Methods to view the current date in SQL: Use the CURRENT_DATE function: Return the current system date. Use the GETDATE() function (Microsoft SQL Server only): Returns the current system date. Use NOW() function (MySQL and MariaDB only): Returns the current system date.
How to view the current date in SQL
There are several ways to view the current date in SQL:
Use the CURRENT_DATE function directly:
<code class="sql">SELECT CURRENT_DATE;</code>
Use the GETDATE() function (Microsoft SQL Server only):
<code class="sql">SELECT GETDATE();</code>
Use the NOW() function (MySQL and MariaDB only):
<code class="sql">SELECT NOW();</code>
These functions will return the current system date in YYYY-MM-DD format. For example, if the current date is March 8, 2023, the query result will be:
<code>2023-03-08</code>
Notice:
- The above function returns the date part, not the time part.
- Different database management systems (DBMS) may support different functions.
- Make sure to use the correct function in the query to match the DBMS you are using.
The above is the detailed content of How to view the current date in SQL. For more information, please follow other related articles on the PHP Chinese website!

SQLiseasytolearnforbeginnersduetoitsstraightforwardsyntaxandbasicoperations,butmasteringitinvolvescomplexconcepts.1)StartwithsimplequerieslikeSELECT,INSERT,UPDATE,DELETE.2)PracticeregularlyusingplatformslikeLeetCodeorSQLFiddle.3)Understanddatabasedes

The diversity and power of SQL make it a powerful tool for data processing. 1. The basic usage of SQL includes data query, insertion, update and deletion. 2. Advanced usage covers multi-table joins, subqueries, and window functions. 3. Common errors include syntax, logic and performance issues, which can be debugged by gradually simplifying queries and using EXPLAIN commands. 4. Performance optimization tips include using indexes, avoiding SELECT* and optimizing JOIN operations.

The core role of SQL in data analysis is to extract valuable information from the database through query statements. 1) Basic usage: Use GROUPBY and SUM functions to calculate the total order amount for each customer. 2) Advanced usage: Use CTE and subqueries to find the product with the highest sales per month. 3) Common errors: syntax errors, logic errors and performance problems. 4) Performance optimization: Use indexes, avoid SELECT* and optimize JOIN operations. Through these tips and practices, SQL can help us extract insights from our data and ensure queries are efficient and easy to maintain.

The role of SQL in database management includes data definition, operation, control, backup and recovery, performance optimization, and data integrity and consistency. 1) DDL is used to define and manage database structures; 2) DML is used to operate data; 3) DCL is used to manage access rights; 4) SQL can be used for database backup and recovery; 5) SQL plays a key role in performance optimization; 6) SQL ensures data integrity and consistency.

SQLisessentialforinteractingwithrelationaldatabases,allowinguserstocreate,query,andmanagedata.1)UseSELECTtoextractdata,2)INSERT,UPDATE,DELETEtomanagedata,3)Employjoinsandsubqueriesforadvancedoperations,and4)AvoidcommonpitfallslikeomittingWHEREclauses

SQLisnotinherentlydifficulttolearn.Itbecomesmanageablewithpracticeandunderstandingofdatastructures.StartwithbasicSELECTstatements,useonlineplatformsforpractice,workwithrealdata,learndatabasedesign,andengagewithSQLcommunitiesforsupport.

MySQL is a database system, and SQL is the language for operating databases. 1.MySQL stores and manages data and provides a structured environment. 2. SQL is used to query, update and delete data, and flexibly handle various query needs. They work together, optimizing performance and design are key.

The difference between SQL and MySQL is that SQL is a language used to manage and operate relational databases, while MySQL is an open source database management system that implements these operations. 1) SQL allows users to define, operate and query data, and implement it through commands such as CREATETABLE, INSERT, SELECT, etc. 2) MySQL, as an RDBMS, supports these SQL commands and provides high performance and reliability. 3) The working principle of SQL is based on relational algebra, and MySQL optimizes performance through mechanisms such as query optimizers and indexes.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

WebStorm Mac version
Useful JavaScript development tools

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft

Dreamweaver CS6
Visual web development tools

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software
