CREATETABLEtest(c1INTPRIMARYKEY,c2VARCHAR(50))REPLICA_NUM=3,PRIMARY_ZONE='zone1'; 创建一个复制表。 CREATETABLEitem(i_idINT,i_nameVARCHAR(24),i_priceDECIMAL(5,2),i_dataVARCHAR(50),i_im_idINT,PRIMARYKEY(i_id))COMPRESSFORQUERY pctfree=0BLOCK_SIZE=16384DUPLICATE_SCOPE='cluster'LOCALITY='...
Transact-SQL 语法约定 语法 syntaxsql复制 -- Create a new table.CREATETABLE{database_name.schema_name.table_name|schema_name.table_name|table_name} ( {column_name<data_type>[<column_options>] } [ ,...n ] ) [WITH(<table_option>[ ,...n ] ) ] [;]<column_options>::=[COLLATEWindo...
首先建一个类,继承org.hibernate.dialect.DB2Dialect,该类的内容如下: import java.sql.Types; import org.hibernate.Hibernate; import org.hibernate.dialect.DB2Dialect; public class PmDb2Dialect extends DB2Dialect { public PmDb2Dialect() { super(); registerHibernateType(Types.DECIMAL, Hibernate.BIG_DECIM...
When working with SQL Server, sometimes there is a need to create new tables to accomplish a task. Most of the data you need probably already exists in the database, but you may need to create a new table to import data or create a new table as a subset of other tables. In this a...
Here we see "varchar, int, decimal, etc." these are the datatype. In SQL, datatype defines the type of data that column can hold (e.g. varchar, int, decimal, date, etc.). We create Id as the "Primary key". It is used for identifying each record of a table uniquely. ...
TABLE_QUALIFIER TABLE_OWNER TABLE_NAME COLUMN_NAME DATA_TYPE TYPE_NAME PRECISION LENGTH SCALE RADIX NULLABLE REMARKS COLUMN_DEF SQL_DATA_TYPE SQL_DATETIME_SUB CHAR_OCTET_LENGTH ORDINAL_POSITION IS_NULLABLE SS_DATA_TYPE TestDB dbo CUSTOMERS ID 4 int 10 4 0 10 0 NULL NULL 4 NULL NULL 1 NO...
Access Code - DELETE Statement with DISTINCTROW and T-SQL Access Now() vs. T-SQL GETDATE() ? ADD and SUBTRACT depending on the condition is CASE STATEMENT ADD COLUMN to variable table? Add prefix in data column Add Time in SQL HH:MM:SS to another HH:MM:SS Adding a column to a ...
syntaxsql 复制 CREATE [ OR ALTER ] FUNCTION [ schema_name. ] function_name ( { @parameter_name [ AS ] [ type_schema_name. ] parameter_data_type [ NULL ] [ = default ] } [ , ...n ] ) RETURNS TABLE <clr_table_type_definition> [ WITH <clr_function_option> [ , ...n ] ...
This name should be unique among all the Database_Directory names in the SQL Server instance. Uniqueness comparison is case-insensitive, regardless of SQL Server collation settings. This option should be set before you create a FileTable in this database. The following options are allowable only...
(DWS) SQL语法格式说明 与PostgreSQL的差异 关键字 数据类型 常量与宏 函数和操作符 表达式 类型转换 全文检索 系统操作 事务管理 DDL语法 DDL语法一览表 ALTER DATABASE ALTER FOREIGN TABLE (GDS导入导出) ALTER FOREIGN TABLE (For HDFS or OBS) ALTER FUNCTION ALTER GROUP ALTER INDEX ALTER LARGE OBJECT ...