Is the name of the database in which the table is created. database_name must specify the name of an existing database. If not specified, database_name defaults to the current database. The login for the current connection must be associated with an existing user ID in the database spec...
Creates the new table with Stretch Database enabled or disabled. For more info, see Stretch Database. Viktigt Stretch Database is deprecated in SQL Server 2022 (16.x) and Azure SQL Database. This feature will be removed in a future version of the Database Engine. Avoid using this feature...
The FLOAT and DOUBLE data types are converted into the DOUBLE data type. Other data types are converted based on the data type mappings between Hologres and Flink fields. For more information, see Data type mappings. Example: When the type normalization mode is enabled, the SMALLINT and IN...
除了位置參數調用之外,您也可以使用具名參數調用來叫用 SQL 和 Python UDF。語法複製 CREATE [OR REPLACE] [TEMPORARY] FUNCTION [IF NOT EXISTS] function_name ( [ function_parameter [, ...] ] ) { [ RETURNS data_type ] | RETURNS TABLE [ ( column_spec [, ...]) ] } [ ch...
The default value is a double quotation mark ("). If the value is the same as thequotevalue, it will be replaced with\0. location Specifies the file path on OBS. This is an OBS foreign table parameter. The data sources of multiple buckets are separated by vertical bars (|), for exam...
Delta table syntaxsql -- Create an external file format for DELIMITED (CSV/TSV) files.CREATEEXTERNALFILEFORMATfile_format_nameWITH(FORMAT_TYPE=DELIMITEDTEXT[ ,FORMAT_OPTIONS(<format_options>[ ,...n ] ) ] [ ,DATA_COMPRESSION= {'org.apache.hadoop.io.compress.GzipCodec'} ]);<format_options>...
Change the file version so that it is the same with the Instant Client version. Find your new data source inDatabase Explorer() . For more information aboutDatabase Explorer, see the correspondingreference topic. To see more schemas under your new data source node, click theN of Mbutton and...
To view and edit data of a database object, openData editor and viewerby double-clicking the object. Windows Connect by using SQL Server authentication Navigate toFile | Data Sourcesor pressCtrlAltShift0S. In theData Sources and Driversdialog, click theAddicon ( ...
If the index is on an XML column (the index is an index over XML data), the uniqueness applies to values with the specifiedpattern-expressionfor all rows of the table. Uniqueness is enforced on each value after the value has been converted to the specifiedsql-data-type. Because converting...
CREATE TABLE table_name( column1 datatype, column2 datatype, column3 datatype, ... columnN datatype, PRIMARY KEY( one or more columns ) ); 1. 2. 3. 4. 5. 6. 7. 8. 写法1: test=# create table company(id int primary key not null , name text not null , age int not null ...