Azure SQL - Update

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Snap type:Write
Description:

This Snap executes a SQL update using the input document. Keys from the document will be used as the columns to update and their values will be the updated value in the column.

While trying to access a column name that contains specific characters as supported by Azure SQL such as $, #, @ etc., such field names should be enclosed in the square brackets.

ETL Transformations & Data Flow

This Snap enables the following ETL operations/flows:

  1. Load data in an Azure SQL table

Input & Output

  • InputThis Snap must have an upstream Snap that can passes documents to its output view. The documents are the data that is used in the SQL update.

  • Output: The Snap can have a downstream Snap. This snap writes a document to the output view summarizing each update execution.
Prerequisites:

This Snap supports SQL Server 2008 or newer.

Limitations and Known Issues:

Works in Ultra Tasks.
Configurations:

Account & Access

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

Views

Input

This Snap has exactly one document input view. The input document is used to build the update query. Below is an example for how an input document is translated to a query.

Input document:

{
    "Color": "blue",
    "ListPrice": 7.22
}


Query:

update "Database"."Table"
set [ListPrice] = 7.22, 
    [Color] = 'blue'
Output

This Snap has at most one output view and produces documents in the view. The output fields of a single view are:

  • message - the summary of the query outcome
  • status - for successful queries the number of rows updated and for failed queries the error code
  • original - the input document

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

The section describes typical issues you may encounter while using this Snap, and instructions on how to workaround them:

  • Issue: A Snap with an update condition such as "Name = username" fails with error "Invalid column name 'username'.".

    Solution: The issue is that the string value specified in the update condition, username, must be quoted with single quotations. The proper update condition in this example is "Name = 'username'".

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


This is the name of the Azure SQL database that includes the table that will be updated. If this is not specified then the Table Name should be fully qualified with the database name. Optionally, the value can use double quotation marks as an identifier.

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

Example: SalesData

Example: "SalesData"

Table Name


Required. This is the table that will be updated. It can be specified as the table name only if the Schema Name is defined. Otherwise, it can be specified as a fully qualified name "Database"."Table". Optionally, the value can use double quotation marks as an identifier.

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

Example: ProductInfo

Example: "SalesData"."ProductInfo"

Update Condition


Specify the SQL WHERE clause of the update statement. You can define specific values or columns to update (Set condition) in the upstream Snap, such as Mapper Snap, and then use the WHERE clause to apply these conditions on the columns sourced from the upstream Snap. For instance, here is a sample of an Update SQL query:

UPDATE table_name
SET column1 = value1, column2 = value2,
WHERE condition;

If the Update Condition field is left blank, the condition is applied on all the records of the target table. 

In certain scenarios where you want to use specific data from the upstream Snaps, and do not want to change that data in the Update Snap, then you need to place the data in the original structure of the input document. Hence, we recommend that you use the format for Update condition and input data format as shown below:

{
"valueToUpdate" : "true",
"original": {
"col1" : "KEY"
}
}

Instead of building multiple Snaps with inter dependent DML queries, it is recommended to use the Stored Procedure or the Multi Execute Snap.
In a scenario where the downstream Snap does depends on the data processed on an Upstream Database Bulk Load Snap, use the Script Snap to add delay for the data to be available.

Refer to the example to understand how to use the Update Condition.

Examples:

Without using expressions

Using expressions

  • "EMPNO=$EMPNO and ENAME=$EMPNAME"

  • email = $email 

  • emp=$emp

  • "emp='" + $emp + "'"

  • "EMPNO=" + $EMPNO + " and ENAME='" + $EMPNAME+ "'"

Caution

Using expressions that join strings together to create SQL queries or conditions has a potential SQL injection risk and is hence unsafe. Ensure that you understand all implications and risks involved before using concatenation of strings with '=' Expression enabled. 

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.

Typical Snap Configurations

The key Snap configurations:

  • Without Expressions

 In the below pipleine, the Snap updates the table, "dbo"."AV_EMP"  with the given condition, EMPID = 500.   

  


  • With Expressions
    • Upstream
    • Pipeline Parameters

In the below pipeline, the Update Snap retrieves the values from the upstream as well as from the Pipeline parameters.

  

The Mapper Snap maps the values to be passed using the output schema:


The Azure SQL update Snap uses the value for the table name as passed in the pipeline parameters (_TableTo BeUsed), and the value for the update condition as passed via the upstream.

