FAILED: SemanticException [Error 10294]: Attempt to do update or delete using transaction manager that does not support these operations. hive> update userdb.student set name=wanggang where id = 1008; FAILED: SemanticException [Error 10294]: Attempt to do update or delete using transaction manager...
7)表属性。Hive允许用户为数据表增加任意表属性,每个表属性以“key/value”的形式存在,Hive也预定了一些表属性,比如: TBLPROPERTIES("hbase.table.name"="table_name") : 用于Hive与HBase集成,表示该Hive表对应的HBase表的table_name; TBLPROPERTIES("orc.compress"="ZLIB") : 用于标注ORC表的压缩格式,ZLIB为...
您可以省略TBLPROPERTIES欄位。 SQL DROPTABLEwikicc SQL CREATEEXTERNALTABLE`wikicc`(`country`string,`count`int)ROWFORMATSERDE'org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe'STOREDASINPUTFORMAT'org.apache.hadoop.mapred.TextInputFormat'OUTPUTFORMAT'org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFo...
create table tb_sogou_orc_snappy stored as orc tblproperties ("orc.compress"="SNAPPY") as select * from tb_sogou_source; 存储优化 避免小文件生成 Hive的存储本质时HDFS,HDFS时不利于小文件存储的,因为每个小文件会生成一条元数据信息,并且不利用MapReduce的处理,MapReduce中每个小文件会启动一个MapTask计...
DO_NOT_UPDATE_STATS workaround is buggy. * [HIVE-18792] - Allow standard compliant syntax for insert on partitioned tables * [HIVE-18866] - Semijoin and analyze: Implement a Long -> Hash64 vector fast-path * [HIVE-19027] - Make materializations invalidation cache work with multiple ...
(3)要执行Update的表中, 建表时必须指定参数('transactional' = true); 例如: create tablestudent(idint,name String)clustered by(id)into2buckets storedasorcTBLPROPERTIES('transactional'='true'); 二、修改配置文件hive-site.xml 由于我用的CDH版本,所以直接在CDH界面更改 ...
CREATE EXTERNAL TABLE employee ( name STRING, job STRING, dob STRING, id INT, salary INT) ROW FORMAT DELIMITED FIELDS TERMINATED BY ‘‘ STORED AS TEXTFILE LOCATION ‘/user/data’ TBLPROPERTIES("skip.header.line.count"="2”); 3. What is a Hive variable? What do we use it for? Hive ...
With this commit , starting Presto 0.152, we can't query System Connector's JDBC/HiveMetastore if Hive tables were created from StorageHandlers where INPUT/OUTPUT Formats may not exists. Repo: Create an external table on Hive w.r.t dynam...
Impala SQL和Hive SQL一样,主要forcus在查询。包含较少的DML,没有UPDATE或者DELETE语句。过时的数据可以被INSERT OVERWRITE或者是把分区DROP掉等。 Impala SQL通过INSERT来创建数据,通过INSERT来从其他表中批量加载数据。支持INSERT INTO和INSERT OVERWRITE。INSERT INTO是追加新的数据到现有数据,而INSERT OVERWRITE相当于是...
I am not able to delete or update in hive table . create table testTableNew(id int ,name string ) clustered by (id) into 2 buckets stored as orc TBLPROPERTIES('transactional'='true'); insert into table testTableNew values('101','syri'); select * from testtablenew; 1 102 syam...