. When compiling code for multiple modules, the contents of the output directory will be organized in a module hierarchy, with the contents of each module in a separate subdirectory, each organized as a package hierarchy. After a round occurs where no new source files are generated, the annotation processors are called one last time, to give them a chance to complete any remaining work. Although annotations processors process elements (declarations) that exist in the compilation environment, the annotation processor itself is executed in the runtime environment. WebExample - Using % wildcard (percent sign wildcard) The first Oracle LIKE example that we will look at involves using the % wildcard (percent sign wildcard). Be aware that if you specify CONTENT=METADATA_ONLY, then afterward, when the dump file is imported, any index or table statistics imported from the dump file are locked after the import. You can then specify that file on the command line, instead of entering all of the individual commands. This is an operator that is commonly utilized in the WHERE clause of SQL to hunt for a particular arrangement of characters. If you want to load into multiple partitions, you have to use multi-insert statement as illustrated below. Therefore, the first sub-block cannot reference the global variable a; it can reference only its local variable a. Specifies the system change number (SCN) that Export will use to enable the Data Pump control job table. Compiling for Earlier Releases of the Platform, Compiling for Earlier Releases Of The Platform. If the object_type you specify is CONSTRAINT, GRANT, or USER, then be aware of the effects, as described in the following paragraphs. The Oracle Data Pump Export command-line utility CLUSTER Whereas, when you perform an export using the NETWORK_LINK parameter, the export is performed using a database link. It consists of a SQL operator and the values against which the object names of the specified type are to be compared. For a complete description of the parameters available in the command-line interface, see "Parameters Available in Export's Command-Line Mode". Table names specified on the command line cannot include a pound sign (#), unless the table name is enclosed in quotation marks. You can start an instance of a Java Virtual Machine directly and use command line options and API to configure an environment in which javac can be invoked via one of its APIs. default value of 0 is used, then the periodic status display is turned off, and The option may be given at most once for any given module. If the source database is read-only, then the user on the source database must have a locally managed temporary tablespace assigned as the default temporary tablespace. Increase or decrease the number of active worker processes for the current job. You can specify the time in any format that the DBMS_FLASHBACK.ENABLE_AT_TIME procedure accepts. In Example 2-1, the quoted user-defined identifier "HELLO", without its enclosing double quotation marks, is a valid ordinary user-defined identifier. These examples deal specifically with escaping characters in Oracle. Escaping SQL Wildcard Characters. For a complete description of the commands available in interactive-command mode, see "Commands Available in Export's Interactive-Command Mode". The service name is only used to determine the resource group and instances defined for that resource group. When you start an export operation and specify a connect identifier, the local Export client connects to the database instance identified by the connect identifier, retrieves data from that database instance, and writes it to a dump file set on that database instance. When the type information is found in a source file and no -implicit option is specified, the compiler gives a warning that the file is being compiled without being subject to annotation processing. In a full database export, the entire database is unloaded. The job name is Exit interactive mode and enter logging mode. The following shows an example of using the ESTIMATE_ONLY parameter to determine how much space an export of the HR schema will take. By default, one character is greater than another if its binary value is larger. This execution set consists of a combination of worker processes and Example 2-38 NULL Value in Unequal Comparison. For information about this parameter, see "Assigning Values to Inquiry Directives" and Oracle Database Reference. 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