 

Advanced Use Case

The following describes a pipeline, with a broader business logic involving multiple ETL transformations, that shows how typically in an enterprise environment, Update functionality can be used. Pipeline download link below.  

This pipeline reads and moves the records from the SQL Server table to update the Azure SQL database. The records (EmployeeID, Salary, title)  from a table on the SQL Server database are moved  to the table on the Azure SQL. The Bulk Load Snap loads the table, while the Update Snap updates the values using an upstream.

 

  1. Extract: The SQL Server Snap retrives the records from a table on the SQL Server database.

  2. Transform: The Mapper Snap maps the values to be updated on the Azure SQL table.

  3. Load: The Azure SQL Bulk Load Snap loads the data into the Azure SQL database.

  4. Load: The Azure SQL Update Snap updates the table on the Azure SQL.

  5. Read: The Azure SQL Execute Sanp reads the values as updated on the table.

Downloads

Important steps to successfully reuse Pipelines

  1. Download and import the pipeline into the SnapLogic application.
  2. Configure Snap accounts as applicable.
  3. Provide pipeline parameters as applicable.

Snap Pack History

 Click to view/expand
Release Snap Pack VersionDateTypeUpdates
November 2024main29029 StableUpdated and certified against the current SnapLogic Platform release.
August 2024main27765 StableUpgraded the org.json.json library from v20090211 to v20240303, which is fully backward compatible.
May 2024437patches27180 Latest

Fixed the following issues with the Azure SQL - Bulk Load Snap:

  • The Snap displayed an error when the DateTime was of the LocalDateTime type.

  • The Snap lost milliseconds when the DateTime was in the String data type because the given DateTime format was parsed into a Date object and the timestamp object was created from that date.

May 2024main26341 Stable

The following Azure SQL Active Directory Accounts have been renamed because Microsoft has rebranded Azure Active Directory to Microsoft Entra ID.

February 2024436patches25468 Latest

The Azure SQL Bulk Extract Snap now supports Azure SQL Active Directory and Azure SQL Active Directory Dynamic Accounts.

February 2024main25112 StableUpdated and certified against the current SnapLogic Platform release.
November 2023main23721 StableUpdated and certified against the current SnapLogic Platform release.
August 2023main22460

 

Stable

The Azure SQL Execute Snap now includes a new Query type field. When Auto is selected, the Snap determines the query type automatically.

May 2023main21015 StableUpgraded with the latest SnapLogic Platform release.
May 2023432patches20967 LatestFixed an issue with the connection pool in the Azure SQL accounts, which was affecting the Snap Pack's performance. You should now experience improved performance when using these accounts.
March 2023432patches20318 Latest

The Azure SQL - Bulk Extract Snap no longer fails with a java.lang.NumberFormatException error.

March 2023432patches20219 LatestFixed an issue with the Azure SQL - Bulk Load Snap involving special characters in JDBC URL properties, such as passwords. Special characters are properly escaped now
March 2023432patches20049 Latest

Intermittent connectivity issues no longer occur when using some Snaps in the Azure SQL Snap Pack. These issues caused the following message to display: The connection is broken and recovery is not possible. The connection is marked by the client driver as unrecoverable. No attempt was made to restore the connection

February 2023main19844 StableUpgraded with the latest SnapLogic Platform release.
January 2023

431patches19493

 Latest

The Azure SQL Active Directory and the Azure SQL Active Directory Dynamic accounts now include an Authentication Mode dropdown list, which allows you to choose the Active Directory authentication mode you would like to use. This enhancement supports Active Directory Service Principal authentication for the Snap Pack.

December 2022

431patches19410


 


 

Stable


Latest

Fixed the Azure SQL - Execute Snap using the Azure SQL Active Directory Account that failed with SQL operation failed errors in environments using federated authentication.

December 2022431patches19263 Latest

The Azure Synapse SQL Insert Snap no longer includes the Preserve case-sensitivity checkbox because the database is case-insensitive. The database stores the data regardless of whether the columns in the target table and the input data are in mixed, lower, or upper case.

November 2022main18944 Stable

The Azure SQL Snap Pack uses the 11.2x driver by default. If you specify any specific driver, ensure that you provide a version higher than 9.1 that is compatible with Microsoft Authentication Library for Java, as this Snap Pack uses the MSAL4J. Otherwise, you may run into issues.

