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Snap type:

Write

Description:

The Teradata FastLoad Snap uses the "FastLoad" command installed in the Operating System to load data into empty tables. Teradata FastLoad program should be installed on the Snaplex where the Snap is being executed. The Snap generates a script based on the field mapping which is executed using the FastLoad program that is installed on the OS. The Snap also captures the output generated from the FastLoad program (in the OS) and writes to the OUT field in the output views.

You will need the Teradata Tools & Utilities (TTU) to have access to the Teradata FastLoad component. See the Teradata Tool and Utilities documentation for your platform and Teradata version at http://www.info.teradata.com/templates/eSrchResults.cfm?prodline=&txtpid=&txtrelno=&txtttlkywrd=CINSTALL&rdsort=Title&srtord=Asc&nm=Installation for more information.

Queries produced by the Snap have the format:

SELECT TOP [limit] * FROM [table] WHERE [where clause] ORDER BY [ordering] .. and uses QUALIFY() for LIMIT

Expected downstream Snaps: A Snap monitoring the exit code to check result status.
Expected input: None or documents with values to evaluate expression properties in the Snap. Each input document triggers one execution of the script.
Expected output: A single document containing the console output and return status from the external Teradata application for each input document

Prerequisites:

TPT Snaps (TPT Insert, TPT Update, TPT Delete, TPT Upsert and TPT Load) uses the 'tbuild' utility for the respective operations.

In order to use these Snaps in the pipelines, the respective TPT utilities should be installed/available on the Snapplexes.

All the required TPT utilities must be installed on the node where JCC is running or the Snap simply executes but may not perform the operation. Any utility/library file missing on the node may cause the Snap to perform a failed operation.

Basic steps for installing the TPT utilities:

Procedure to install the Teradata tools and utilities:

Download the Teradata Tools and Utilities base such as TeradataToolsAndUtilitiesBase__Linux_i386-x8664.15.10.06.00.tar.gz for Linux environment.
If the OS is 64 bit, install 32 bit support packages on the environment and also any further dependencies
Install the Teradata Tools and Utilities (that includes tbuild, fastload, mload etc)
The default installation also configures the PATH in the OS

Flow: If the tbuild or fastload is already available on the OS path then the corresponding TPT Snap can invoke the required utility, however, if these binaries are not available on the OS path, then we need to provide the absolute path of the respective binary in the Snap.

Support and limitations:

Works in Ultra Tasks.

When the upstream Snap passes empty strings as two consecutive delimiter characters, this Snap inserts null values into the corresponding fields of the table in the Teradata database. Also, if the last character in a record is a delimiter character, and if there is at least one more field to be processed, this Snap inserts null value in the field corresponding to the next one to be processed.

See Null Fields section in the Teradata documentation for more information.

Account:

This Snap uses account references created on the Accounts page of SnapLogic Manager to handle access to this endpoint. See Configuring Teradata Database Accounts for information on setting up this type of account.

Views:

Input

This Snap has at most two document input views.

Output

This Snap has one output view. The output view produces three output fields, the Script, Status and the Out.

SCRIPT: Specifies the script generated by the Snap and will be executed in the OS (the password will be masked)
STATUS: Specifies the status after executing the Snap (produced from the FastLoad execution). The status contains the number of records read, duplicated, inserted, dropped(because of error count and unique violation), and the error tables 1&2.
OUT: Specifies the output text/data captured from the execution of the FastLoad program.

Error

This Snap has at most one document error view and produces zero or more documents in the view.

Settings

Label

Required. The name for the Snap. You can modify this to be more specific, especially if you have more than one of the same Snap in your pipeline.

Schema name

The database schema name. In case it is not defined, the suggestion for the table name will retrieve all the table names of all the schemas. The property is suggestible and will retrieve available database schemas during suggest values.

The values can be passed using the pipeline parameters but not the upstream parameter.

Example: SYS

Default value: [None]

Table name

Required. Name of the table to execute a select query on.

The values can be passed using the pipeline parameters but not the upstream parameter.

Example: people

Default value: [None]

Create table if not present

Whether the table should be automatically created if not already present.

Default value: [None]

FastLoad absolute path

The absolute path for FastLoad command. If this field is left blank then the Snap tries to load the Fastload command from the Operating System.

Default value: [None]

Checkpoint size

Required. Value that specifies the number of rows transmitted to the Teradata Database between checkpoints using the CHECKPOINT. If the value is set to 0, then the checkpoint is not enabled during Fastload execution.

Default value: 0

Write error table records to error view

Writes all the records from error tables to an error view after a Fastload execution is completed.

