search
HomeDatabaseSQLHow to check the date type behind where in sql

When querying date types in the SQL WHERE clause, you can use the following operators: equal to, not equal to, greater than, less than, greater than or equal to, less than or equal to, BETWEEN, NOT BETWEEN.

How to check the date type behind where in sql

Query method of date type in WHERE clause in SQL

Get straight to the point:
In SQL, the following operators can be used to query date types in the WHERE clause:

  • Equal to (=)
  • Not equal to ()
  • Greater than (>)
  • Less than (
  • Greater than or equal to (>=)
  • Less than or equal to (
  • BETWEEN (within the specified range)
  • NOT BETWEEN (not within the specified range)

Detailed expansion:

1. Equal to (=)
The most direct comparison method, the query date is equal to the specified date.
For example: WHERE date_column = '2023-03-08'

2. Not equal to ()
Query date is not equal to Specify the date.
For example: WHERE date_column '2023-03-08'

3. Greater than (>)
The query date is greater than the specified date.
For example: WHERE date_column > '2023-03-08'

4. Less than (
The query date is less than the specified date.
For example: WHERE date_column

5. Greater than or equal to (>=)
Query date is greater than or equal to the specified date.
For example: WHERE date_column >= '2023-03-08'

6. Less than or equal to (
Query date less than or equal to the specified date.
For example: WHERE date_column

7. BETWEEN (within the specified range)
The query date is in Between two specified dates (inclusive of boundaries).
For example: WHERE date_column BETWEEN '2023-03-01' AND '2023-03-08'

8. NOT BETWEEN (not within the specified range)
The query date is not between two specified dates (excluding boundaries).
For example: WHERE date_column NOT BETWEEN '2023-03-01' AND '2023-03-08'

The above is the detailed content of How to check the date type behind where in sql. For more information, please follow other related articles on the PHP Chinese website!

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
What are the different types of data partitioning in SQL (horizontal, vertical)?What are the different types of data partitioning in SQL (horizontal, vertical)?Mar 13, 2025 pm 02:01 PM

The article discusses horizontal and vertical data partitioning in SQL, focusing on their impact on performance and scalability. It compares benefits and considerations for choosing between them.

How to handle foreign key constraints in SQL delete rowsHow to handle foreign key constraints in SQL delete rowsMar 04, 2025 pm 05:52 PM

This article addresses deleting rows with foreign key constraints in relational databases. It details methods for handling constraint violations, including cascading deletes, restricting deletes, and setting nulls. The article emphasizes best pract

How do I use aggregate functions in SQL to summarize data (SUM, AVG, COUNT, MIN, MAX)?How do I use aggregate functions in SQL to summarize data (SUM, AVG, COUNT, MIN, MAX)?Mar 13, 2025 pm 01:50 PM

The article explains how to use SQL aggregate functions (SUM, AVG, COUNT, MIN, MAX) to summarize data, detailing their uses and differences, and how to combine them in queries.Character count: 159

What are the security risks of using dynamic SQL and how can I mitigate them?What are the security risks of using dynamic SQL and how can I mitigate them?Mar 13, 2025 pm 01:59 PM

The article discusses security risks of dynamic SQL, focusing on SQL injection, and provides mitigation strategies like using parameterized queries and input validation.

What are the different transaction isolation levels in SQL (READ UNCOMMITTED, READ COMMITTED, REPEATABLE READ, SERIALIZABLE)?What are the different transaction isolation levels in SQL (READ UNCOMMITTED, READ COMMITTED, REPEATABLE READ, SERIALIZABLE)?Mar 13, 2025 pm 01:56 PM

The article discusses SQL transaction isolation levels: READ UNCOMMITTED, READ COMMITTED, REPEATABLE READ, and SERIALIZABLE. It examines their impact on data consistency and performance, noting that higher isolation ensures greater consistency but ma

What are the ACID properties of transactions in SQL?What are the ACID properties of transactions in SQL?Mar 13, 2025 pm 01:54 PM

The article discusses the ACID properties (Atomicity, Consistency, Isolation, Durability) in SQL transactions, crucial for maintaining data integrity and reliability.

How to test SQL delete rowsHow to test SQL delete rowsMar 04, 2025 pm 05:53 PM

This article details effective testing strategies for SQL DELETE operations. It emphasizes verifying correct row deletion via pre- and post-deletion data comparisons, row counts, and negative testing. Best practices, including backups, transaction

What is the difference between SQL delete rows and truncateWhat is the difference between SQL delete rows and truncateMar 04, 2025 pm 05:49 PM

This article compares SQL's DELETE and TRUNCATE commands. DELETE removes rows individually, allowing conditional removal and transaction rollback. TRUNCATE is faster, removing all rows at once, but lacks rollback capability. Performance and data re

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

Repo: How To Revive Teammates
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
1 months agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Dreamweaver Mac version

Dreamweaver Mac version

Visual web development tools

MantisBT

MantisBT

Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SAP NetWeaver Server Adapter for Eclipse

SAP NetWeaver Server Adapter for Eclipse

Integrate Eclipse with SAP NetWeaver application server.

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)