• 2022-05-26
    通过SQL语句,如何往表“Persons”插入一条新纪录?
    A: INSERT ('Jimmy', 'Jackson') INTO Persons
    B: INSERT INTO Persons VALUES ('Jimmy', 'Jackson')
    C: INSERT VALUES ('Jimmy', 'Jackson') INTO Persons
    D: INSERT ('Jimmy', 'Jackson') INTO Persons Values
  • B

    内容

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      通过 SQL,您如何从 "Persons" 表中选取所有的列? A: SELECT [all] FROM Persons B: SELECT Persons C: SELECT * FROM Persons D: SELECT *.Persons

    • 1

      通过 SQL,您如何返回 "Persons" 表中记录的数目? A: SELECT COLUMNS() FROM Persons B: SELECT COLUMNS(*) FROM Persons C: SELECT COUNT() FROM Persons D: SELECT COUNT(*) FROM Persons

    • 2

      下列哪些语句格式可以实现多行数据插入() A: insert into表名values (值列表) B: 表名insert into values(值列表) C: INSERT INTO表名select语句 D: Insert into表名(值列表)

    • 3

      智慧职教: 执行完下面的SQL语句,goods表中有几条记录?DROP TABLE IF EXISTS sCarInfo;CREATE TABLE sCarInfo(gdID INT ,uID INT,scNum INT,PRIMARY KEY(gdID,uID)) CHARSET utf8;INSERT INTO sCarInfo VALUES(1,1,2);INSERT INTO sCarInfo VALUES(1,1,3);INSERT INTO sCarInfo VALUES(2,1,2);INSERT INTO sCarInfo VALUES(1,2,2);INSERT INTO sCarInfo VALUES(1,null,2);INSERT INTO sCarInfo VALUES(null,1,2);

    • 4

      向“成绩”表末尾插入一条“学号”为“08102002”,“课程编号”为“4001”,“成绩”为“86”的新记录,正确的语句是()。 A: INSERT INTO成绩VALUES(08102002,4001,86) B: INSERT INTO成绩VALUES("08102002","4001",86) C: INSERT FOR成绩VALUES(08102002,4001,"86") D: INSERT FOR成绩VALUES("08102002","4001",86)