Default value: Not Selected

Snap execution

Select one of the three modes in which the Snap executes. Available options are:

Validate & Execute: Performs limited execution of the Snap, and generates a data preview during Pipeline validation. Subsequently, performs full execution of the Snap (unlimited records) during Pipeline runtime.
Execute only: Performs full execution of the Snap during Pipeline execution without generating preview data.
Disabled: Disables the Snap and all Snaps that are downstream from it.

Example

In this example, we shall load records from an Oracle database using the Oracle Select Snap, to a Teradata table using the Teradata FastLoad Snap.

Select the table, Book under the schema, TECTONIC, using the Oracle Select Snap.

The Mapper Snap maps the incoming data from Oracle to the Teradata Table. Note that the source and the target column data types should match for the data to load successfully.

The data is loaded to the table book123 under the schema, Snaplogic.

Successful execution of the pipeline displays the below output preview:Note that the preview displays the insert count as 2 and the duplicate count as 48 out of the 50 records that are read.

Snap Pack History

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Release	Snap Pack Version	Date	Type	Updates
August 2024	main27765	21 Aug 2024	Stable	Upgraded the `org.json.json` library from v20090211 to v20240303, which is fully backward compatible.
May 2024	437patches26471	10 Jun 2024	Latest	The jOOQ library for Teradata Snap Pack is upgraded from v3.9.1 to v3.17.3. This upgrade will be part of the GA release on August 14, 2024 (Stable release). Pipelines using the Teradata Snaps are not impacted after the jOOQ upgrade.
May 2024	main26341	08 May 2024	Stable	Updated and certified against the current SnapLogic Platform release.
February 2024	main25112	14 Feb 2024	Stable	Updated and certified against the current SnapLogic Platform release.
November 2023	main23721	08 Nov 2023	Stable	Updated and certified against the current SnapLogic Platform release.
August 2023	main22460	16 Aug 2023	Stable	The Teradata Execute Snap now includes a new Query type field. When Auto is selected, the Snap tries to determine the query type automatically.
May 2023	main21015	10 May 2023	Stable	Upgraded with the latest SnapLogic Platform release.
February 2023	main19844	09 Feb 2023	Stable	Upgraded with the latest SnapLogic Platform release.
November 2022	main18944	10 Nov 2022	Stable	The TPT Insert Snap now creates the target table only from the table metadata of the second input view when the following conditions are met: The Create table if not present checkbox is selected. The target table does not exist. The table metadata is provided in the second input view.
August 2022	main17386	11 Aug 2022	Stable	Upgraded with the latest SnapLogic Platform release.
4.29 Patch	429patches16235	21 Jul 2022	Latest	Fixed an issue with Teradata Execute Snap where the Snap did not display valid error message when the delete condition is invalid.
4.29	main15993	14 May 2022	Stable	Enhanced the Teradata FastExport Snap with Character Set dropdown list to support encoding of data when you export data from the Teradata Database.
4.28	main14627	12 Feb 2022	Stable	Upgraded with the latest SnapLogic Platform release.
4.27	main12833	13 Nov 2021	Stable	Enhanced the Teradata Execute Snap to invoke stored procedures.
4.26	main11181	14 Aug 2021	Stable	Upgraded with the latest SnapLogic Platform release.
4.25 Patch	425patches11008	04 Aug 2021	Latest	Improved the error messages for all the Snaps in the Teradata Snap Pack where the Snaps fail with a null pointer exception error when the account reference provided is invalid.
4.25	main9554	08 May 2021	Stable	Upgraded with the latest SnapLogic Platform release.
4.24 Patch	424patches8799	05 Mar 2021	Latest	Enhanced the Teradata Execute Snap by adding a new field, Advanced options, which extends support with microsecond precision for TIMESTAMP data type. Fixed an issue in the TPT Load Snap where the Snap failed to load data into the table while creating an output. Fixed an issue with the TPT Load Snap wherein now a null value is loaded as null and empty string is loaded as empty string. This fix may cause existing pipelines to fail if empty string values are expected to be loaded as null. Following are the new configurations: `VARCHAR QuotedData= Optional` `VARCHAR OpenQuoteMark= \”` `VARCHAR NullColumns= Yes`
4.24	main8556	13 Feb 2021	Stable	Enhanced the Teradata Select Snap to return only the selected output fields or columns in the output schema (second output view) using the Fetch Output Fields In Schema check box. If the Output Fields field is empty all the columns are visible.
