SQL Server Text type vs. varchar data type: As a rule of thumb, if you ever need you text value to exceed 200
Given two tables books and authors where each of them already have a unique key which is of varchar type which identifys them throughout my ecosystem. Does it make sense to use those keys as Foreignke
I am working with a database which is very slow. We use ASP.NET to access/populate the database. I am new to the database and I found that some of the thing are not properly done. I want to get a more
Certainly a noobish question, but I got to ask: :-) Assuming a column of type varchar and length 255 and the longest string stored in a row at this开发者_如何学编程 column shold have length 200. What
I have a column in sql server 2008 which is a varchar(255). The column is full of \'measurements\' and there are around 15,000 records.
When we add a new table, we made a mistake : a field was a varchar(255), but we have to write join queries.
I have a central database. Applications sit on multiple servers and push data to the server. Now, there is one scenario where in a string data which is longer than the maximum capacity of varchar. So
Ok, so I have a bit of a mystery on my hands.I hve a bunch of dates in all different, mostly American, formats.I need to add them to a mysql database in a DAT开发者_运维技巧E field.So I wrote the blow
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ColAColBColCColD data1rata1TTest1 data1rata3FTest2 data1rata2TTest1 data2rata1TTest1 data2rata3TTest1 data3rata4TTest1开发者_JAVA技巧
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