Download free Download Sql Loader Control File Will Turn Off Database Logging Free Software10/29/2016 Oracle Enterprise Manager Database Control. SQL Tuning Advisor; SQL Loader - Lob File. Is there a SQL*Unloader to download data to a flat file? Turn off database logging by. Oracle Architecture FAQ. The size of this block is decided by LOG. Size that can be used is stored inparameter named JAVA. Parameter thatstores the maximum size is LARGE? Explain the files used by SQL Loader to load file. SQL*Loader supports various load formats, selective loading, and multi- table loads. When a control file is fed to an SQL*Loader, it writes messages to the log file, bad rows to the bad file and discardedrows to the discard file. Control file. The SQL*Loader control file contains information that describes how the data will be loaded. It contains the tablename, column datatypes, field delimiters, etc. Log File. The log file contains information about the SQL*loader execution. It should be viewed after each SQL*Loader job iscomplete. Explain the methods provided by SQL Loader. Answer Conventional Path Load. Direct Path Load. What is the physical and logical structure of oracle? Answer Logical Database structures. Logical structures include tablespaces, schema objects, data blocks, extents and segments. Tablespaces. Database is logically divided into one or more tablespaces. Each tablespace creates one or more datafiles tophysically store data. Let us assume a load with the following SQL*Loader control file. SQL> select bytes from dba. Download Scripts to create a database. I was reading Database Utilities http:// the quotes off? I have the O'Reilly SQL*Loader text and. 11 Conventional and Direct Path Loads. Example 11-1 Setting the Date Format in the SQL*Loader Control File. To turn the multithreading option on or off. 2016 New 1Z0-060 Exam Dumps For Free (VCE and PDF) (41-60) . Schema objects. Schema objects are the structure that represents database's data. Schema objects include structures such as tables,views, sequences, stored procedures, indexes, synonyms, clusters and database links. Data Blocks. Data block represents specific number of bytes of physical database space on disk. Extents. An extent represents continuous data blocks that are used to store specific data information. Segments. A segment is a set of extents allocated for a certain logical structure. Physical database structure. The physical database structure comprises of datafiles, redo log files and control files. Oracle Loader for Hadoop. Ora. Loader uses the standard methods of specifying configuration properties in the hadoop command. You can use the - conf option to identify configuration files, and the - D option to specify individual properties. A configuration file showing all Ora. Loader properties is in $OLH. This setting limits the number of records that can be lost when the record reject limit (oracle. Limit) is reached and the job stops running. The oracle. hadoop. Bad. Records property must be set to true for a flush interval to take effect. Factors. Type: Decimal. Default Value: BASIC=5. OLTP=5. 0,QUERY. The value is a comma- delimited list of name=value pairs. The name can be one of the following keywords. ARCHIVE. It applies only to JDBCOutput. Format and OCIOutput. Format. Specify a value greater than or equal to 1. Although the maximum value is unlimited, very large batch sizes are not recommended because they result in a large memory footprint without much increase in performance. A value less than 1 sets the property to the default value. This property enables the OCI client to connect to the database using different connection parameters than the JDBC connection URL. The following example specifies Socket Direct Protocol (SDP) for OCI connections. All characters up to and including the first at- sign (@) are removed. Type: String. Default Value: Not defined. Description: Password for the connecting user. Oracle recommends that you do not store your password in clear text. Use an Oracle wallet instead. Time. Zone. Type: String. Default Value: LOCALDescription: Alters the session time zone for database connections. Set this property so that you can use TNS entry names in database connection strings. You must set this property when using an Oracle wallet as an external password store. See oracle. hadoop. Use this property with oracle. This property overrides all other connection properties. If an Oracle wallet is configured as an external password store, then the property value must start with the jdbc: oracle: thin: @ driver prefix, and the database connection string must exactly match the credential in the wallet. See oracle. hadoop. When using online database mode, you must set either this property or oracle. If the input file requires different patterns for different fields, then use a loader map file. Use the oracle. hadoop. Key property to identify the columns of the target table to sort by. Otherwise, Oracle Loader for Hadoop sorts the records by the primary key. Tab. Directory. Name. Type: String. Default Value: OLH. Oracle Loader for Hadoop does not copy data files into this directory; the file output formats generate a SQL file containing external table DDL, where the directory name appears. This property applies only to Delimited. Text. Output. Format and Data. Pump. Output. Format. Names. Type: String. Default Value: F0,F1,F2.. Description: A comma- delimited list of names for the input fields. For the built- in input formats, specify names for all fields in the data, not just the fields of interest. If an input line has more fields than this property has field names, then the extra fields are discarded. If a line has fewer fields than this property has field names, then the extra fields are set to null. The value can be either a single character or \u. HHHH, where HHHH is the character's UTF- 1. Name. Type: String. Default Value: Not defined. Description: The name of the Hive database where the input table is stored. Name. Type: String. Default Value: Not defined. Description: The name of the Hive table where the input data is stored. Field. Encloser. Type: String. Default Value: Not defined. Description: A character that indicates the beginning of a field. The value can be either a single character or \u. HHHH, where HHHH is the character's