Schema Columns

This page details the various types of Columns available within a Source Data Sync

1. Overview

Schema columns refer to your mapping on your data source. For example, if your source is a CSV with the columns 'Name', 'Age', and 'Company', you would set up three schema columns in the Connections UI or data sync XML to match. These schema columns are then mapped to your destination columns for your data sync target, so that the data knows where to go.

Note that you do not have to, and sometimes won't be able to, set up an exact 1:1 relationship between source columns/data and schema columns.

The only difference between setting up your schema columns in the Connections UI vs in a data sync XML is the addition of the Alias column, which is only in the Experience. This attribute allows the user to give an alternative name to the column mapping (usually used for easier readability). The various types of columns are detailed below.

Note that some source types have unique parameters not otherwise specified in other sources. You can find information on those, where applicable, in the source's main page.

You can review the various attribute descriptions here.

2. Standard Column

Fill in the following attributes for a Standard Column (Image 1):

• Name: The name of your column

• Formula: The formula associated with your calculated column

• Data Type: The return data type of your column, this can be either:

  • Text

  • Date

  • Number

  • Bool

  • Geometry

  • Geography

If a Destination column is being used as a sync key, its source column has to be set to type=Text regardless of its actual type

• Description: Describe your column

• Advanced Settings:

  • You can select if you want this column to be mandatory

  • You can choose whether your data must be validated

• If both Mandatory and Validated are checked on a column, then rows where the column is empty are rejected

• If just Mandatory is checked on a column, then all rows are synced with the execution log status of failed, and the source error of "Mandatory Rule Violation"

• If just Validated is checked on a column, then all rows are synced.

• If your data type was chosen as "text", you can choose whether to trim the whitespace or not

You can choose to add in a Transformation > String Replacement by inputting the following:

• Pattern for your string replacement

• Replacement

Note that you can have more than one String Replacement

Image 1: Standard Column

3. Standard Calculated Column

Fill in the following attributes for a Standard Calculated Column (Image 2):

• Name: The name of your column

• Formula: The formula associated with your calculated column

• Data Type: The return data type of your column, this can be either:

  • Text

  • Date

  • Number

  • Bool

  • Geometry

  • Geography

If a Destination column is being used as a sync key, its source column has to be set to type=Text regardless of its actual type.

• Description: Describe your calculated column

• Advanced Settings:

  • You can select if you want this column to be mandatory.

  • You can choose whether your data must be validated.

• If both Mandatory and Validated are checked on a column, then rows where the column is empty are rejected

• If just Mandatory is checked on a column, then all rows are synced with the execution log status of failed, and the source error of "Mandatory Rule Violation"

• If just Validated is checked on a column, then all rows are synced.

Image 2: Standard Calculated Columns

4. Conditional Calculated Column

Fill in the following attributes for a Conditional Calculated Column (Image 3):

Image 3: Conditional Calculated Column

• Name: The name of your column

• Data Type: The return data type of your column, this can be either:

  • Text

  • Date

  • Number

  • Bool

  • Geometry

  • Geography

If a Destination column is being used as a sync key, its source column has to be set to type=Text regardless of its actual type.

• Description: Describe your calculated column

• Advanced Settings:

  • You can select if you want this column to be mandatory.

  • You can choose whether your data must be validated.

• If both Mandatory and Validated are checked on a column, then rows where the column is empty are rejected

• If just Mandatory is checked on a column, then all rows are synced with the execution log status of failed, and the source error of "Mandatory Rule Violation"

• If just Validated is checked on a column, then all rows are synced.

• Condition:

  • Name:

  • IF: Click Edit to create the "if" for your Conditional Statement (Image 4)

Image 4: Creating your Conditional statement

• Then: Click Edit to create the "then" for your Conditional Statement (Image 5)

Image 5: Creating your Conditional Statement

• Default: Click Edit to create your default expression (Image 6)

Image 6: Creating your Default Expression

5. JavaScript Calculated Column

Fill in the following attributes for a JavaScript Calculated Column (Image 7):

• Name: The name of your column

• Data Type: The return data type of your column, this can be either:

  • Text

  • Date

  • Number

  • Bool

  • Geometry

  • Geography

If a Destination column is being used as a sync key, its source column has to be set to type=Text regardless of it’s actual type

• Description: Describe your calculated column

• Advanced Settings:

  • You can select if you want this column to be mandatory.

  • You can choose whether your data must be validated.

• If both Mandatory and Validated are checked on a column, then rows where the column is empty are rejected

• If just Mandatory is checked on a column, then all rows are synced with the execution log status of failed, and the source error of "Mandatory Rule Violation"

• If just Validated is checked on a column, then all rows are synced.

• Script: Enter in your JavaScript

Image 7: JavaScript Calculated Column

6. Columns in XML

This XML element defines each column in the data set as well as their data type:

<Column
    name="string"
    dataType="Text"| "Date"| "Number"| "Bool"| "Geometry"| "Geography"
    ordinal="int"                     -- Depends on the data source
    maxLength="int"                   --OPTIONAL
    isMandatory=["true", "false"]     --OPTIONAL
    validateData=["true", "false"]    --OPTIONAL
    trimWhitespace=["true", "false"]  --OPTIONAL
    description="string"              --OPTIONAL
    inputFormat="string"              --OPTIONAL
    >
    ...
</Column>

6.1 Attributes Descriptions

name

The user defined name for each column. This is used in <ColumnMapping> when you want to indicate the name of the sourceColumn.

dataType

The data type of each column could be Text, Date, Number, Bool, Geometry, or Geography.

If a Destination column is being used as a sync key, its source column has to be set to type=Text regardless of it’s actual type

To sync into a Cinchy table with a Geometry or Geography column, those respective data types must be used in the data sync, and the input should be in well-known text (WKT) format.

The dataType affects how the source and target data is parsed, and also determines how the fields are compared for equality. If your sync keeps updating a field that has not changed, double check your data types.

For example, given line 1 of a csv file:

Name, Location, Age

The ordinal for Age would be 3.

maxLength

The max length of data in the column.

isMandatory

Boolean value determining if the field is a mandatory column to create a row entry.

A defined synckey column of any data type can be checked for NULL values using isMandatory="true”. When validation fails, an error message is displayed in the command line. For other columns when validation fails, the Execution Errors Table is updated with Error Type, Mandatory Rule violation for that column and row that failed.

validateData

Boolean value determining whether or not to validate the data before inserting. Valid data means to fit all the constraints of the column (dataType, maxLength, isMandatory, inputFormat). If the data is not valid and validateData is true, then the entry will not be synced into the table. The Execution Errors Table is also updated with the appropriate Error Type (Invalid Format Exception, Max Length Violation, Mandatory Rule Violation, Input Format Exception)

trimWhitespace

Boolean value determining whether or not to trim white space.

description

Description of the column.

inputFormat

Date fields support the inputFormat which adheres to the c# .net DateTime.ParseExact format. See here for reference.

inputFormat attribute is useful when source file need some format changes in the input data

Elements:

<Transformations>