大约有 37,000 项符合查询结果(耗时:0.0273秒) [XML]

https://stackoverflow.com/ques... 

Escape single quote character for use in an SQLite query

I wrote the database schema (only one table so far), and the INSERT statements for that table in one file. Then I created the database as follows: ...
https://stackoverflow.com/ques... 

Split function equivalent in T-SQL?

...to split '1,2,3,4,5,6,7,8,9,10,11,12,13,14,15...' (comma delimited) into a table or table variable. 15 Answers ...
https://stackoverflow.com/ques... 

Fetch the row which has the Max value for a column

Table: 35 Answers 35 ...
https://stackoverflow.com/ques... 

Script entire database SQL-Server

Is there a way I can get a scripting of all tables, procs, and other objects from a database? I know there's an option to script the database but it only gave me some sort of top level script, certainly not a script to create all tables, procs, udfs, .etc. ...
https://stackoverflow.com/ques... 

How to speed up insertion performance in PostgreSQL

I am testing Postgres insertion performance. I have a table with one column with number as its data type. There is an index on it as well. I filled the database up using this query: ...
https://stackoverflow.com/ques... 

When and why are database joins expensive?

...nality when (if) they set up indexes. It is important to understand that table scans (examination of every row in a table in the course of producing a join) are rare in practice. A query optimiser will choose a table scan only when one or more of the following holds. There are fewer than 200 row...
https://stackoverflow.com/ques... 

How to customize the background/border colors of a grouped table view cell?

...to customize both the background and the border color of a grouped-style UITableView. 11 Answers ...
https://stackoverflow.com/ques... 

How to delete migration files in Rails 3

... or staging, it's safer to just write another migration that destroys your table or columns. Another great reference for migrations is: http://guides.rubyonrails.org/migrations.html share | improve...
https://stackoverflow.com/ques... 

Why are joins bad when considering scalability?

...ted comparison for a join is now much smaller and potentially pre-indexed. Table partitions (helps with large data sets by spreading the load out to multiple disks, or limiting what might have been a table scan down to a partition scan) OLAP (pre-computes results of certain kinds of queries/joins. I...
https://stackoverflow.com/ques... 

Is there a Boolean data type in Microsoft SQL Server like there is in MySQL? [duplicate]

...rticularly user friendly. For instance, I'm displaying a datagrid of a sql table, and I'd like the users to be able to see/edit true or false, not 1 or 0. – Charles Clayton Jul 17 '15 at 16:04 ...