Binary Column
what is binary column attribute for and how may i use it?
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Binary Column Types / Hashed Passwords
I'm building an asp.net application using MySQL as the database. I've created a table to store usernames and passwords. During user creation and authentication - i'm presenting the db with a hashed password value. When a hashed password is stored in a db - how should it appear in the table? In the MySQL table I'm using to store username and passwords, it appears as system.byte[]. The data type is defined as varchar(16), binary. The field is not behaving as it should during authentication - as long at I enter a valid username, the system authenticates me despite a correct or incorrect password value. Can anyone help me to define the appropriate column type? My application works fine w/ MS SQL but fails w/ MySql. In MS SQL the field is described as:[PWD] [binary] (16) NULL
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Repost:Binary Column Types / Hashed Passwords
I'm building an asp.net application using MySQL as the database. I've created a table to store usernames and passwords. During user creation and authentication - i'm presenting the db with a hashed password value. When a hashed password is stored in a db - how should it appear in the table? In the MySQL table I'm using to store username and passwords, it appears as system.byte[]. The data type is defined as varchar(16), binary. The field is not behaving as it should during authentication - as long at I enter a valid username, the system authenticates me despite a correct or incorrect password value. Can anyone help me to define the appropriate column type? My application works fine w/ MS SQL but fails w/ MySql. In MS SQL the field is described as:[PWD] [binary] (16) NULL
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How To Save Binary Data Into A Binary Field
I want to save some binary data into MYSQL. dim s as string s=chr(0)&chr(1) chr(3) & chr(6) & chr(7) conn.execute "INSERT INTO test values ('" & s & "')" The field in the table test is binary. The odbc returns an error but using the query browser the query ends good. Any idea?
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Key1 Without Binary And Key2 With Binary
I have two search keyes, key1 and key2. The following is where clause. where say like '%#key1#%' and say like binary '%#key2#%' I have to use binary for key2 like the above. Now I like to make the following where clause. say like '%#key1#%#key2#%' The where clause above will retrieve all records which has #key1# and #key2# in that order. My problem is in the use of binary, i.e I have to use binary for key2. I can make it like the following for using binary. say like binary '%#key1#%#key2#%' But the code above makes not only key2 but also key1 bianry. Key1 doesn't need bianry but key2 needs bianry. How can I make the where clause key1 without binary and key2 with binary? The following would-be code doesn't work correctly, but it'll show what I want. woudl-be code say like '%#key1(non-binary)#%#key2(binary)#%'
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Can I: Export Column, Optimize & Fill New Column With Value To Original Column?
I have a database with over 40,000 rows and 28 columns (learned how to import large files by changing php.ini!). Using Excel, I am able to: (A) copy and paste original column (e.g., SIZE_TEXT) (B) ALONG with each records' UNIQUE_KEY, (C) sort SIZE_TEXT column, (D) filter for unique values, (E) fill new column with its SIZE_TEXT__KEY, and then (F) import the new SIZE_TEXT_KEY value into the database by creating a new column or pasting over the columns original value. However, I think this can be performed, with less potential for error, using phpMyAdmin, but I haven't found anything demonstrating how to perform these actions. I searched the terms optimization and normalization. I am hoping one can use phpMyAdmin to: 1) create a new table with export column of the original table (SIZE_TEXT_TABLE), 2) sort new table for duplicates and show only unique values, then 3) import the column results into each Unique Records original column (SIZE_TEXT) 4) link new column values to Foreign Key (the Parent Table's SIZE_TEXT_KEY)
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Binary Log
I was wondering if it was possible for MySQL to produce a binary log that can be used for Point in Time Recovery without the actual replication process of duplicating everything in another database.
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Can We Use Binary?
I had little time so didn't do much research .My apology for that. I want to create column "present" in my table employee.Further I want to use binary datatype(1,0) for field "present" .0 being default.Is it doable?If yes then how? create table employee(present binary default 0)
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Binary Log?
I need some advice about how long I must keep those long binary logs created by the RDBMS, I read the doc and I understand that those logs are needed in the case of db recovery, since they have all data involved in updates and deletes, they tend to grow to really huge sizes. I don't use the replication features, so... I think is safe to delete old log files, but how old?, is safe to delete the logs files of the last month or something like that?
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MySQLD Binary Log
We've been using MySQLD for a few years now quite happily. It's amazing how well it performs. However, I have a minor issue, and I'm not sure how to deal with it. I've scoured the manual, searched list archives, the web, etc., and am coming up empty. Somehow, the server is recording the Binary log in the data directory. Each of these log files takes up a gigabyte. This would be all well and good if we were using the server in as a master in a replication setup, but we are not. It WAS formerly acting as a master in a replication environment, but we've long since made it the only SQL server on our network. We've removed (commented) all the lines in my.cnf that deal with replication, and the log-bin is one of these lines. To clarify: the log-bin line in the my.cnf file IS commented with a hash-mark (#). The server has been restarted since this change, and "SHOW MASTER STATUS" returns an empty set of data (only showing the field names.) the SQL command RESET MASTER does nothing. It does not delete the hostname-bin.### files. the mysqld commandline parameters follow: /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --pid-file=/var/lib/mysql/inferno.pid --skip-locking We're running version 3.23.41 for pc-linux-gnu on i686, running on SuSE Linux 7.1, kernel 2.4.18 #2 SMP on a Dual-Processor Pentium II 450MHz server.
