Which type of PL/SQL construct would you use to automatically co
rrect the error resulting from a statement that was suspended due to
a space-related problem?
A. functions
B. package
C. pr...
分类:
数据库 时间:
2014-12-20 20:59:04
阅读次数:
206
为什么要使用PreparedStatement?一、通过PreparedStatement提升性能 Statement主要用于执行静态SQL语句,即内容固定不变的SQL语句。Statement每执行一次都要对传入的SQL语句编译一次,效率较差。 某些情况下,SQL语句只是其中的参数有所不同,其余子句...
分类:
数据库 时间:
2014-12-20 19:35:26
阅读次数:
407
iterator Behind the scenes, the for statement calls iter() on the container object. The function returns an iterator object that defines the method __next__() which accesses elements in the contain...
分类:
编程语言 时间:
2014-12-20 15:40:31
阅读次数:
251
Defining a Public Database Link: ExampleThe following statement defines a shared public database link named remote that refers to the database specifi...
分类:
数据库 时间:
2014-12-20 14:11:43
阅读次数:
200
One TopCoder article introduces a very interesting alternative solution to Longest Common Sequences problem.It is based on this statement (http://comm...
分类:
其他好文 时间:
2014-12-20 10:26:37
阅读次数:
240
MySQL通过binlog来记录整个数据的变更过程,因此我们只要有MySQL的binlog日志即可完整的还原数据库。MySQL binlog日志记录有3种不同的方式,即:STATEMENT,MIXED,ROW。对于不同的日志模式,生成的binlog有不同的记录方式。对于MIXED(部分SQL语句)和ROW模式是以base-64方式记录,无法看到真实的SQL语句。因此我们需要使用base64-out...
分类:
数据库 时间:
2014-12-19 22:04:54
阅读次数:
279
// statement (语句)// variable (变量)// assignment(赋值)// declare(申明)// typing(类型申明)var a, b;var a;var b;var a = 1;var b = 2;var a, b;a = 1;b = 2;// array(...
分类:
Web程序 时间:
2014-12-19 17:09:25
阅读次数:
192
[转载] MySql5.6操作时报错:You must SET PASSWORD before executing this statement解决转载: http://blog.csdn.net/yanzi1225627/article/details/8694358参考前文利用安全模式成功登陆,...
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其他好文 时间:
2014-12-19 17:09:14
阅读次数:
139
在写代码之前在项目中新建一个文件夹,然后将java和mysql的驱动器复制进去,然后添加到build path,就OK了。
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
public class...
分类:
数据库 时间:
2014-12-18 22:23:27
阅读次数:
243
Thanks to Core Data. Even without learning SQL and database, you’re able to perform create, select, update and delete operation. However, for those wi...
分类:
数据库 时间:
2014-12-17 09:07:42
阅读次数:
287