blob

SQLite not storing blobs containing \0 bytes

由 大憨熊 提交于 2020-01-04 15:11:35
问题 Inserting binary data into an sqlite database using C/C++ interface: // Previously: "create table tt(i integer primary key, b blob)" sqlite3 *sqliteDB; if(sqlite3_open("example.db", &sqliteDB) == 0) { // "insert" statement const char *sqlText = "insert into tt (i,b) values (?,?)"; sqlite3_stmt *preparedStatement; sqlite3_prepare_v2(sqliteDB, sqlText, (int)strlen(sqlText), &preparedStatement, 0); // add the number sqlite3_bind_int(preparedStatement, 1, 1); // add the data char myBlobData[] =

Adding image to blob (mysql) via c#

由 流过昼夜 提交于 2020-01-04 11:06:42
问题 I have made a C# application that adds images from the harddisk to a blob-field in mysql. I don't get errors and the blob-field is filled. When I check the blob-field in MySQL Workbench it says the field is not correct (it can not show the image). Whatever I do, whatever example I try, nothing seems to work. So it has no point to place any example code here, because nothing is working so far. Does anyone have a good example code that I can try? Thanks 回答1: Okay, since some people wanted some

Adding image to blob (mysql) via c#

由 荒凉一梦 提交于 2020-01-04 11:05:11
问题 I have made a C# application that adds images from the harddisk to a blob-field in mysql. I don't get errors and the blob-field is filled. When I check the blob-field in MySQL Workbench it says the field is not correct (it can not show the image). Whatever I do, whatever example I try, nothing seems to work. So it has no point to place any example code here, because nothing is working so far. Does anyone have a good example code that I can try? Thanks 回答1: Okay, since some people wanted some

What storage location, SQL Server or file system, would result in better performance in saving tiff images?

由 走远了吗. 提交于 2020-01-04 06:09:47
问题 Our system needs to store tiff images of ~3k in size. We receive ~300 images at a given time and need to quickly process them. Once ~100,000 images are received, the images are transferred off our system to another archival system or purged. I am looking for best performance in regards to the initial save of the image files. The task of transferring the images for archival is less performance critical. What storage location, SQL Server or file system, would result in better performance in

What storage location, SQL Server or file system, would result in better performance in saving tiff images?

由 时光怂恿深爱的人放手 提交于 2020-01-04 06:09:19
问题 Our system needs to store tiff images of ~3k in size. We receive ~300 images at a given time and need to quickly process them. Once ~100,000 images are received, the images are transferred off our system to another archival system or purged. I am looking for best performance in regards to the initial save of the image files. The task of transferring the images for archival is less performance critical. What storage location, SQL Server or file system, would result in better performance in

Hibernate + Informix + Blob + byte array

由 ◇◆丶佛笑我妖孽 提交于 2020-01-04 05:06:13
问题 I have troubles saving a byte array to my Informix database, I'll show you how I'm trying: In Fichero.java among other things I have this: @Column(name="fichero", columnDefinition="blob") private byte[] contenido; I had to do that way because I can't get Informix+Hibernate to accept @Lob annotation (yes, I tried that extending Hibernate's dialect workaround but it doesn't work for me) Then I read a file and convert it to a bytearray this way: FileManager.java private byte[] fromFile2ByteArray

Export SQL Azure db to blob - Start-AzureSqlDatabaseExport : Cannot convert AzureStorageContainer to AzureStorageContainer

由 不想你离开。 提交于 2020-01-04 04:55:31
问题 I am using this code found on stack , and all connections are correct. Import-Module Azure Import-Module Azure.Storage Get-AzureRmSubscription –SubscriptionName “Production” | Select-AzureRmSubscription # Username for Azure SQL Database server $ServerLogin = "username" # Password for Azure SQL Database server $serverPassword = ConvertTo-SecureString "abcd" -AsPlainText -Force # Establish credentials for Azure SQL Database Server $ServerCredential = new-object System.Management.Automation

Display BLOB data PHP?

由 ￣綄美尐妖づ 提交于 2020-01-04 04:20:07
问题 How would I display BLOB data with PHP? I've entered the BLOB into the DB, but how would I retrieve it? Any examples would be great. 回答1: Simple example: $blob_data = "something you've got from BLOB field"; header('Content-type: image/jpeg'); // e.g. if it's JPEG image echo $blob_data; 回答2: I considered voting to close this a a duplicate, but the title is pretty good, and looking through other questions, I don't find a complete answer to a general question. These sorts of questions betray an

azcopy linux 安装使用说明

由 纵然是瞬间 提交于 2020-01-04 03:24:49
azcopy 有过一次大的命令行接口更新： 7.x的版本 命令形如： azcopy --source .... --destination ... 10.x的版本 命令形如：azcopy copy 10.x的版本有子命令 安装说明： wget -O azcopy.tar.gz https://aka.ms/downloadazcopy-v10-linux tar -xf azcopy.tar.gz 加入系统路径： vi ~/.bashrc export PATH=$PATH:/home/fr-renjie.wei/azcopy_linux_amd64_10.3.3 source ~/.bashrc 上传文件到blob（SAS）的示例： 7.x azcopy --source "/path" --destination https://name.blob.core.chinacloudapi.cn/container \ --dest-sas "?st=.....&se=2025-01-03T02%3A29%3A00Z&sp=racwl&sv=2018-03-28&sr=c&sig=....." --include "*.html" 10.x azcopy copy /path/*.html "https://....blob.core.chinacloudapi.cn

Determine size in kb of a BLOB column in DB2

由 ♀尐吖头ヾ 提交于 2020-01-03 16:47:32
问题 File table contains - File_Id and File_data(BLOB) how can I know the size of the binary file stored in File_data column. length function gives the length of file but how to know the size in KB. 回答1: This gives a number in bytes, devide it by 1024 to get size in KB. Select sum(BIGINT(length(blob_column))) from table; 回答2: BLOB Length is not quite the same as size . You first need to answer NO to all of these questions for it to be the file size: Is the BLOB column declared as COMPACT? Is the
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