MySQL #1170 error (42000) blob/Text Column Used in key specification without a key length
Here is my solution to translating foreign websites.
When creating a new table or altering an existing table with primary key, unique constraints and
This article mainly introduces how to parse Blob objects in HTML5. It is the basic knowledge in HTML5 beginners, you can refer to Blob objects in HTML5 and BLOB types in MYSQL. The BLOB type in MYSQL is just a binary data container. In addition to
The basic concept of Azure Blob Storage is described in the article "Azure Basics: Blob Storage" and shows how to do basic operations through C # code. Recently I need to do something similar in Linux, so I decided to use Azure Storage SDK for
Install the Azure Storage SDK for PythonThe simplest way is to execute the following command directly on a machine that has Python and Pip installed:Pip Install Azure-storageAfter the installation is complete, view the installed version via the PIP
Requirement: serialize the object and save it to the database. The database design uses the BLOB data type, the Oracle database, and Hibernate to save the Blob big data. ibatis queries the Blob big data.
Some codes are presented as follows:
1.
A user problem today
User Environment: Oracle 11.1.0.6 arcsde9.3.1
Problem description: The user's data contains the Blob field. It is estimated that the data stored in this blob is large or small. If you copy and paste the data through arccatalog
Table creation:Create Table blobimg (ID int primary key, contents BLOB );1. dedicated access to blob storage:1) JDBC examples that are most common in OracleGenerally, the Blob column is first locked Through select... for update, then the Blob value
[Mysql] storage and optimization of text blob large fields in InnoDB Storage engine, innodbblob
Recently, during database optimization, we can see that some tables use text or blob fields in design, and the storage space of a single table has
Address: http://fengwen.iteye.com/blog/580323
Problem: a xx Settlement System requires transaction statistics from another system, which stores and exports images for viewing.
The Slice directly exists in the database as blob. I thought it was a
A blob is a type of MySQL data, called a binary large object. As its name it is used to store a large number of string data like MySQL binary and varbinary types.
MySQL BLOB classification
MySQL blob type maximum storage length (bytes)
Tinyblob (1
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