DBE_PLDEBUGGER.print_var

During debugging on the debug end, print_var is called to print the name and value of the specified variable in the current stored procedure. You can also use this function to print variables when an error is reported, as described in Table 1. The input parameter frameno of this function indicates the stack layer to be traversed. This function can be invoked without frameno. By default, the top-layer stack variable is queried.

**Table 1** print_var input parameters and return values
Name	Type	Description
var_name	IN text	Variable.
frameno	IN integer (optional)	Specified stack layer. The default value is the top layer.
varname	OUT text	Variable name.
vartype	OUT text	Variable type.
value	OUT text	Variable value.
package_name	OUT text	Package name corresponding to the variable. This parameter is reserved and is left empty currently.
isconst	OUT boolean	Whether the value is a constant.