Caché ObjectScript Reference - InterSystems Documentation

DescriptionThe SET command assigns a value to a variable. It can set a single variable, or set multiplevariables using any combination of two syntactic forms. It can assign values to variables byspecifying a comma-separated list of variable=value pairs. For example:SET a=1,b=2,c=3It can assign the same value to multiple variables by specifying a comma-separated list ofvariables enclosed in parentheses. For example:SET (a,b,c)=1You can combine these two syntactic forms in any combination. For example:SET (a,b)=1,c=2,(d,e,f)=3The maximum number of assignments you can perform with a single invocation of SET is128.If a specified variable does not exist, SET creates it and assigns the value. If a specifiedvariable exists, SET replaces the previous value with the specified value.A value can be a literal or an expression that evaluates to a value.ArgumentspcAn optional postconditional expression. Caché executes the command if the postconditionalexpression is true (evaluates to a non-zero numeric value). Caché does not execute the commandif the postconditional expression is false (evaluates to zero). For further details, referto Command Postconditional Expressions in Using Caché ObjectScript.variableSETThe variable to receive the value resulting from the evaluation of value. It can be a localvariable, a process-private global, a global variable, or a special variable. A local variable,process-private global, or global variable can be either subscripted or unsubscripted. A globalvariable can be specified with extended global reference (see Global Structure in Using CachéMulti-Dimensional Storage).Local variables, process-private globals, and special variables are specific to the currentprocess; they are mapped to be accessible from all namespaces. A global variable persistsafter the process that created it terminates. A global is specific to the namespace in which itCaché ObjectScript Reference 127