varchar

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MySQL - TEXT vs CHAR and VARCHAR

Reading this question, a doubt popped into my head: char and varchar can store up to 255 chars text can store up to 65k chars[详细]

2022-12-16 13:04 分类：问答
Max size of varchar(max) in SQL Server 2000

I would like to know what is the maximum size of varchar in SQL Server 2000. While I was googling somewhere it was开发者_StackOverflow written 8000 characters and somewhere it was written 8060 bytes.[详细]

2022-12-16 09:43 分类：问答
What are real performance implications of using text instead of varchar types in MySQL?

Is there/has somebody any comparison, personal experience, or guideline when to use the text type instead of a large varchar in MySQL?[详细]

2022-12-16 03:10 分类：问答
Is a varchar 2 more efficient than a varchar 255?

I\'m using Django and setting my CharField(max_length=255), even though I only intend to use about 5 characters. Is this less efficient? I\'ve read that it 开发者_高级运维doesn\'t really matter with v[详细]

2022-12-16 01:16 分类：问答
MySQL: Large VARCHAR vs. TEXT?

I\'ve got a messages table in MySQL which records messages between users. Apart from the typical ids and message types (all integer types) I need to save the actual message text as either VARCHAR or T[详细]

2022-12-15 15:19 分类：问答
VARCHAR(x) - Does setting a length turn it into "fixed-length" in MySQL performance terms?

I understand the differences between CHAR and VARCHAR, one being fixed-length and the other variable-length, and that if all fields in a row are fixed-length, a table will generally perform better.[详细]

2022-12-15 11:53 分类：问答
Linq to SQL VarChar(Max) Update is not working

I am not able to get an update to work using Linq to SQL on a VarChar(Max) field. Here is the code I use that is called from a simple DAO class:[详细]

2022-12-14 14:46 分类：问答
char column converted to varchar still inserting padding

I don\'t really know how to explain this one. I\'ve taken a table, create开发者_开发技巧d a copy of it with a specific column as varchar instead of char. Then I\'ve copied the data from one table into[详细]

2022-12-13 10:03 分类：问答
Boundless Stored Proceedure Input

I\'m passing a comma delimited list of ids to a stored procedure as a varchar(MAX). The problem is varchar caps at 8000 characters and the list could potentially be larger.[详细]

2022-12-13 09:11 分类：问答
What does varchar(-1) mean?

What is the meaning of varchar(-1) in SQL Server 2008? Is it an alternative for varchar(max)?开发者_开发知识库It\'s how to represent varchar(max) in .net SQLDBType (not explicitly stated, but length i[详细]

2022-12-11 06:18 分类：问答