varbinary

How to get UUID generated by MySQL into a C# variable

由 一曲冷凌霜 提交于 2019-12-11 08:17:19
问题 Here is the query: string query = @"INSERT INTO session (PK_Id, user_id, login_time, machine_ip, machine_fingerprint) VALUES (UUID(), @UId, @LogInTime, @MIp, @MFingerPrint); "; Now I need this last inserted id back, which is a UUID generated by MySQL. As far as I read there is no select_last_insert_id() function for UUIDs!! And I read for php you could assign UUID() function first to a variable and then return that value. But how to go about that in C#? Something like this, but not exactly:

find a result from a .doc type that store in a varbinary(max) column

由 坚强是说给别人听的谎言 提交于 2019-12-11 06:37:08
问题 i want to write a query with Full-Text-Search on a column with varbinary(max) type that stored a .doc/.docx(MS-Word) file. my query must returns records that contain a word in stored file. is this possible? if yes,how?(please write an example) if yes,can we write that for other language(e.g Arabic,Persian or a UniCode characters)? thank you beforehand. 回答1: What you're looking for is fulltext indexing, which has been greatly improved in SQL Server 2008. For an introduction, I would recommend

SQL Query to store text data in a Varbinary(max)

由 跟風遠走 提交于 2019-12-10 17:22:08
问题 Is there a way to make a varbinary accept text data in SQL Server? Here is my situation. I have a fairly large amount of XML that I plan on storing in a "zipped" format. (This means a Varbinary.) However, when I am debugging, I want to be able to flip a configuration switch and store in plain text so I can troubleshoot from the database (ie no client app to un-zip needed). Is it possible to insert normal text in to a varbinary(max)? 回答1: Is it possible to insert normal text in to a varbinary

SQL Server Varbinary(max): select a subset of bytes from the varbinary field

由 独自空忆成欢 提交于 2019-12-10 02:11:41
问题 What is the most efficient way of reading just part of the binary data from a varbinary(MAX) field (not using FileStreams) in SQL Server 2008? When writing data to the column the VarBinary.Write() function is available in T-SQL, allowing bytes to be written to the field incrementally, but there doesn't appear to be a similar function available for reading data. I know of the DataReader.GetBytes() method in .Net which will select just the bytes you ask for, but does this carry a performance

Handling hashed passwords stored as varbinary in SQL Server and classic ASP

由 …衆ロ難τιáo~ 提交于 2019-12-09 21:57:47
问题 All, Sorry in advance - I'm a novice in most of the topics below (SQL, ASP). Anyway... I've got a pretty simple web app that requires users to log in with a user name and password. The front end creates a salted SHA1 hash of the password, and posts it (along with the user's name) to an ASP page. That ASP page takes the data, calls a stored procedure in the SQL Server database, and passes the users name and hashed password; the stored procedure writes the info to the 'users' table. The

How to store varbinary in MySQL?

由 时光总嘲笑我的痴心妄想 提交于 2019-12-09 03:06:26
问题 Just a quick question.. Out of two options mentioned below, how to store to varbinary column in MySQL? public_key = '67498930589635764678356756719' or public_key = 67498930589635764678356756719 Will the second method work? I am into an emergency moment working on a production server and didn't want to experiment on it. Thank you for any help. 回答1: Printable data can be inserted using quotes. Non-printable data can be inserted using hexadecimal values. I.e.: INSERT INTO Table(VarBinaryColumn)

Update varbinary(MAX) column

由 。_饼干妹妹 提交于 2019-12-08 04:43:18
问题 I am trying to update a varbinary(MAX) column, it actually stores saved data of a Word file that an user uploaded from a website. What happened was an user uploaded a wrong file so I need to update the column to reflect a correct file. What I did was that in a testing machine I uploaded the correct file so it was saved to the database and I can see and copy the "varbinary(MAX) value" and use it to replace the wrong one The value looks like: 0x504B03041400060008000........FBB9 I tried a

varbinary to varchar w/o master.dbo.fn_varbintohexstr

由 人盡茶涼 提交于 2019-12-07 10:29:16
问题 Is there any way to convert varbinary to ASCII varchar string (base64, md5, sha1 - no matter) without master.dbo.fn_varbintohexstr function on MS SQL Server 2005? Because it can't be used inside of computed column. CONVERT and CAST return non-ASCII strings. Thank you, Denis. 回答1: For md5 and sha1 you can use hashbytes. To get base64 you can create a udf that does the conversion and use that in your computed column. Function BinToBase64: create function BinToBase64(@Bin varbinary(max)) returns

Operand Type Clash

由 耗尽温柔 提交于 2019-12-06 19:51:58
问题 I have a long stored procedure and when I execute the procedure I get the following error: Msg 206, Level 16, State 2, Line 1 Operand type clash: varchar(max) is incompatible with sql_variant So to trouble shoot I have printed satetement where the problem is and the code is: SELECT 'Name' , 7 , CASE WHEN 'varchar' = 'varbinary' THEN REPLACE(UPPER(sys.fn_sqlvarbasetostr([Name])), 'X', 'x') ELSE CONVERT(VARCHAR(4000), [Name]) END , 'varchar' FROM ref.dbo.datatables WHERE id = 12 ORDER BY [ID]

Can I set 2 MB for maximum size of varbinary?

由 ╄→尐↘猪︶ㄣ 提交于 2019-12-05 18:24:50
As far as I know the maximum value you can define "manually" is 8000 -> varbinary(8000) which, as far as I know, means 8000 bytes -> 7,8125 KByte . Is it possible to set max to 2 MB ? Something ike varbinary(2097152) , or shall I set it to varbinary(max) and check the file size through my upload/sql insert script? You could use a CHECK CONSTRAINT to ensure the size is below 2MB: CREATE TABLE dbo.T ( ID INT IDENTITY, VarB VARBINARY(MAX) ); ALTER TABLE dbo.T ADD CONSTRAINT CHK_T_VarB__2MB CHECK (DATALENGTH(VarB) <= 2097152); Then when trying to insert something larger than 2 MB: DECLARE @B
订阅 varbinary