这将显示出所有已经在Hive中创建的表的列表。 步骤4 - 使用ALTER TABLE命令转换字符集 要使用ALTER TABLE命令来转换字符集,你需要知道要转换的表的名称。假设表的名称为tablename,你可以使用以下命令来转换字符集为utf8: hive>ALTERTABLEtablenameSETSERDEPROPERTIES('serialization.encoding'='UTF-8'); 1. 这个命...
[Known issues] ALTER TABLE ${table} CONVERT TO CHARACTER SET utf8 4646 io except January 26, 2010 11:57AM Re: [Known issues] ALTER TABLE ${table} CONVERT TO CHARACTER SET utf8 2125 Rick James February 07, 2010 11:49AM Sorry, you can't reply to this topic. It has been cl...
Bug #31291 ALTER TABLE CONVERT TO CHARACTER SET does not change some data types Submitted: 29 Sep 2007 3:48Modified: 28 Jan 2009 22:00 Reporter: Kolbe Kegel Email Updates: Status: Closed Impact on me: None Category: MySQL Server: CharsetsSeverity: S2 (Serious) Version: 5.0.44-sp1OS...
13000..13009 create table t1 (id int primary key) engine = innodb default charset gbk; alter table t1 CONVERT TO CHARACTER SET UTF8, ALGORITHM = INPLACE; show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `id` int(11) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DE...
1. ALTER TABLE tbl_name CONVERT TO CHARACTER SET charset_name; 1. 该语句还更改所有字符列的排序规则。如果不指定COLLATE子句来指示要使用哪个排序规则,则语句将对字符集使用默认排序规则。如果此排序规则不适用于预期的表用途(例如,如果它将从区分大小写的排序规则更改为不区分大小写的排序规则),请显式指定排序...
SET {VISIBLE | INVISIBLE} | DROP DEFAULT } | ALTER INDEX index_name {VISIBLE | INVISIBLE} | CHANGE [COLUMN] old_col_name new_col_name column_definition [FIRST | AFTER col_name] | [DEFAULT] CHARACTER SET [=] charset_name [COLLATE [=] collation_name] | CONVERT TO CHARACTER SET ...
ALTERTABLEtbl_name [alter_option [, alter_option] ...] alter_option: { table_options|RENAME [TO|AS] new_tbl_name|ALGORITHM [=] {DEFAULT|INSTANT|INPLACE|COPY}|[DEFAULT]CHARACTERSET[=] charset_name [COLLATE[=] collation_name]|CONVERTTOCHARACTERSETcharset_name [COLLATEcollation_name]|{DISCARD...
For more information, see CAST and CONVERT (Transact-SQL). Reducing the precision or scale of a column may cause data truncation. The data type of a column of a partitioned table cannot be changed. column_name Is the name of the column to be altered, added, or dropped. column_name ...
MoveToDropIndexOption MultiPartIdentifier MultiPartIdentifierCallTarget NamedTableReference NameFileDeclarationOption NextValueForExpression NonTransactedFileStreamAccess NullableConstraintDefinition NullIfExpression NullLiteral NullNotNull NumericLiteral OdbcConvertSpecification OdbcFunctionCall OdbcL...
MoveToDropIndexOption MultiPartIdentifier MultiPartIdentifierCallTarget NamedTableReference NameFileDeclarationOption NextValueForExpression NonTransactedFileStreamAccess NullableConstraintDefinition NullIfExpression NullLiteral NullNotNull NumericLiteral OdbcConvertSpecification OdbcFunctionCall OdbcLitera...