docs.datacontroller.io/docs/dcc-validations.md

---
layout: article
title: Data Validation
description: Quality in, Quality out! Enforce data quality checks at the point of SAS data entry, both directly via the web interface and also via Excel uploads.
og_image: https://i.imgur.com/P64ijBB.png
---


# Data Controller for SAS® - DQ Validations

## Overview
Quality in, Quality out!  Data Controller lets you enforce quality checks at the point of data entry, both directly via the web interface and also via Excel uploads.

## Default Checks
By default, the following frontend rules are always applied:

* Length checking per target table variable lengths
* Type checking per target table datatypes
* Not Null check per target table constraints
* Primary Key checking per business key defined in MPE_TABLES

It is possible to configure a number of other rules by updating the MPE_VALIDATIONS table.  Simply set the `BASE_LIB`, `BASE_DS` and `BASE_COL` values, and ensure `RULE_ACTIVE=1` for it to be applied.

## Configurable Checks

Check back frequently as we plan to keep growing this list of checks.

|Rule Type|Example Value |Description|
|---|---|---|
|CASE|UPCASE|Will enforce the case of cell values.  Valid values: UPCASE, LOWCASE, PROPCASE|
|NOTNULL|(defaultval)|Will prevent submission if null values are present.  Optional - provide a default value.|
|MINVAL|1|Defines a minimum value for a numeric cell|
|MAXVAL|1000000|Defines a maximum value for a numeric cell|
|HARDSELECT|sashelp.class.name|A distinct list of values (max 1000) are taken from this library.member.column reference, and the value **must** be in this list.  This list may be supplemented by entries in the MPE_SELECTBOX table.|
|SOFTSELECT|dcdemo.mpe_tables.libref|A distinct list of values (max 1000) are taken from this library.member.column reference, and the value **may** be in this list.  This list may be supplemented by entries in the MPE_SELECTBOX table.|
|[HARDSELECT_HOOK](/dynamic-cell-dropdown)|/logical/folder/stpname|A SAS service (STP or Viya Job) or a path to a SAS program on the filesystem.  User provided values **must** be in this list.|
|[SOFTSELECT_HOOK](/dynamic-cell-dropdown)|/physical/path/program.sas|A SAS service (STP or Viya Job) or a path to a SAS program on the filesystem.  User provided values **may** be in this list.|
chore: automated commit 2021-03-21 15:09:06 +00:00			`---`
			`layout: article`
			`title: Data Validation`
			`description: Quality in, Quality out! Enforce data quality checks at the point of SAS data entry, both directly via the web interface and also via Excel uploads.`
			`og_image: https://i.imgur.com/P64ijBB.png`
			`---`


feat: validations 2020-03-26 18:19:33 +00:00			`# Data Controller for SAS® - DQ Validations`

			`## Overview`
			`Quality in, Quality out! Data Controller lets you enforce quality checks at the point of data entry, both directly via the web interface and also via Excel uploads.`

			`## Default Checks`
			`By default, the following frontend rules are always applied:`

			`* Length checking per target table variable lengths`
			`* Type checking per target table datatypes`
			`* Not Null check per target table constraints`
			`* Primary Key checking per business key defined in MPE_TABLES`

			It is possible to configure a number of other rules by updating the MPE_VALIDATIONS table. Simply set the `BASE_LIB`, `BASE_DS` and `BASE_COL` values, and ensure `RULE_ACTIVE=1` for it to be applied.

			`## Configurable Checks`

			`Check back frequently as we plan to keep growing this list of checks.`

chore: automated commit 2021-09-06 08:54:31 +00:00			`\|Rule Type\|Example Value \|Description\|`
feat: validations 2020-03-26 18:19:33 +00:00			`\|---\|---\|---\|`
docs: viewer 2020-04-24 20:31:16 +00:00			`\|CASE\|UPCASE\|Will enforce the case of cell values. Valid values: UPCASE, LOWCASE, PROPCASE\|`
			`\|NOTNULL\|(defaultval)\|Will prevent submission if null values are present. Optional - provide a default value.\|`
feat: validations 2020-03-26 18:19:33 +00:00			`\|MINVAL\|1\|Defines a minimum value for a numeric cell\|`
fix: validations documentation 2020-03-26 18:59:11 +00:00			`\|MAXVAL\|1000000\|Defines a maximum value for a numeric cell\|`
docs: viewer 2020-04-24 20:31:16 +00:00			`\|HARDSELECT\|sashelp.class.name\|A distinct list of values (max 1000) are taken from this library.member.column reference, and the value must be in this list. This list may be supplemented by entries in the MPE_SELECTBOX table.\|`
			`\|SOFTSELECT\|dcdemo.mpe_tables.libref\|A distinct list of values (max 1000) are taken from this library.member.column reference, and the value may be in this list. This list may be supplemented by entries in the MPE_SELECTBOX table.\|`
chore: automated commit 2021-09-07 11:51:19 +00:00			`\|[HARDSELECT_HOOK](/dynamic-cell-dropdown)\|/logical/folder/stpname\|A SAS service (STP or Viya Job) or a path to a SAS program on the filesystem. User provided values must be in this list.\|`
			`\|[SOFTSELECT_HOOK](/dynamic-cell-dropdown)\|/physical/path/program.sas\|A SAS service (STP or Viya Job) or a path to a SAS program on the filesystem. User provided values may be in this list.\|`
chore: automated commit 2021-09-06 08:54:31 +00:00