August 2022

main17386 Stable

The Azure Active Directory Search Entries Snap includes a Display Properties field where you can specify the properties to display in the output for the user or group. For the Snap to correctly return the attributes in the output, you must specify the attribute name as described in User profile attributes in Azure Active Directory B2C. Learn more about Properties for a user and Properties for a group.

4.29 Patch429patches16545 Latest

Fixed an issue with the Azure SQL-Stored Procedure Snap where the Snap failed with an Invalid value type error when the stored procedure contained an NCHAR data type.

4.29 Patch429patches16460 Latest

Fixed an issue with Azure SQL Bulk Load Snap where the Snaplex exited due to insufficient memory when a large number of rows are loaded into the target table and the input data contained a null value for a non-nullable column.

4.29main15993 Stable

Enhanced the Azure SQL Account and Azure SQL Active Directory Account with the Disable connection pooling checkbox that allows you to manage session state sharing.

4.28 Patch428patches15164 Latest

Fixed an issue with the Azure SQL - Update Snap where the Snap failed with an Incorrect syntax error when a column in a table is of NVARCHAR, NCHAR, or NTEXT data type and this column is part of another NVARCHAR, NCHAR, or NTEXT data type column name and the update condition is specified as an expression.

4.28 Patch428patches15114 LatestFixed an issue with the Azure SQL - Bulk Load Snap where the decimal values lost precision when they were inserted into the database.
4.28main14627 StableUpgraded with the latest SnapLogic Platform release.
4.27main12833 Stable

Enhanced the Azure SQL - Execute Snap to invoke stored procedures.

4.26main11181 StableUpgraded with the latest SnapLogic Platform release.
4.25main9554
 
StableUpgraded with the latest SnapLogic Platform release.
4.24main8556
Stable

Enhances the Azure SQL - Stored Procedure to accept parameters from input documents by column keys. If the values are empty, the parameters are populated based on the column keys for easier mapping in the upstream Mapper Snap.

4.23main7430
 
Stable

Enhances the Azure SQL - Bulk Extract Snap by adding a new check box Enable UTF-8 encoding to support UTF-8 encoded characters. This check box allows the Snap to update the BCP command to read the special characters.

4.22 Patch 422Patches6751 Latest

Enhances the Azure SQL - Bulk Extract Snap by adding a new check box Enable UTF-8 encoding to support UTF-8 encoded characters. Selected by default, this check box allows the Snap to update the BCP command to read these special characters.

4.22main6403
 
StableUpgraded with the latest SnapLogic Platform release.
4.21 Patch 421patches6272 Latest

Fixes 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 Latest

Fixes 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 Patch421patches5864 Latest

Adds support for UTF_8 characters with BCP (bulk copy program) command to the Azure SQL Bulk Extract Snap.

4.21 PatchMULTIPLE8841 Latest

Fixes the connection issue in Database Snaps by detecting and closing open connections after the Snap execution ends. 

4.21snapsmrc542

 

StableUpgraded with the latest SnapLogic Platform release.
4.20snapsmrc535
 
StableUpgraded with the latest SnapLogic Platform release.
4.19 Patch db/azuresql8403 Latest

Fixes an issue with the Azure SQL - 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 '?'.
4.19snaprsmrc528
 
Stable

Enhanced the error handling in PolyBase Bulk Load Snap when writing to a data warehouse. The Snap writes a new blob in the Azure container. This new blob highlights the first invalid row that caused the bulk load operation to fail.

4.18snapsmrc523
 
StableUpgraded with the latest SnapLogic Platform release.
4.17ALL7402
 
Latest

Pushed automatic rebuild of the latest version of each Snap Pack to SnapLogic UAT and Elastic servers.

4.17snapsmrc515
 
Latest
  • Fixes an issue with the Azure SQL 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 Patch db/azuresql7179 Latest

Fixes an issue with the Azure SQL Bulk Extract Snap wherein the Snap fails to process all the metadata information of the input table and schema.

4.16snapsmrc508
 
StableUpgraded with the latest SnapLogic Platform release.
4.15 Patch db/azuresql6327 Latest

Replaced Max idle time and Idle connection test period properties with Max life time and Idle Timeout&n