尝试将MsSQL“转换”为MySQL时出现MySQL错误

Question

我试图在MySQL数据库上创建两个表，其MsSQL版本具有相同的特性，但出现语法错误。有什么建议吗？

CREATE TABLE logins 
      ( 
          `id` INT auto_increment NOT NULL, 
          `name` CHAR (10) NOT NULL, 
          `pw` CHAR (10) NOT NULL, 
          `email` VARCHAR (50) NULL, 
          `role` INT DEFAULT ((1)) NOT NULL, 
          CONSTRAINT `pk_logins` PRIMARY KEY (`id` ASC) 
      ); 

CREATE TABLE locations 
      ( 
          `lat` DECIMAL (10, 6) DEFAULT ((0)) NOT NULL, 
          `lon` DECIMAL (10, 6) DEFAULT ((0)) NOT NULL, 
          `dt` DATETIME NULL, 
          `id` INT auto_increment NOT NULL, 
          `owner` INT NULL 
      ); 

编辑：我得到的错误是

SQL query: 


CREATE TABLE logins 
      ( 
          `id` INT auto_increment NOT NULL, 
          `name` CHAR (10) NOT NULL, 
          `pw` CHAR (10) NOT NULL, 
          `email` VARCHAR (50) NULL, 
          `role` INT DEFAULT ((1)) NOT NULL, 
          CONSTRAINT `pk_logins` PRIMARY KEY (`id` ASC) 
      ) 
MySQL said: Documentation 

#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '((1)) NOT NULL, 
          CONSTRAINT `pk_logins` PRIMARY KEY (' at line 7 

Answer 1

试试这个。

CREATE TABLE logins 
      ( 
          `id` INT auto_increment NOT NULL, 
          `name` CHAR (10) NOT NULL, 
          `pw` CHAR (10) NOT NULL, 
          `email` VARCHAR (50) NULL, 
          `role` INT DEFAULT 1 NOT NULL, 
          PRIMARY KEY (`id`) 
      ); 

CREATE TABLE locations 
      ( 
          `lat` DECIMAL (10, 6) DEFAULT 0 NOT NULL, 
          `lon` DECIMAL (10, 6) DEFAULT 0 NOT NULL, 
          `dt` DATETIME DEFAULT NULL, 
          `id` INT AUTO_INCREMENT NOT NULL, 
          `owner` INT , 
          PRIMARY KEY (`id`) 
      ); 

Answer 2

CREATE TABLE logins 
     ( 
         `id` INT auto_increment NOT NULL, 
         `name` CHAR (10) NOT NULL, 
         `pw` CHAR (10) NOT NULL, 
         `email` VARCHAR (50) NULL, 
         `role` INT DEFAULT 1 NOT NULL, 
         CONSTRAINT `pk_logins` PRIMARY KEY (`id` ASC) 
     )