4D v16.3

Get current data source

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4D v16.3
SQL
Get current data source

Get current data source 


 

Get current data source -> Function result 
Parameter Type   Description
Function result  String in Name of current data source being used

The Get current data source command returns the name of the current data source of the application. The current data source receives the SQL queries executed within Begin SQL/End SQL structures.

When the current data source is the local 4D database, the command returns the string “;DB4D_SQL_LOCAL;”, which corresponds to the value of the SQL_INTERNAL constant ("SQL" theme).

This command lets you check the current data source, generally before executing an SQL query.



See also 

Begin SQL
End SQL
GET DATA SOURCE LIST
SQL LOGIN
SQL LOGOUT

 
PROPERTIES 

Product: 4D
Theme: SQL
Number: 990

 
HISTORY 

Created: 4D v11 SQL

 
ARTICLE USAGE

4D Language Reference ( 4D v16)
4D Language Reference ( 4D v16.1)
4D Language Reference ( 4D v16.2)
4D Language Reference ( 4D v16.3)