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Thanks for the previous rec regarding 4.xx, Now I want to run a second MySQL server and leave the existing (and working) 3.23...Configuring isn't going to be the issue, but according to the RPM output, the package isn't relocatable from /var/mysql blah blah - which is where my existing installation is.I guess I need to download and make the installation manually to force it to a totally separate directory then right?
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Ib* Binary Files
I notice in the mysql/data directory the following binary files: ib_arch_log_0000000000 ib_logfile0 ib_logfile1 ibdata1 Some are rather large. I can't seem to find any explanation in the documentation. What are they? What needs to be done with them?
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Binary Upload
i like to upload blob-data to MySQl database with this command: insert into files (f_name, f_binary, f_date, t_id) values ('musik2', LOAD_FILE('C:/Dokumente und Einstellungen/wolfgang.RE-MSQDW1NI9MBG/data/Neuer Ordner/a.mp3'), 2004-12-12, 1) MySQl states Error: 1048 Column 'f_binary' can not be null As I wasn't able to figure out my mistake in the commmand I created a txt-file a a.txt and doing the same command with this file - and this works.
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Continuous Binary Log
what would work even better for me is if the relay file were continuously updated without actually performing the database changes to the slave. This way my backup server does not need to be bogged down with database operations and can do other things or not require as much hardware to keep up with the master. I tried SLAVE STOP; but noticed that this prevents the relay file from being updated at all. (SLAVE START; resumed the updating of the relay file) So SLAVE STOP; won't work.
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TRUE Binary
I have a Status column, stating whether a particular record is active or not. Right now, the way I have it is set that the column is an ENUM('Y','N')... The bad thing is when I try to access the database from some other programming language, like C++, my "binary" column isn't really such... It is not a TRUE binary column. Does MySQL have any kind of TRUE binary? I mean, right now i've got a couple of workarounds, but they're not as effficient, or as pretty as i'd like them to be
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Binary Attribute
I have inherited a database that has one of the fields created as varchar(16) binary. It is actually a password field. So I needed to update a password for a particular user to do a test. I just did an update: update database set password='password' where login_name='desireduser' The database updated the password but I could read the word: "password". The other passwords are in binary so I can't read them as English. So I thought of the password() function. I then tried another update: update database set password=password('password') where login_name='desireduser' Again the password was not put in binary form; I could read the actual word. The problem here is that the user can't log in when i do this. Yes that is a web app issue. But it is related to this issue that I am reporting here. So my question is how do you get a string or integer to appear as binary if you can't just use an update statement?
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My environment: 2 servers, 1 shared storage, redhat cluster keeps mysql running on one node at a time. Not using replication or Mysql Cluster. My need: I'd like to move my binary logs to the local device of whatever server is the primary server. My problem: If I move my binary logs to the local disk (from the share, where they are now), what happens during a failover? If db01 fails to db02, there will be no binary logs waiting for it. Now, I THINK those binary logs will just start up again, but I can't be sure. Lets say they do just start populating, brand new: what happens if i fail back? When I fail back the database will suddenly have old binary logs. What's a sys-admin to do?
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Binary Log Index File
I'm trying to write a script to weekly remove MySQL logs, the general, error and binary log files. Following the MySQL documentation, I've written a script that moves all current log files, then executes mysqladmin flush-logs. My question is this on the binary logs (bin.001, bin.002, etc.): once these are removed and flush logs is executed, the binary log files start over with bin.001. HOWEVER, the binary index file does not appear affected by the flush-logs command; ie, if I'm up to bin.003 in the binary.index file, remove the files and execute the flush logs command, I'm back to a file names bin.001, although the binary.index file still has entries for bin.001, bin.002, bin.003, etc. How does the binary index file stay current when you remove the logs?? -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql?unsub=...sie.nctu.edu.tw
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AIX 5.1 Binary From UCLA Site?
I wonder if anyone would share your experience with the binary download from the UCLA library? I am thinking of an AIX 5.1 box (32 bit) first. If things go well, and if manager allows, I'd like to try another box (AIX 5.1, 64 bit). It'd be nice to hear a success story before taking the jump. Also, is UCLA's binary the same as the one at mysql.com site? If different, in what way? Is one of them 64bit and the other 3 2bit? Or are they both 32 or 64 bit?
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Loading Binary Data
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Enabling Binary Log In Mysql 5.0.45
I wrote log_bin=[filename] in my.inf and restarted ,eventhough if checked at commandprompt through show variables statement, its showing log_bin =off.I tried through mysql adminstrator stratup variables also. But no change at all.can anyone tell me how to enable binary logs and further process for replication.Awaiting for your valuble replies.
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"Can I store images in MySQL binary fields?" And yes you can, but for most purposes that's a performance hit due to the quantity of queries that need to be made when fetching the 10 images displayed on your site. Storage of e-books and other documents in a database is also viable alternative for keeping them outside the webroot. However, I can't really think of a substantial difference between that and storing just the location of the file in the database, unless keeping it out the FTP-able area is an issue for some reason. Are there other useful applications you can think of? And while I'm at it: Is there a noteworthy difference, or a difference at all, when fetching a single file either from MySQL or from the filesystem?
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