CREATE [EXTERNAL] TABLE [IF NOT EXISTS] table_name [(col_name data_type [COMMENT col_comment], ...)] [COMMENT table_comment] [PARTITIONED BY (col_name data_type [COMMENT col_comment], ...)] [CLUSTERED BY (col_name, col_name, ...) [SORTED BY (col_name [ASC|DESC], ...)] ...
LOAD DATA INPATH 'hdfs文件路径' OVERWRITE INTO TABLE table_test_1 PARTITION(dt='20200822'); 1. 外部表创建,即为某路径下的文件指定为一个 Hive 表结构,这种外部表的创建,不涉及数据的移动。 外部表创建有两种方式,第一种,就是在建表的时候就指定外部表的数据依赖路径: create external table table_test...
Query partitioned tables Optimize with clustered tables Introduction Create and use clustered tables Query clustered tables External tables Introduction Types of external tables BigLake external tables BigQuery Omni Object tables External tables External table definition file Externally partitioned data Use...
1 CREATE [TEMPORARY] [EXTERNAL] TABLE [IF NOT EXISTS] [db_name.]table_name -- (Note: TEMPORARY available in Hive 0.14.0 and later) 2 [(col_name data_type [column_constraint_specification] [COMMENT col_comment], ... [constraint_specification])] 3 [COMMENT table_comment] 4 [PARTITIONE...
LOCATION'/user/hive/warehouse/person_table'; struct 使用 createtablestudent_test(idINT, info struct<name:STRING, age:INT>)ROWFORMAT DELIMITED FIELDS TERMINATEDBY','COLLECTION ITEMS TERMINATEDBY':'; hdfs 中的文件数据格式大致是:即(struct 里面对应的分隔符是 collection items terminatedby指定的分隔符)...
Hive创建表的方式(默认路径/user/hive/warehouse,也可以location指定,主要针对external表) 1、使用create命令创建一个新表,带分区 CREATE TABLE `mydb.dept`( `dept_no` int, `addr` string, `tel` string) partitioned by(date string ) ROW FORMAT DELIMITED FIELDS TERMINATED BY ',' ; ...
CREATE [EXTERNAL] TABLE [IF NOT EXISTS] [db_name.]table_name [(col_name data_type [COMMENT col_comment], ...)] [COMMENT table_comment] [PARTITIONED BY (col_name data_type [COMMENT col_comment], ...)] [CLUSTERED BY (col_name, col_name, ...) [SORTED BY (col_name [ASC|DESC...
LOCATION path [ WITH ( CREDENTIAL credential_name ) ] 儲存資料表資料之目錄的可選路徑,可能是分散式儲存體上的路徑。 path 必須是 STRING 常值。如果未指定任何位置,則會將資料表視為 managed table,且 Azure Databricks 會建立預設的資料表位置。 指定位置會使資料表成為外部資料表。 對於不在 hiv...
CREATE [EXTERNAL] TABLE [IF NOT EXISTS] table_name [(col_name data_type [COMMENT col_comment], ...)] [COMMENT table_comment] [PARTITIONED BY (col_name data_type [COMMENT col_comment], ...)] [CLUSTERED BY (col_name, col_name, ...) [SORTED BY (col_name [ASC|DESC], ...)]...
You can add rows to a table with the INSERT statement. After creating a table, you can define additional columns, partitions, and integrity constraints with the ADD clause of the ALTER TABLE statement. You can change the definition of an existing column or partition with the MODIFY clause of...