将employees表中的所有员工的last_name和first

SQL244. 将employees表中的所有员工的last_name和first_name通过引号连接起来。

name
Facello'Georgi
Simmel'Bezalel
Bamford'Parto
Koblick'Chirstian
Maliniak'Kyoichi
Preusig'Anneke
Zielinski'Tzvetan
Kalloufi'Saniya
Peac'Sumant
Piveteau'Duangkaew
Sluis'Mary

示例1

输入:

drop table if exists  `employees` ; 
CREATE TABLE `employees` (
  `emp_no` int(11) NOT NULL,
  `birth_date` date NOT NULL,
  `first_name` varchar(14) NOT NULL,
  `last_name` varchar(16) NOT NULL,
  `gender` char(1) NOT NULL,
  `hire_date` date NOT NULL,
  PRIMARY KEY (`emp_no`));
INSERT INTO employees VALUES(10001,'1953-09-02','Georgi','Facello','M','1986-06-26');
INSERT INTO employees VALUES(10002,'1964-06-02','Bezalel','Simmel','F','1985-11-21');
INSERT INTO employees VALUES(10003,'1959-12-03','Parto','Bamford','M','1986-08-28');
INSERT INTO employees VALUES(10004,'1954-05-01','Chirstian','Koblick','M','1986-12-01');
INSERT INTO employees VALUES(10005,'1955-01-21','Kyoichi','Maliniak','M','1989-09-12');
INSERT INTO employees VALUES(10006,'1953-04-20','Anneke','Preusig','F','1989-06-02');
INSERT INTO employees VALUES(10007,'1957-05-23','Tzvetan','Zielinski','F','1989-02-10');
INSERT INTO employees VALUES(10008,'1958-02-19','Saniya','Kalloufi','M','1994-09-15');
INSERT INTO employees VALUES(10009,'1952-04-19','Sumant','Peac','F','1985-02-18');
INSERT INTO employees VALUES(10010,'1963-06-01','Duangkaew','Piveteau','F','1989-08-24');
INSERT INTO employees VALUES(10011,'1953-11-07','Mary','Sluis','F','1990-01-22');

输出:

Facello'Georgi
Simmel'Bezalel
Bamford'Parto
Koblick'Chirstian
Maliniak'Kyoichi
Preusig'Anneke
Zielinski'Tzvetan
Kalloufi'Saniya
Peac'Sumant
Piveteau'Duangkaew
Sluis'Mary

原站题解

Sqlite 解法, 执行用时: 10ms, 内存消耗: 3192KB, 提交时间: 2020-11-18

select (last_name||"'"|| first_name)as name 
        from employees group by emp_no

Sqlite 解法, 执行用时: 10ms, 内存消耗: 3192KB, 提交时间: 2020-10-30

select last_name ||"'"|| first_name as name from employees

Sqlite 解法, 执行用时: 10ms, 内存消耗: 3228KB, 提交时间: 2021-07-28

SELECT
    (last_name || "'" || first_name) AS name
FROM
    employees

Sqlite 解法, 执行用时: 10ms, 内存消耗: 3292KB, 提交时间: 2020-09-07

select last_name||"'"||first_name as name
from employees

Sqlite 解法, 执行用时: 10ms, 内存消耗: 3296KB, 提交时间: 2020-07-12

select last_name||"'"||first_name as name from employees

详情