Search: "action column"
Action list - Log Service Documentation
can perform the following actions on Log Service resources. Each action corresponds to one or two APIs. Action Description ...
Bootstrap action - E-MapReduce Documentation
Bootstrap action is used to run your customized script before the cluster starts up Hadoop. The customized script bootstrap operation With bootstrap action, you can install many things to your cluster that are not currently supported by ...
Auto-increment function of the primary key column - Table Store Documentation
If you set a primary key column as an auto-increment column, you do not need to enter this column when primary key column, has the following features: The system architecture exclusive to Table Store and the ...
How do I add a value to a specified column? - Table Store Documentation
To increase the value of a column by 1 increment, follow these steps. row = getRow(primary_key, 'col') // Read the column value.old_value = row['col'] // Record the old value of this column.row['col'] = old_value + 1 // Calculate ...
Column alias - Log Service Documentation
In the SQL standard, the column name must be consisted of English letters, numbers, and underlines (_) and start with an English letter. If a column name (for example, User-Agent) that does not conform to the SQL standard is ...
Primary key column auto-increment - Table Store Documentation
C++ SDK supports auto increments in primary key columns. If you set a primary key column to be an auto-increment column, when you write a row of data, leave the value of this column empty, as Table Store automatically generates this value. This generated ...
How to enable column-store and compression in HybridDB for PostgreSQL? - HybridDB for PostgreSQL Documentation
enable column-store and compression, you must specify the column-store and compression options when creating the table. For example, ORIENTATION=column, COMPRESSTYPE=zlib, COMPRESSLEVEL=5, BLOCKSIZE=1048576, OIDS=false) In general, we recommend that you enable ...
Column/Partition operation - MaxCompute Documentation
;); -- -Delete the sale details of Hangzhou in December of 2013 successfully. Add column...) Note You cannot specify order for a new column. By default, a new ...
Primary key column auto-increment - Table Store Documentation
The auto-increment function of primary key column is a new feature launched by Table Store, and is available for Java SDK v4.2.0 and later versions. The auto-increment function of primary key column means that if you specify a primary ...
Column chart - Log Service Documentation
The column chart displays the numeric comparison among data types by using vertical or horizontal columns. The line chart describes the ordered data, while the column chart describes different types of data and counts the number ...