This is the legacy 4D documentation web site. Documentations are progressively being moved to developer.4d.com
- 4D Language Reference
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- SQL
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Overview of SQL Commands
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On SQL Authentication Database Method
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Begin SQL
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End SQL
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Is field value Null
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QUERY BY SQL
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SET FIELD VALUE NULL
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SQL CANCEL LOAD
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SQL End selection
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SQL EXECUTE
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SQL EXECUTE SCRIPT
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SQL EXPORT DATABASE
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SQL EXPORT SELECTION
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SQL Get current data source
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SQL GET DATA SOURCE LIST
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SQL GET LAST ERROR
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SQL GET OPTION
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SQL LOAD RECORD
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SQL LOGIN
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SQL LOGOUT
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SQL SET OPTION
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SQL SET PARAMETER
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START SQL SERVER
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STOP SQL SERVER
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START SQL SERVER
| START SQL SERVER | ||||||||
| Does not require any parameters | ||||||||
The START SQL SERVER command launches the integrated SQL server in the 4D application where it has been executed. Once launched, the SQL server can respond to external SQL queries.
Note: This command does not affect the internal functioning of the 4D SQL kernel. The SQL kernal is always available for internal queries.
If the SQL server has been launched correctly, the OK system variable is set to 1. Otherwise, it is set to 0.
Product: 4D
Theme: SQL
Number:
962
Created: 4D v11 SQL
4D Language Reference ( 4D v20)
4D Language Reference ( 4D v20.1)
4D Language Reference ( 4D v20.2)
4D Language Reference ( 4D v20.3)
4D Language Reference ( 4D v20.4)
4D Language Reference ( 4D v20.5)
4D Language Reference ( 4D v20.6)
