Character set results null





If you specify a character set 18th engineer brigade patch that is valid but not permitted as a client character set, the server returns an error: shell mysql -default-character-setucs (42000 Variable 'character_set_client' can't be set to the value of 'ucs2' If you specify a character set that the client.
Section 10.6, Error Message Character Set.
Error: Unknown character set: 'cp1251 query: create table fca_languages (ID int(11) NOT null auto_increment, Code varchar(255) NOT null default Direction enum ltr rtl NOT null default 'ltr Key varchar(255) NOT null default Status NOT null default 'approval Date_format varchar(100) NOT null default primary KEY (ID.These session system variable values are initialized at connect time, but can be changed within the session.These variables can be changed individually using SET statements, but two more convenient statements affect the connection-related character set sytem variables as a group: SET names ' charset_name ' collate ' collation_name ' SET names indicates what character set the client will use to send.In effect, the server performs the equivalent of a SET names operation.But unfortunately I can not give it up because I have a good account.Connection Character Set and Collation System Variables.Some of these have been mentioned in game of thrones all episodes earlier sections: Additional character set and collation system variables are involved in handling traffic for the connection between a client and the server.Advertisements, previous Page, next Page, syntax bool mysqli_set_charset ( mysqli link, string charset ).Conversion may be lossy for characters that are not in both character sets.If the client additionally wants a collation of utf8mb4_0900_ai_ci, it cannot achieve that because the server does not recognize that collation.
It is unnecessary to set character_set_connection explicitly.
Reply With" March 23, 2012, 11:02 AM #4 Hello Dmitry, Why not make a script based on UTF8 charset?
For example, utf8 and utf-8 map to utf8mb4, and ucs2 is not supported as a connection character set, so it maps to the compiled-in default.Suppose that the server is configured to use latin1 and latin1_swedish_ci as its defaults, and that it does not recognize gb18030 as a valid character set.A client that specifies -default-character-setutf8mb4 is able to connect to the server.This occurs because the server cannot satisfy the client character set request and falls back to its defaults.Connect-Time Error Handling Some character sets cannot be used as the client character set; see Impermissible Client Character Sets.To determine this, the server uses the character_set_connection and collation_connection system variables: What character set should the server translate query results to before shipping them back to the client?On which side I can solve question?Mysql show session variables like 'collation_connection Variable_name Value collation_connection latin1_swedish_ci You can see that the connection system variables have been set to reflect a character set and collation of latin1 and latin1_swedish_ci.This occurs, for example, when a MySQL.0 client wants to connect to a MySQL.7 server using utf8mb4 as the client character set.It is unnecessary to set that collation explicitly.

The same problem occurs in a more subtle context: When the client tells the server to use a character set that the server recognizes, but the default collation for that character set on the client side is not known on the server side.


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