SQL指的是()
A.Structured Query Language
B.Strong Question Language
C.Structured Question Language
D.Strong Query Language
A.Structured Query Language
B.Strong Question Language
C.Structured Question Language
D.Strong Query Language
SQL语句中修改结构命令是()。
A.ALTER TABLE
B.MODIFY TABLE
C.ALTER STRUCTURE
D.h,0DIPY STRUCTURE
A.A.MODIFY TABLE
B.B.MODIFY STRUCTURE
C.C.ALTER TABLE
D.D.ALTER STRUCTURE
SQL语句中修改表结构的命令是 ______。
A.ALTER TABLE
B.MODIFY TABLE
C.ALTER STRUCTURE
D.MODIFY STRUCTURE
SQL语句中修改表结构的命令是______。
A.MODIFY TABLE
B.MODIFY STRUCTURE
C.ALTER TABLE
D.ALTER STRUCTURE
SQL语句中修改表结构的命令是_________。
A.MODIFY TABLE
B.MODIFY STRUCTURE
C.ALTER TABLE
D.ALTER STRUCTURE
SQL语句中,用于修改表结构的SQL命令是______。
A.ALTER TABLE
B.MODIFY TABLE
C.ALTER STRUCTURE
D.MODIFY STRUCTURE
A. Access pathanalysis is not performed for SQL statements.
B. SQL structure analysis is not performed for SQL statements.
C. SQL Profile recommendations are not generated for SQL statements.
D. Staleness and absence of statistics are not checked for the objects in the SQL Tuning Advisor. In this case, SQL Tuning Advisor produces recommendations based on statistical checks, access path analysis, and SQL structure analysis. SQL profile recommendations are not generated.
SQL语句中修改表结构的命令是()。
A.MDIFY TABLE
B.MODIFY STRUCTURE
C.ALTER TABIE
D.AITER STRUCTURE
下列关于视图的描述,正确的是()。
A.可以使用MODIFY STRUCTURE命令修改视图的结构
B.视图不能删除,否则影响原来的数据文件
C.视图是对表的复制产生的
D.使用SQL对视图进行查询时,必须事先打开该视图所在的数据库
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