![]() You can't specify more than one custom datetime formats per file. Only one custom datetime format is allowed per file. If the source file uses default datetime formats, this option isn't necessary. Specifies a custom format for all date and time data that might appear in a delimited text file. If the value is set to >2, the first row exported is the Column names of the external table. When this option is used for export, rows are added to the data to make sure the file can be read with no data loss. Rows are skipped based on the existence of row terminators (/r/n, /r, /n). If the value is set to two, the first row in every file (header row) is skipped when the data is loaded. Specifies the row number that is read first in all files during a PolyBase load. STRING_DELIMITER = '0x7E0x7E' (Two tildes, for example, ~~) STRING_DELIMITER = '0x22' (Double quote hex) For guaranteed support, we recommend using one or more ASCII characters. The string delimiter is one or more characters in length and is enclosed with single quotes. Specifies the field terminator for data of type string in the text-delimited file. The field terminator specifies one or more characters that mark the end of each field (column) in the text-delimited file. FIELD_TERMINATOR = field_terminatorĪpplies only to delimited text files. The format options described in this section are optional and only apply to delimited text files. The JSON file format type supports the following compression methods: The PARQUET file format type supports the following compression methods: DATA COMPRESSION = .compress.Snapp圜odec.The ORC file format type supports these compression methods: DATA COMPRESSION = .compress.DefaultCodec.The RCFILE format type supports this compression method: DATA COMPRESSION = .compress.GzipCodec.The DELIMITEDTEXT format type supports this compression method: To work properly, Gzip compressed files must have the ".gz" file extension. When DATA_COMPRESSION isn't specified, the default is uncompressed data. Specifies the data compression method for the external data. DATA_COMPRESSION = data_compression_method Serverless SQL pools do not support the DATE_FORMAT option. Only serverless SQL pools in Azure Synapse Analytics support PARSER_VERSION. Applies to serverless SQL pools in Azure Synapse Analytics and SQL Server 2022 (16.x). Specifies a text format with column delimiters, also called field terminators. FORMAT_TYPE = RCFILE, SERDE_METHOD = '.'.FORMAT_TYPE = RCFILE, SERDE_METHOD = '.圜olumnarSerDe'.Note, the SerDe method is case-sensitive.Įxamples of specifying RCFile with the two SerDe methods that PolyBase supports. This requirement is the same if you use Hive/HiveQL in Hadoop to query RC files. This option requires you to specify a Hive Serializer and Deserializer (SerDe) method. Specifies a Record Columnar file format (RcFile). In Hadoop, the ORC file format offers better compression and performance than the RCFILE file format.įORMAT_TYPE = RCFILE, SERDE_METHOD = SERDE_method This option requires Hive version 0.11 or higher on the external Hadoop cluster. Specifies an Optimized Row Columnar (ORC) format. Specifies the format of the external data. Specifies a name for the external file format. Create an external file format for delta table files (serverless SQL pools in Synapse analytics and SQL Server 2022). Create an external file format for JSON files. Create an external file format for PARQUET files.ĬREATE EXTERNAL FILE FORMAT file_format_name This syntax is not supported by serverless SQL pool in Azure Synapse Analytics. For information on using OPENROWSET to import JSON data in other platforms, see Import JSON documents into SQL Server or Query JSON files using serverless SQL pool in Azure Synapse Analytics.Īpplies only to serverless SQL pools in Azure Synapse Analytics and SQL Server 2022 (16.x). The following file formats are supported:ĭoesn't apply to Azure Synapse Analytics, Azure SQL Managed Instance, or SQL Server 2022 (16.x). To create an External Table, see CREATE EXTERNAL TABLE (Transact-SQL). By creating an External File Format, you specify the actual layout of the data referenced by an external table. Creating an external file format is a prerequisite for creating an External Table. SQL Server 2016 (13.x) and later Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW)Ĭreates an external file format object defining external data stored in Hadoop, Azure Blob Storage, Azure Data Lake Store or for the input and output streams associated with external streams.
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