hbTableDescription (Type of variable)

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Properties specific to the description of hbTableDescription variables
WLanguage functions that use the hbTableDescription type

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hbTableDescription (Type of variable)

In french: hbDescriptionTable

The hbTableDescription type is used to define and find out the characteristics of a HBase table. The characteristics of this HBase table can be defined and modified by several WLanguage properties.

Remark: See Declaring a variable for more details on the declaration of this type of variable and the use of WLanguage properties.

Example

// Connection
Connection is hbConnection
Connection..Server = "MyServer"
// Retrieve the description of the table
TableDesc is hbTableDescription = hbGetTableDescription(Connection, "blog")
// Display the name of the table
Trace("table: " + TableDesc..Name)
// Display the description of columns
FOR EACH ColDesc OF TableDesc..Column
Trace(TAB + "column: " + ColDesc..Name)
Trace(TAB + TAB + "attribute: ")
FOR EACH AttributeVal, AttributeName of ColDesc..Attribute
Trace(TAB + TAB + AttributeName + " = " + AttributeVal)
END
END

Remarks

Properties specific to the description of hbTableDescription variables

The following properties can be used to handle a HBase table:

Property name	Type used	Effect

Attribute	Array of Character strings	Associative array containing the names of attributes and the values of each attribute. These names and values are specific to HBase and they are reserved for an advanced use. See the HBase documentation for more details.
Column	Array of hbColumnDescription	Description of columns.
Name	Character string	Name of HBase table.

Remark: These properties can be handled by using one of the following syntaxes:

<Variable name>..<Property name>
<Variable name>.<Property name>

WLanguage functions that use the hbTableDescription type


Versions 21 and later hbCreateTable New in version 21 hbCreateTable hbCreateTable	Creates an HBase table or modifies the description of an HBase table.
Versions 21 and later hbGetTableDescription New in version 21 hbGetTableDescription hbGetTableDescription	Retrieves the description of a HBase table.