SET SHOWPLAN_ALL { ON | OFF }It will not
execute the TSQL statements.It cannot be specified inside a stored
procedure,must be the only statements in a...
分类:
数据库 时间:
2014-07-22 23:11:32
阅读次数:
646
javascript中由于是弱类型,所以在比较的时候有较大的麻烦。这次专门做了总结:Comparison
OperatorsComparison operators are used in logical statements to determine
equality or difference ...
分类:
编程语言 时间:
2014-05-14 11:06:40
阅读次数:
391
1.for循环语句:for loop_counter in [REVERSE]
lowest_number .. highest_numberloop {.statements.}end loop;示例:declare v_i
number(4) := 0;begin for v_i in 0...
分类:
其他好文 时间:
2014-05-10 00:19:58
阅读次数:
396
Multi-Query Execution
With multi-query execution Pig processes an entire script or a batch of statements at once....
分类:
其他好文 时间:
2014-05-04 17:52:35
阅读次数:
336
DDL :Data Definition Language (DDL) statements
are used to define the database structure or schema. Some examples:CREATE - to
create objects in the da...
分类:
数据库 时间:
2014-05-03 22:21:22
阅读次数:
410
C语言的控制流程是基础中的基础,几乎没有程序不用到选择和循环控制的,今天又来看这些内容,以求入门。选择结构:
只有一个选项:这个肯定很easy啊,就是 if(expression){ Statements; } 这里就是要注意代码的简单易懂,ex...
分类:
编程语言 时间:
2014-05-02 00:19:50
阅读次数:
333
Consider the following exercise, found in a
generic linear algebra textbook.LetAbe ann×nmatrix. Prove that the following
statements are equivalent:Ais...
分类:
其他好文 时间:
2014-05-01 13:45:04
阅读次数:
349