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I have been backing up a MySQL database for several years with the command: mysqldump myDatabaseName -u root > myBackupFile.sql The backups have appeared to work fine... I then wanted to restore one of the backups to a different named database so I did: mysql myNewDatabaseName -u root < myBackupFile.sql I got some errors about logfile size so I stopped Mysql and removed the logfiles and set the following parameters in the my.ini file and restarted mysql. innodb_log_file_size=64M innodb_log_buffer_size=8M The restore now completes with no errors but one of the three tables which contains blobs

I'm trying to get some information about Azure blob (last modified UTC date time). This information is stored CloudBlob.Properties.LastModifiedUtc property. If I use method GetBlobReference() or GetBlockBlobReference(), the Properties of the blob are not initialized (LastModifiedUtc is DateTime.MinDate). If I use ListBlobs() the Properties are initialized correctly (LastModifiedUtc has correct value). Am I doing something wrong when using GetBlobReference function? Is there some way how to get CloudBlob instance just for one specific blob? I know I can missue ListBlobs() and filter just the

I am trying to insert a very long text string into a MySQL Blob column, but MySQL is only saving 64kB of the data. The string is 75360 characters long. I am connecting with PHP's mysql_connect() . Any ideas? Does it make a difference if it's Blob or Text. I originally had it as a Text but changed it with no affect. Because that's the maximum size of a BLOB column. You need to use MEDIUMBLOB/LONGBLOB or MEDIUMTEXT/LONGTEXT. A BLOB type in MySQL can store up to 65,534 bytes, if you try to store more than this much data MySQL will truncate the data. MEDIUMBLOB can store up to 16,777,213 bytes,

I try to upload an image to the Firebase storage from an URL (with ref().put(file) )(www.example.com/img.jpg). To do so i need a File or Blob, but whenever I try new File(url) it says "not enough arguments“… EDIT: And I actually want to upload a whole directory of files, that’s why i can’t upload them via Console Try using the fetch API . You can use it like so: fetch('https://upload.wikimedia.org/wikipedia/commons/7/77/Delete_key1.jpg') .then(res => res.blob()) // Gets the response and returns it as a blob .then(blob => { // Here's where you get access to the blob // And you can use it for

数据类型包括整型、浮点数类型和定点数类型、日期与时间类型、字符串和二进制类型。 一、整数类型 MySQL的整数类型分为5种： TINYINT、SMALLINT、MEDIUMINT、INT、BIGINT 。 不同整数类型所占用的字节数和取值范围都是不同的。如下图： 二、浮点数和定点数类型 在MySQL中，存储的小数都是使用浮点数和定点数来表示的。 浮点数的类型有2种：单精度浮点数类型（ FLOAT ）、双精度浮点类型（ DOUBLE ）。 定点数类型只有1种： DECIMAL 类型。 占用的字节数和取值范围如下图： 注意： --DECIMAL类型的取值范围与DOUBLE类型相同。 　　--注意的是DECIMAL类型的有效取值范围是由M和D决定的。 　　 --其中，M表示的是数据的长度，D表示的是小数点后的长度。 三、时间与日期类型 在数据库中存储日期和时间，MySQL提供了表示日期和时间的数据类型： YEAR、DATE、TIME、DATETIME、TIMESTAMP 如下图列举了这些MySQL中日期和时间数据类型所对应的字节数、取值范围、日期格式以及零值。 注意： 如果插入的数值不合法，系统会自动将对应的零值插入数据库中。 三、字符串和二进制类型 为了存储字符串、图片和声音等数据，MySQL提供了字符串和二进制类型如下图： 类型 字节数（大小） 用途 CHAR 0-255字节

I have about 2k of raw binary data that I need to store in a table, but don't know whether to choose the Varbinary or Blob type. I have read through the descriptions in the MySQL docs but didn't find any contract and compare descriptions. I also read that varbinary only supports up to 255 characters, but I successfully created a varbinary(2048) field, so I'm a bit confused. The binary data does not need to be indexed, nor will I need to query on it. Is there an advantage to using one type over the other from PHP? Thanks! VARBINARY is bound to 255 bytes on MySQL 5.0.2 and below, to 65kB on 5.0

how can i get the "filesize" from a string in php? I put the string in a mysql database as a blob and i need to store the size of the blob. My solution was to create a temp file and put the string into the temp file. now i can get the filesize from the "string". but that solution is not good... greetings It depends. If you have mbstring function overloading enabled, the only call that will work will be mb_strlen($string, '8bit'); . If it's not enabled, strlen($string) will work fine as well. So, you can handle both cases like this: if (function_exists('mb_strlen')) { $size = mb_strlen($string,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I want to download a pdf file for jquery ajax response. Ajax response contains pdf file data. I tried this solution . My code is given below but I always get a blank pdf. $(document).on('click', '.download-ss-btn', function () { $.ajax({ type: "POST", url: 'http://127.0.0.1:8080/utils/json/pdfGen', data: { data: JSON.stringify(jsonData) } }).done(function (data) { var blob = new Blob([data]); var link = document.createElement('a'); link.href = window.URL.createObjectURL(blob); link.download = "Sample.pdf"; link.click(); }); }); 回答1: jQuery