current_database()函数 current_database()函数用于返回当前数据库的名称。 SELECT CURRENT_DATABASE(); 1. 执行以上SQL语句,将返回当前数据库的名称。 代码示例 下面给出一个完整的代码示例,展示如何使用MySQL的版本查询函数。 -- 创建一个测试数据库 CREATE DATABASE testdb; -- 切换到测试数据库 USE testdb...
mysql数据库currentSchema不生效 显示mysql数据库内容,一、前言1.1什么是数据库(DataBase,简称DB)数据库即存放数据的仓库,只不过这个仓库是在计算机存储设备上,而且数据是按一定的格式存放的。数据库是长期存放在计算机内、有组织、可共享的数据集合将所有数据存放到
import java.sql.*; public class CurrentDateFunction { public static void main(String[] args) { Connection conn = null; Statement stmt = null; try { // 连接数据库 conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/mydatabase", "username", "password"); // 创建Statement对象 st...
schema : connection.CurrentDatabase(); restrictions[2] = name; DataTable procTable = connection.GetSchema("procedures", restrictions);if(procTable.Rows.Count >1)thrownewMySqlException(Resources.ProcAndFuncSameName);if(procTable.Rows.Count ==0)thrownewMySqlException(String.Format(Resources.InvalidPr...
MySQL is an open-source application that provides a useful platform when it comes to querying databases. Understanding how to query the current database is essential in order to get the most out of the platform. By familiarizing yourself with the structure and syntax of a MySQL ...
The function is NOW(), no quotes and no dollar sign. (In SQL; PHP would be different.) It depends on if you want your programming language or the database to grab the current date. But, in SQL, NOW() would work. http://dev.mysql.com/doc/mysql/en/date-and-time-functions.html ...
What difference between NOW() , SYSDATE() , CURRENT_DATE() in MySQL and where it can be used in real scenario . I tried NOW(),SYSDATE(),Current_Date() when I insert data into a table and column datatype is TIMESTAMP all are given same date and time. mysql database datetime Shar...
. After review, it may be pushed to the relevant source trees for release in the next version. You can access the patch from:http://lists.mysql.com/commits/636132748 Staale Smedseng 2009-01-20 Adding a test to verify thatBug#27208"If no current database, character_set_database !
Which backup features do you require for your MySQL database backups? Hot, Online Backups High Performance Compression Encrypted Backup Incremental Backup (Data that has changed since the last backup) Partial Backup (Target particular tables or tablespaces) ...
In MySQL, the current schema is usually determined by the USE statement or by specifying the schema prefix in queries. The SELECT DATABASE() statement can also be used to determine the current schema, but it is less efficient than using the schema prefix. ...