Connection CallBack Methods

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Connection CallBack Methods

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Most connection callback methods will receive at least the following 2 parameters:

Connection name, or DEFAULT if no name is speficied in the USE command

Default return value from the RDD

 

 

 

Replacement macros used in the SQL Commands:

%T%

 

Tablename

 

 

 

%I%

 

Index(tag) name

 

 

 

%U%

 

Unique attribute

 

 

 

%FL%

 

Field List

 

 

 

%FDL%

 

Field definition List

 

 

 

%L%

 

Length of a Column

 

 

 

%D%

 

Decimals of a Column

 

 

 

%1%, %2%, %3% etc

 

Arguments to functions used in index expressions. For example :

 

 

 

 

 

STR(ItemNo,10,0)

 

will be translated to STR(%1%,%2%,%3%) and

 

 

 

IIF(A=B,C,D)

 

will be translated to IIF(%1%,%2%,%3%)