大约有 6,000 项符合查询结果(耗时:0.0119秒) [XML]
Convert varchar to uniqueidentifier in SQL Server
...e dashses from GUIDs when serializing, making it harder to copy paste into SQL to debug.
– David Cumps
Jan 23 '13 at 9:41
add a comment
|
...
Add alternating row color to SQL Server Reporting services report
How do you shade alternating rows in a SQL Server Reporting Services report?
18 Answers
...
Equivalent of varchar(max) in MySQL?
What is the equivalent of varchar(max) in MySQL?
6 Answers
6
...
COALESCE Function in TSQL
Can someone explain how the COALESCE function in TSQL works? The syntax is as follows
7 Answers
...
What is an MDF file? [closed]
...
SQL Server databases use two files - an MDF file, known as the primary database file, which contains the schema and data, and a LDF file, which contains the logs. See wikipedia. A database may also use secondary database file...
Oracle find a constraint
...in a table declaration. Or indeed a primary or unique key. For example:
SQL> create table t23 (id number not null primary key)
2 /
Table created.
SQL> select constraint_name, constraint_type
2 from user_constraints
3 where table_name = 'T23'
4 /
CONSTRAINT_NAME ...
How to switch databases in psql?
In MySQL , I used use database_name;
12 Answers
12
...
Create SQLite Database and table [closed]
...pplication code, I would like to create and then interact with one or more SQLite databases.
1 Answer
...
Handling List-types with Esqueleto
...asking for.
For your case I would insistently advise you to use a classic SQL queries. You can run n+1 queries, but do that only if it is rare and not often usable function, that for example prepares cached data (based on your variables names I suppose that it may not be heavy used and it worth a t...
Oracle中translate与replace的使用 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
... 三个参数中有一个是空,返回值也将是空值。
举例:SQL> select translate('abcdefga','abc','wo') 返回值 from dual;
返回值
-------
wodefgw
分析:该语句要将'abcdefga'中的'abc'转换为'wo',
由于'abc'中'a'...
