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Plsqldev SQL含中文查无结果 - 爬虫/数据库 - 清泛IT社区，为创新赋能！
设置环境变量：NLS_LANG
值为：SIMPLIFIED CHINESE_CHINA.ZHS16GBK
Sql server默认的端口是多少？如何开启远程连接？ - 爬虫/数据库 - 清泛IT...
默认是1433，可以在配置管理器中查看：
需要开放1433端口，可以参考《Windows、Linux开放指定端口》。
另外，开启远程连接还需要启用TCP/IP，然后重启服务，步骤如下：
ERROR: Error 1005: Can't create table (errno: 121)
I have troubles with forward engineering my MySQL database into WAMP server..
I was going to post an image of the schema but as this is my first post I can't.
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UCenter实现各系统通信的原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...查用户id变量$discuz_uid是否为空来判断，用户是否登录（包括从别的应用登录。）
如果用户从bbs登录，则在登录验证成功后通过如下代码：
$ucsynlogin = $allowsynlogin ? uc_user_synlogin($discuz_uid) : '';
通知其它应用----“用户已从bbs登...
String concatenation in MySQL
I am using MySQL and MySQL Workbench 5.2 CE. When I try to concatenate 2 columns, last_name and first_name , it doesn't work :
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How to convert java.sql.timestamp to LocalDate (java8) java.time?
In Java 8, how can I convert a Timestamp (in java.sql ) to a LocalDate (in java.time )?
3 Answers
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How do I alter the position of a column in a PostgreSQL database table?
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"Alter column position" in the PostgreSQL Wiki says:
PostgreSQL currently defines column
order based on the attnum column of
the pg_attribute table. The only way
to change column order is either by
recreating the table, or by adding
columns and rota...
栈和队列的面试题Java实现 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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通俗一点讲：已知一组数据1、2、3、4、5依次进栈，那么它的出栈方式有很多种，请判断一下给出的出栈方式是否是正确的？
例如：
数据：
1、2、3、4、5
出栈1：
5、4、3、2、1（正确）
出栈2：
4、5、3、2、1...
How to get a date in YYYY-MM-DD format from a TSQL datetime field?
How do I retrieve a date from SQL Server in YYYY-MM-DD format? I need this to work with SQL Server 2000 and up. Is there a simple way to perform this in SQL Server or would it be easier to convert it programmatically after I retrieve the result set?
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Fastest Way to Find Distance Between Two Lat/Long Points
I currently have just under a million locations in a mysql database all with longitude and latitude information.
15 Answers...