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In this article

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Field Name

Field Type

Description

Label*

Default ValueSQL Server - Merge
Example: Load Employee Tables

String

Specify 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

Default Value: N/A
Example: schema_demo

String/Expression

Specify the database schema name. In case it is not defined, then the suggestion for the Table Name will retrieve all tables names of all 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.

Table name*

Default Value: N/A
Example: employees_table

String/Expression

Specify the table to execute the merge on.

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

Number of Retries

Default Value0
Example: 3

Integer/Expression

Specify the maximum number of attempts to be made to receive a response. The request is terminated if the attempts do not result in a response.

  • When you enable retry and a connection failure occurs that cannot be recovered by retry, the Snap writes a connection failure error in the error view. In some cases, the error view records might contain duplicate data that was written to the database. Ensure to verify all the records in the error file before you restart the merge request. You can locate the duplicate records in the error view by checking the $reason property for the sub-string: Connection is not available, request timed out.

  • Ensure that the local drive has sufficient free disk space to store the temporary local file.

Retry Interval (Seconds)

Default Value: 1
Example: 10

Integer/Expression

Specify the time interval between two successive retry requests. A retry happens only when the previous attempt resulted in an exception. 

When you enable retry and a connection failure occurs that cannot be recovered by retry, the Snap writes a connection failure error in the error view. In some cases, the error view records might contain duplicate data that was written to the database. Ensure to verify all the records in the error file before you restart the merge request. You can locate the duplicate records in the error view by checking the $reason property for the sub-string: Connection is not available, request timed out.

Merge condition*

Default Value: N/A
Example: SALARY =$SALARY

String/Expression

Specify the ON condition of the merge statement.  A boolean-type expression is expected. See Merge Syntax for an explanation of merge syntax.


Identity column

Default Value: N/A
Example: EmployeeID

String/Expression

Specify the table's identity column. If this is not set and the column is set to be generated always, then the merge will fail.

Enable identity insert

Default Value: Deselected

Checkbox

Select the check box to insert values from the input document into the target table identity column. Ensure that the target table contains an identity column. If you do not select the check box, then the Snap strips any value that is meant for the identity column from the input document.

Multiexcerpt include macro
nameSnap Execution
pageSOAP Execute

Default Value: Validate & Execute
Example: Execute only

Dropdown list

Multiexcerpt include macro
nameExecution_Detail_Write
pageSOAP Execute

Examples

The following example illustrates the usage of SQL Merge Snap. In this example, we will supply two documents from upstream having customer information. We will try to merge this data into table called 'customer1'. One of the documents has the data of existing customer with an updated 'phoneno' field and other document is of new customer.

Following is the sample pipeline:

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Input data is passed using the JSON Generator Snap. Following is the sample data passed: 

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The merge condition is applied on field 'customername' of customer1 table. Once the merge Snap execution completes, the record with customername 'John' updates its phoneno and a new record is created for customer 'Shaun'.

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The sample output looks as shown below:

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Snap Pack History

Expand

Insert excerpt
SQL Server Snap Pack
SQL Server Snap Pack
nameSQL_Server_SPH
nopaneltrue

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