4.23	main7430	14 Nov 2020	Stable	Fixes the multi-line value issue and issue in the TPT Load Snap where the Snap writes null for both an empty string and null values in the input data. The fix for this issue was to add the following three lines in the script and wrap all the values in double quotes unless they are null while writing the input data into a temp CSV file. VARCHAR QuotedData = 'Optional', VARCHAR OpenQuoteMark = '\"' VARCHAR NullColumns = 'Yes' This fix may cause existing pipelines to fail if empty string values are expected to be loaded as null.
4.22	main6403	12 Sep 2020	Stable	Upgraded with the latest SnapLogic Platform release.
4.21 Patch	421patches6272	27 Jul 2020	Latest	Fixed the issue where Snowflake SCD2 Snap generates two output documents despite no changes to Cause-historization fields with DATE, TIME and TIMESTAMP Snowflake data types, and with Ignore unchanged rows field selected.
4.21 Patch	421patches6144	20 Jul 2020	Latest	Fixed the following issues with DB Snaps: The connection thread waits indefinitely causing the subsequent connection requests to become unresponsive. Connection leaks occur during Pipeline execution.
4.21 Patch	MULTIPLE8841	19 May 2020	Latest	Fixed the connection issue in Database Snaps by detecting and closing open connections after the Snap execution ends.
4.21	snapsmrc542	09 May 2020	Stable	Upgraded with the latest SnapLogic Platform release.
4.20	snapsmrc535	08 Feb 2020	Stable	Upgraded with the latest SnapLogic Platform release.
4.19 Patch	db/teradata8414	13 Dec 2019	Latest	Fixed an issue with the TPT Update Snap wherein the Snap is unable to perform operations when: An expression is used in the Update condition property. Input data contain the character '?'.
4.19	snaprsmrc528	14 Nov 2019	Stable	Upgraded with the latest SnapLogic Platform release.
4.18	snapsmrc523	10 Aug 2019	Stable	Upgraded with the latest SnapLogic Platform release.
4.17	ALL7402	11 Jun 2019	Latest	Pushed automatic rebuild of the latest version of each Snap Pack to SnapLogic UAT and Elastic servers.
4.17	snapsmrc515	11 Jun 2019	Latest	Fixed an issue with the Teradata Execute Snap wherein the Snap would send the input document to the output view even if the Pass through field is not selected in the Snap configuration. With this fix, the Snap sends the input document to the output view, under the key original, only if you select the Pass through field. Added the Snap Execution field to all Standard-mode Snaps. In some Snaps, this field replaces the existing Execute during preview check box.
4.16	snapsmrc508	16 Feb 2019	Stable	Upgraded with the latest SnapLogic Platform release.
4.15 Patch	db/teradata6338	05 Dec 2018	Latest	Replaced Max idle time and Idle connection test period properties with Max life time and Idle Timeout properties respectively, in the Account configuration. The new properties fix the connection release issues that were occurring due to default/restricted DB Account settings.
4.15	snapsmrc500	15 Dec 2018	Stable	Upgraded with the latest SnapLogic Platform release.
4.14	snapsmrc490	11 Aug 2018	Stable	Upgraded with the latest SnapLogic Platform release.
4.13	snapsmrc486	12 May 2018	Stable	Upgraded with the latest SnapLogic Platform release.
4.12	snapsmrc480	17 Feb 2018	Stable	Upgraded with the latest SnapLogic Platform release.
4.11	snapsmrc465	11 Nov 2017	Stable	Upgraded with the latest SnapLogic Platform release.
4.10	snapsmrc414	12 Aug 2017	Stable	Added Auto commit property to the Select and Execute Snaps at the Snap level to support overriding of the Auto commit property at the Account level.
4.9.0 Patch	teradata3077	01 Jun 2017	Latest	Fixed an issue regarding connection not closed after login failure; Expose autocommit for "Select into" statement in PostgreSQL Execute Snap and Redshift Execute Snap
4.9	snapsmrc405	13 May 2017	Stable	Enhanced the Output view of the Snap with Order Summary field that displays the output values (added to the out, err, status, classpath and env fields of the single output view that display the subprocess only). Teradata Export to HDFS Snap supported with Dynamic account.
4.8	snapsmrc398	11 Feb 2017	Stable	Introduced the TPT Delete, Insert, Load, Upsert and Update Snaps in this release. Introduced Teradata Export to HDFS Snap in this release. Info tab added to accounts. Database accounts now invalidate connection pools if account properties are modified and login attempts fail.
4.7	snapsmrc382	23 Nov 2016	Stable	Introduced the Teradata FastLoad and Execute Snaps in this release. Migration impact: In Teradata FastExport, the values of the Data Format field have been standardized to be in all caps. Existing pipelines that use the values of Binary, Text, or Unformatted will fail unless the new value of BINARY, TEXT, or UNFORMAT are used.
4.6	snapsmrc362	13 Aug 2016	Stable	Snap Pack introduced in 4.6.0. This includes only Teradata extract functionality to move data out of Teradata database using the FastExport Utility. It does not include Snaps for load, select, insert, delete, execute or others at this time. It also does not utilize the Teradata Parallel Transporter to extract data.