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2025年计算机二级MySQL重要警示试题及答案.docx

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2025年计算机二级MySQL重要警示试题及答案

姓名:____________________

一、单项选择题(每题2分,共10题)

1.MySQL数据库中,以下哪个是错误的用户权限设置?

A.SELECT

B.INSERT

C.DELETE

D.UPDATE

2.在MySQL中,以下哪个是正确的数据类型定义?

A.INT(5)

B.VARCHAR(5)

C.CHAR(5)

D.TEXT(5)

3.在MySQL中,要删除一个名为“students”的表,以下哪个是正确的SQL语句?

A.DROPTABLEstudents;

B.DELETETABLEstudents;

C.ERASETABLEstudents;

D.TRUNCATETABLEstudents;

4.在MySQL中,以下哪个是正确的日期时间类型?

A.TIMESTAMP

B.DATE

C.TIME

D.ALLOFTHEABOVE

5.在MySQL中,以下哪个是正确的创建索引的语句?

A.CREATEINDEXindex_nameONtable_name(column_name);

B.INDEXindex_nameONtable_name(column_name);

C.INDEXtable_nameONcolumn_name(index_name);

D.CREATEINDEXONtable_name(column_name);

6.在MySQL中,以下哪个是错误的约束条件?

A.NOTNULL

B.UNIQUE

C.DEFAULT

D.FOREIGNKEY

7.在MySQL中,以下哪个是正确的视图创建语句?

A.CREATEVIEWview_nameASSELECT*FROMtable_name;

B.VIEWview_nameASSELECT*FROMtable_name;

C.SELECT*INTOview_nameFROMtable_name;

D.CREATEVIEWtable_nameASSELECT*FROMview_name;

8.在MySQL中,以下哪个是正确的存储过程创建语句?

A.CREATEPROCEDUREprocedure_name(INparameter_nameparameter_type);

B.PROCEDUREprocedure_name(INparameter_nameparameter_type);

C.CREATEPROCEDUREprocedure_name(OUTparameter_nameparameter_type);

D.PROCEDUREprocedure_name(OUTparameter_nameparameter_type);

9.在MySQL中,以下哪个是正确的触发器创建语句?

A.CREATETRIGGERtrigger_nameBEFOREINSERTONtable_nameFOREACHROW;

B.TRIGGERtrigger_nameBEFOREINSERTONtable_nameFOREACHROW;

C.CREATETRIGGERtrigger_nameAFTERINSERTONtable_nameFOREACHROW;

D.TRIGGERtrigger_nameAFTERINSERTONtable_nameFOREACHROW;

10.在MySQL中,以下哪个是错误的SQL语句?

A.SELECT*FROMtable_nameWHEREcolumn_name=value;

B.SELECT*FROMtable_nameWHEREcolumn_nameLIKE%value%;

C.SELECT*FROMtable_nameWHEREcolumn_nameIN(value1,value2,value3);

D.SELECT*FROMtable_nameWHEREcolumn_nameBETWEENvalue1ANDvalue2;

二、多项选择题(每题3分,共10题)

1.MySQL数据库中,以下哪些是常用的数据类型?

A.INT

B.VARCHAR

C.DATE

D.FLOAT

E.BOOLEAN

2.在MySQL中,以下哪些是常用的存储引擎?

A.MyISAM

B.InnoDB

C.MERGE

D.CSV

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