大约有 3,620 项符合查询结果(耗时:0.0176秒) [XML]

https://www.tsingfun.com/it/te... 

phpcms标签向导有什么用? - 更多技术 - 清泛网 - 专注C/C++及内核技术

...向导 按模型配置来生成GET标签(上图所示) 自定义SQL生成标签(上图所示) 碎片标签(上图所示) 三、管理标签向导 四、如何使用标签 五、常用标签分享 1、调用栏目ID为12的文章,按ID倒序排列,调取5条 {p...
https://www.tsingfun.com/it/tech/1399.html 

领域驱动设计系列(一):为何要领域驱动设计? - 更多技术 - 清泛网 - 专注...

...始使用一些轻量级的数据方法,比如使用Dapper然后自己写SQL语句,这本来是很不错的方式,但是大部分人的SQL能力实在不敢恭维,大部分写出来的SQL语句,甚至比EnityFramework生成的语句还差。 所以,我就想我们做项目,大部分...
https://bbs.tsingfun.com/thread-634-1-1.html 

正确重置MySQL密码 - 爬虫/数据库 - 清泛IT社区,为创新赋能!

...不管多么小心,时间长了,这样的事情总会发生几次。MySQL密码也是一样,把它写在文档上不太安全,记在脑子里又难免会忘记。如果你忘记了MySQL密码,如何重置它呢? 下面是错误答案:首先停止MySQL服务,然后使用skip-grant-ta...
https://stackoverflow.com/ques... 

The conversion of a datetime2 data type to a datetime data type resulted in an out-of-range value

...zed DateTime, which is set to 0001-01-01, which is outside of the range of SQL Server's DATETIME. Rather than using ApplyPropertyChanges, I'd suggest retrieving the object being modified, change the specific fields your form edits, then saving the object with those modifications; that way, only cha...
https://stackoverflow.com/ques... 

Can I use CASE statement in a JOIN condition?

The following image is a part of Microsoft SQL Server 2008 R2 System Views. From the image we can see that the relationship between sys.partitions and sys.allocation_units depends on the value of sys.allocation_units.type . So to join them together I would write something similar to this: ...
https://stackoverflow.com/ques... 

The object 'DF__*' is dependent on column '*' - Changing int to double

...ield type. The constraint is typically created automatically by the DBMS (SQL Server). To see the constraint associated with the table, expand the table attributes in Object explorer, followed by the category Constraints as shown below: You must remove the constraint before changing the field t...
https://stackoverflow.com/ques... 

How To Create Table with Identity Column

... Identity(seed,increment) docs.microsoft.com/en-us/sql/t-sql/statements/… – Gratzy Jul 31 '17 at 16:19 add a comment  |  ...
https://stackoverflow.com/ques... 

MySQL INNER JOIN select only one row from second table

...s who have payments, but only select their latest payment. I'm trying this SQL but i've never tried nested SQL statements before so I want to know what i'm doing wrong. Appreciate the help ...
https://stackoverflow.com/ques... 

String literals and escape characters in postgresql

... Note that on PostgreSQL 9.0 E'testing\\x20double-slash' will evaluate as 'testing\\x20double-slash', so only single-slash approach works for E'string' style literals – Alexander Aug 14 '12 at 14:02 ...
https://stackoverflow.com/ques... 

Large, persistent DataFrame in pandas

...ad chunks of the CSV files in a for-loop approach and add them e.g., to an SQLite database step by step: import pandas as pd import sqlite3 from pandas.io import sql import subprocess # In and output file paths in_csv = '../data/my_large.csv' out_sqlite = '../data/my.sqlite' table_name = 'my_tabl...