Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

You can use this Snap to execute a SQL delete with the given properties. This Snap supports SQL Server 2008 or newerand higher versions.

...

Snap Type

The SQL Server - Delete Snap is a Write-type Snap that executes an SQL Server delete.

...

Field Name

Field Type

Description

Label*

Default ValueSnowflake - Delete
Example: Load Employees

String

Specify a unique name for the Snap.

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 suggestable 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 name to execute the delete on.

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

Delete condition (deletes all records from table if left blank)

Default Value: N/A
Example: email = 'you@example.com'

String/Expression

Specify the SQL WHERE clause of the delete statement. The delete condition may also be passed via an upstream Snap or through the pipeline parameters.

Specify a valid WHERE clause for the delete condition. If you leave this field blank, the Snap deletes all the records from the table.

Examples

Without using expressions

  • EmpId = 12 

  • email = 'you@example.com'

Using expressions

  • "EMPNO=$EMPNO and ENAME=$EMPNAME"

  • email = $email 

  • emp=$emp

  • "emp='" + $emp + "'"

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

Note

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. 

Number of retries

Default value: 0
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.

Multiexcerpt include macro
nameretries
pageFile Reader

Retry interval (seconds)

Default value: 1
Example: 10

Integer/Expression

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

Snap Execution

Default Value: Execute only
Example: Validate & Execute

Dropdown list

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 pipeline runtime.

  • Execute only: Performs full execution of the Snap during Pipeline pipeline execution without generating preview data.

  • Disabled: Disables the Snap and all Snaps that are downstream from it.

Example

This example deletes the pipeline demonstrates how to delete records from table 'customer1'. After the execution of the pipeline, all the user records with 'customername'  value 'John' will be deleted from tablecustomer_one'.

 

Download this pipeline.

The Delete condition specifies the condition to identify the records to be deleted. On Validation, the snap displays the sample output.

...

...

On validation of the pipeline, all the user records with the customer name  'John' are deleted from the table.

...

Downloads

Attachments
patterns*.slp, *.zip
sortByname

...