UTF- 1. To restore the default setting (no encloser), enter a zero- length value. A field encloser cannot equal the terminator or white- space character defined for the input format. When this property is set, the parser attempts to read each field as an enclosed token (value) before reading it as an unenclosed token. If the field enclosers are not set, then the parser reads each field as an unenclosed token. If you set this property but not oracle. Field. Encloser, then the same value is used for both properties. Case. Insensitive. Type: Boolean. Default Value: false. Description: Controls whether pattern matching is case- sensitive. Set to true to ignore case, so that . For example, a correct regex pattern for input line . The special group zero is ignored because it stands for the entire input line. This property is the same as the input. Regex. Ser. De. oracle. Field. Encloser. Type: String. Default Value: The value of oracle. Field. Encloser. Description: Identifies a character that marks the end of a field. The value can be either a single character or \u. HHHH, where HHHH is the character's UTF- 1. For no trailing encloser, enter a zero- length value. A field encloser cannot be the terminator or a white- space character defined for the input format. If the trailing field encloser character is embedded in an input field, then the character must be doubled up to be parsed as literal text. For example, an input field must have '' (two single quotes) to load ' (one single quote). If you set this property, then you must also set oracle. Field. Encloser. oracle. Type: String. Default Value. You can add your application JAR files to the CLASSPATH by using this property either instead of, or with, the - libjars option to the hadoop command. A leading comma or consecutive commas are invalid. By. Partition. Type: Boolean. Default Value: true. Description: Specifies a partition- aware load. Oracle Loader for Hadoop organizes the output by partition for all output formats on the Hadoop cluster; this task does not impact the resources of the database system. Delimited. Text. Output. Format and Data. Pump. Output. Format generate multiple files, and each file contains the records from one partition. For Delimited. Text. Output. Format, this property also controls whether the PARTITION keyword appears in the generated control files for SQL*Loader. OCIOutput. Format requires partitioned tables. If you set this property to false, then OCIOutput. Format turns it back on. For the other output formats, you can set load. By. Partition to false, so that Oracle Loader for Hadoop handles a partitioned table as if it were unpartitioned. Map. File. Type: String. Default Value: Not defined. Description: Path to the loader map file. Use the file: // syntax to specify a local file, for example. Bad. Records. Type: Boolean. Default Value: false. Description: Controls whether Oracle Loader for Hadoop logs bad records to a file. This property applies only to records rejected by input formats and mappers. It does not apply to errors encountered by the output formats or by the sampling feature. Prefix. Type: String. Default Value: log. Description: Identifies the prefix used in Apache log. Oracle Loader for Hadoop enables you to specify log. D options. For example. D log. 4j. logger. Ora. Loader=DEBUG. D log. 4j. logger. INFO. All configuration properties starting with this prefix are loaded into log. They override the settings for the same properties that log. The overrides apply to the Oracle Loader for Hadoop job driver, and its map and reduce tasks. The configuration properties are copied to log. RAW values; any variable expansion is done in the context of log. Any configuration variables to be used in the expansion must also start with this prefix. This path identifies the location of the required libraries. Path. Type: String. Default Value: $. Values are rounded up to the next multiple of 8 KB. Enclosers. Type: Boolean. Default Value: false. Description: Controls whether the embedded trailing encloser character is handled as literal text (that is, escaped). Set this property to true when a field may contain the trailing enclosure character as part of the data value. See oracle. hadoop. Field. Encloser. oracle. Terminator. Type: String. Default Value: , (comma)Description: A character that indicates the end of an output field for Delimited. Text. Input. Format. The value can be either a single character or \u. HHHH, where HHHH is the character's UTF- 1. Size. Type: Integer. Default Value: 1. Description: The granule size in bytes for generated Data Pump files. A granule determines the work load for a parallel process (PQ slave) when loading a file through the ORACLE. The value must be either a single character or \u. HHHH, where HHHH is the character's UTF- 1. A zero- length value means that no enclosers are generated in the output (default value). Use this property when a field may contain the value of oracle. Terminator. If a field may also contain the value of oracle. Field. Encloser, then set oracle. Enclosers to true. If you set this property, then you must also set oracle. Field. Encloser. oracle. Field. Encloser. Type: String. Default Value: Value of oracle. Field. Encloser. Description: A character generated in the output to identify the end of a field. The value must be either a single character or \u. HHHH, where HHHH is the character's UTF- 1. A zero- length value means that there are no enclosers (default value). Use this property when a field may contain the value of oracle. Terminator. If a field may also contain the value of oracle. Field. Encloser, then set oracle. Enclosers to true. If you set this property, then you must also set oracle. Field. Encloser. oracle. Limit. Type: Integer. Default Value: 1. Description: The maximum number of rejected or skipped records allowed before the job stops running. A negative value turns off the reject limit and allows the job to run to completion. If mapred. map. tasks. Input format errors do not count toward the reject limit because they are fatal and cause the map task to stop. Errors encountered by the sampling feature or the online output formats do not count toward the reject limit either. Sampling. Type: Boolean. Default Value: true.
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