createtablet1(c1intprimarykey,c2int,c3int,indexi1(c2)); 创建Hash 分区,分区数为 8 的表。 createtablet1(c1intprimarykey,c2int)partitionbyhash(c1)partitions8; 创建一级分区为 Range 分区,二级分区为 Key 分区的表。 createtablet1(c1int,c2int,c3int)partitionbyrange(c1)subpartitionbykey(c2,c3)su...
_table_name [ ( ref_column ) ] [ ON DELETE { NO ACTION | CASCADE } ] [ ON UPDATE { NO ACTION } ] [ NOT FOR REPLICATION ] | CHECK [ NOT FOR REPLICATION ] ( logical_expression ) ] <column_set_definition> ::= column_set_name XML COLUMN_SET FOR ALL_SPARSE_COLUMNS <table_...
table_name:表名,必须在本实例范围内唯一。 primary_key:主键信息,主键的中ColumnSchema的个数应在1~4个范围内,primary_key中的ColumnSchema的name应符合命名规则和数据类型,type取值只能为STRING、INTEGER或者BINARY。关于命名规则和数据类型的更多信息,请参见命名规则和数据类型。 defined_Columns:预定义列信息。如果...
[ WITH [ NO ] DATA ] 指定是否在创建表时自动同步源表数据,含义如下。 WITH DATA:自动同步数据 WITH NO DATA:不自动同步数据。 如果不指定,默认为WITH DATA。 使用示例 将非分区表复制成一张新的非分区表。 准备一张源表和数据。 BEGIN; CREATE TABLE public.src_table ( "a" int8 NOT NULL, "b" ...
DROPTABLEIFEXISTScustomer_address;CREATETABLEcustomer_address(ca_address_skINTEGERNOTNULL,ca_address_idCHARACTER(16)NOTNULL,ca_street_numberCHARACTER(10),ca_street_nameCHARACTERvarying(60),ca_street_typeCHARACTER(15),ca_suite_numberCHARACTER(10))WITH(ORIENTATION=COLUMN,COMPRESSION=HIGH,COLVERSION=2.0)DI...
_table_name [ ( ref_column ) ] [ ON DELETE { NO ACTION | CASCADE } ] [ ON UPDATE { NO ACTION } ] [ NOT FOR REPLICATION ] | CHECK [ NOT FOR REPLICATION ] ( logical_expression ) ] <column_set_definition> ::= column_set_name XML COLUMN_SET FOR ALL_SPARSE_COLUMNS <table_...
DataSets not compiling anymore! DataTable DateTime Column Sort DataTable foreach loop - continue to next row? Datatable Select by column index? DataTable.Compute - selecting NULL values in filter dataTable.select.orderby method Dataview rowfilter with multiple columns not filtering properly ...
Then you will see the dialog to create a new table. So, let's create a new table calledherowith the following columns: id: anINTEGERthat will be theprimary key(checkPK✅). name: aTEXT, it should beNOT NULL(checkNN✅), so, it should always have a value. ...
[ WITH ( <table_option> [ ,...n ] ) ] [ ; ] <column_definition> ::= column_name <data_type> [ FILESTREAM ] [ COLLATE collation_name ] [ NULL | NOT NULL ] [ [ CONSTRAINT constraint_name ] DEFAULT constant_expression ] | [ IDENTITY [ ( seed ,increment ) ] [ NOT FOR ...
[AS select_statement]; -- (Note: Available in Hive 0.5.0 and later; not supported for external tables) CREATE [TEMPORARY] [EXTERNAL] TABLE [IF NOT EXISTS] [db_name.]table_name LIKE existing_table_or_view_name [LOCATION hdfs_path]; ...