Understanding the Use of NOT NULL Constraint in BigQuery

May 14, 2024 at 2:05:14 PM

Understanding the Use of NOT NULL Constraint in BigQuery

In BigQuery, the NOT NULL constraint is a key tool when working with databases. When creating a table, you can specify if a specific column should not be null by adding the NOT NULL to the column declaration.

You can verify this constraint on an existing table by checking the column (field) MODE. The MODE can have three values:

  • NULLABLE: The default value if nothing is set.
  • REQUIRED: Set if NOT NULL is declared for the column.
  • REPEATED: Used for ARRAYS.

If an attempt is made to insert or update data that violates this constraint, the operation will fail. Therefore, correctly setting the MODE for your field is crucial to ensure the data inserted or updated in a table meets your expectations.

Q&A

Have more questions on this topic? Ask our AI assistant for in-depth insights.

Read more from sources 👇

Constantin Lungu
Constantin Lungu

Top Creator

Top BigQuery Creator

Constantin Lungu is a Top BigQuery Creator. Part of Swipe Insight Select, a curated list of top creators.

Top BigQuery Creator
- The NOT NULL constraint in BigQuery allows users to declare if a column should not be null when creating a table. This c... Visit Source Open external source URL

The Only Digital Marketing Feed You'll Ever Need.

Stay informed your way. Tailored updates when and how you want them. 100% Free.

10,000+ Users

500+ Sources

1000+ Tools

Or

Related Posts

Top-Notch Google Ads Audit Tool

Top-Notch Google Ads Audit Tool

Featured
Google Sheets Integrates BigQuery Saved Queries

Google Sheets Integrates BigQuery Saved Queries

Google
Google

Official Source

Official Source

Google is a Official Source. The source has been verified by Swipe Insight team.

Official Source
BigQuery Expands Search Index Capabilities with INT64 and TIMESTAMP Support

BigQuery Expands Search Index Capabilities with INT64 and TIMESTAMP Support

Google Cloud
Google Cloud

Official Source

Official Source

Google Cloud is a Official Source. The source has been verified by Swipe Insight team.

Official Source
Google Ends Free Access to Gemini in BigQuery, Announces Paid Plans

Google Ends Free Access to Gemini in BigQuery, Announces Paid Plans

Google Cloud
Google Cloud

Official Source

Official Source

Google Cloud is a Official Source. The source has been verified by Swipe Insight team.

Official Source
Google Cloud Enhances Looker with Major User Experience Updates

Google Cloud Enhances Looker with Major User Experience Updates

Sean Zinsmeister
Sean Zinsmeister

Official Source

Official Source

Sean Zinsmeister is a Official Source. The source has been verified by Swipe Insight team.

Official Source
BigQuery Launches Gemini-Enhanced SQL Translation Features

BigQuery Launches Gemini-Enhanced SQL Translation Features

Google Cloud
Google Cloud

Official Source

Official Source

Google Cloud is a Official Source. The source has been verified by Swipe Insight team.

Official Source
BigQuery Data Transfer Service Launches Data Source Change Log for Schema Updates

BigQuery Data Transfer Service Launches Data Source Change Log for Schema Updates

Google Cloud
Google Cloud

Official Source

Official Source

Google Cloud is a Official Source. The source has been verified by Swipe Insight team.

Official Source
BigQuery Introduces AI-Augmented Data Preparation with Gemini

BigQuery Introduces AI-Augmented Data Preparation with Gemini

Google Cloud
Google Cloud

Official Source

Official Source

Google Cloud is a Official Source. The source has been verified by Swipe Insight team.

Official Source

Related Tools

Marketing Auditor logo

Marketing Auditor

Verified Tool

Verified Tool

Marketing Auditor is a Verified Tool. Want to get this badge? Contact us.

Verified Tool

Automated audits for Google Ads and Analytics.

Get Featured Here

Showcase your tool in this list.

Contact Us
Databricks logo

Databricks

Generative AI-powered data intelligence platform

Data Engineering
GA4 SQL logo

GA4 SQL

Verified Tool

Verified Tool

GA4 SQL is a Verified Tool. Want to get this badge? Contact us.

Verified Tool

Generate GA4 BigQuery queries easily

Data Analysis
TapClicks logo

TapClicks

Automated marketing solutions powered by your data

Data Engineering
Stitch logo

Stitch

Automated cloud data pipelines, no coding needed

Data Engineering
Akkio logo

Akkio

AI-powered analytics for agencies

Data Analysis
NinjaCat logo

NinjaCat

AI-powered marketing data and analytics platform

Reporting
Funnel logo

Funnel

Aggregate and analyze marketing data seamlessly

Reporting
Fivetran logo

Fivetran

Effortlessly centralize and move data from any source

Data Engineering
Power My Analytics logo

Power My Analytics

Automate and integrate your marketing data

Reporting

Get Featured Here

Showcase your tool in this list.

Contact Us