> ## Documentation Index
> Fetch the complete documentation index at: https://docs.thedatacity.com/llms.txt
> Use this file to discover all available pages before exploring further.

# CompanyJobPostingByCertificationsSkill

> 3 fields on the CompanyJobPostingByCertificationsSkill schema — covers Job Postings.

<Info>
  **3 fields** · across **1 category**.
</Info>

This schema is part of Industry Engine. Use the [data dictionary browser](/data-dictionary) to search and filter every field, or jump straight to a field below. Array fields that reference another schema link to that schema's own page.

## Job Postings

| Field name                                                   | Description                                                                                                                                                                                                                                                                                                                | Data type | Source    | Updated |
| ------------------------------------------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------- | --------- | ------- |
| <span id="median-posting-duration" />`MedianPostingDuration` | Not currently populated and always empty. Reserved for the median number of days that postings requesting this certification stayed open, but the pipeline does not load a value for it. Job postings data is a paid upgrade and is not included for all customers.                                                        | `number`  | Lightcast | Monthly |
| <span id="skill-name" />`SkillName`                          | The name of a certification requested in this company's job postings, as identified by Lightcast, for example 'Certified Public Accountant'. Job postings data is a paid upgrade and is not included for all customers.                                                                                                    | `string`  | Lightcast | Monthly |
| <span id="unique-postings" />`UniquePostings`                | The number of unique job postings from this company that requested this certification. Covers the most recent five years of postings: the upstream extract is limited to that window, so this is a five-year total rather than an all-time one. Job postings data is a paid upgrade and is not included for all customers. | `integer` | Lightcast | Monthly |