# Creating Collection

A collection may be created with or without explicitly defining schema definition for the records. However, it is always recommended to define a schema for the collections of records.

### Simple Collection

A Simple Collection can be created in the data section of the Internet object document by prefixing each record with a tidal sign `(~ U+007E)`. It enables the parser to identify the next record when multiple records are sent.

In the Simple Collection as the schema is not defined the type and the structure of collection records can differ.

```ruby
# Creating a simple Collection
---
~ Ironman, 20, Male, {Bond Street, New York, NY}
~ Spiderman, 25, Male, {Duke Street, New York, NY}, cool

```

### **Explicit Collection**

An Explicit Collection is created by explicitly defining the schema for the collection of records. Prefixing schema with the tidal sign `(~ U+007E)` enables the parser to understand the multiple records that may be sent according to a particular schema definition.

```ruby
# Creating an Explicit Collection
~ $address: {street, city, state}
~ $schema: { 
            name: string, 
            age: {int, min:28}, 
            gender: {string, choices: [Male, Female]}, 
            $address
            }
---
~ Ironman, 20, Male, {Bond Street, New York, NY}
~ Spiderman, 25, Male, {Duke Street, New York, NY}
~ Wonderwoman, 25, Female, {Z street, San Francisco, California}
```

Here in the code snippet, multiple records are passed in the data section of the document using Collections.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.internetobject.org/the-collections/creating-collection.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.