Defining Additional Attributes of Programs

The following rules apply:

  • Only those types of additional attributes appear in the window that apply to the type of program. For example: the option Class definition is not contained in the list when a program of type Resource is processed.

  • More than one choice can be made at a time. The respective input maps are then displayed one after the other.

This document covers the following topics:

Programs of Type Class

Class

Parameters
Class definition
Class Name The name of the class.
GUID The globally unique ID of the class.
Version The version number of the class.

Programs of Type Resource

Resource

Parameters
Resource definition
File name File name documented by the Predict program.
Library The name of the library in which the file name is stored.
User System Fnr The number of the user system file.
User System DBnr The number of the database in which the user system file is located.

The type of Resource can be documented in the language field of a Predict program object. There is a user exit program U-PGMLAN that allows dynamic extension of possible languages in each installation.

Programs of Type SQL Procedure

SQL Procedure

Parameters
Procedure name This name must comply with SQL naming conventions. See the section Naming Conventions for SQL Objects in the section Adabas D and Other SQL Systems in the Predict and Other Systems documentation.
Schema name Used as a qualifier for an unqualified procedure name.
Specific name Specifies a unique name for the procedure.
Collection
Identifies the package collection.
N NO COLLID
Y Use collection-ID. A collection-ID must then be specified.
blank none
WLM environment Identifies the MVS workload manager application environment.
Dyn. result set Specifies the maximum number of query result sets that the stored procedure can run.
Deterministic
Specifies whether the procedure returns the same results for identical arguments.
Y Yes
N No
blank undefined
Null input
Specifies whether the procedure is called if any of the input arguments is null at execution time.
Y Yes
N No
DB info
Specifies whether specific information that is included in DB2 is passed to the procedure when it is invoked.
Y Yes
N No
Stay resident Specifies whether the load module for the procedure remains resident in memory when the procedure ends.
Security
Specifies how the procedure interacts with an external security product.
D DB2
F Definer
U User
blank none
After failure
Specifies the action to be taken after a failure has occured. Valid values:
D Stop (system default). Stops after number of failures defined in the system defaults.
N Stop (number). Stops after number of failures defined by the user. If N is specified, enter a numeric value in the field Number of failure.
C Continue.
blank none
Run options Specifies the language environment run-time options to be used for the procedure.
Packagepath
Specifies the package path to use when the procedure is run
N No packagepath.
Y Use packagepath. A list of package collections must be specified.
blank none
Parameter style
Identifies the linkage convention use to pass parameters to the procedure.
D DB2SQL
G General
N General with nulls
J Java
blank none
Parameter CCSID
Specifies the encoding scheme. Valid values:
blank none
A ASCII
E EBCDIC
U Unicode
Special Register
Valid values:
I Inherit. The values of special registers are inherited.
D Default. Special registers are initialized to the default values.
blank none
Fenced
Determines that the external procedure runs in an external address space.
Y Yes
N No
SQL data
Indicates whether the procedure can execute any SQL statements.
M Modifies SQL data
N No SQL
R Read SQL data
S Contains SQL
blank none
Asutime Specifies the total amount of processor time.
Program type
Specifies whether the procedure runs as a main or a subroutine.
S Sub
M Main
blank none
Commit
Indicates whether DB2 commits the transaction immediately on return from the procedure.
Y Yes
N No
Debug Mode
Specifies whether the procedure can be run in debugging mode. The default is D (Disallow) when no Dynamic rules run behavior is in effect. Valid values:
D Disallow.
A Allow.
I Disable.
blank None.

Native SQL Procedure

Valid values are:

Parameters
Native
To indicate if the definition is for a native SQL procedure.
Y Yes.
N No. This is the default.
blank none
Version Specifies the procedure version identifier. The default is V1.
Package owner Specifies the owner of the package.
Prepare
Specifies whether to defer preparation of dynamic SQL statements that refer to remote objects, or to prepare them immediately.
D Defer.
N Nodefer.
blank Not specified. This is the default.
Current data
Specifies whether to require data currency for read-only and ambiguous cursors when the isolation level of cursor stability is in effect.
Y Yes.
N No. This is the default.
blank none
Degree
Specifies whether to attempt to run a query using parallel processing to maximize performance.
1 One. This is the default.
A Any.
blank Not specified.
Dynamic rules
Specifies the values that apply, at run time, for the following dynamic SQL attributes:
R Run. This is the default.
B Bind.
D Definebind.
E Definerun.
I Invokebind.
N Invokerun.
blank Not specified.
Appl. encoding
Specifies the default encoding scheme for SQL variables in static SQL statements in the routine body.
A ASCII.
E EBCDIC.
U Unicode.
blank Not specified.
Explain
Specifies whether information will be provided about how SQL statements in the routine will execute.
Y Yes.
N No. This is the default.
blank Not specified.
Immediate write
Specifies whether immediate writes are to be done for updates that are made to group buffer pool dependent page sets or partitions.
Y Yes.
N No. This is the default.
blank Not specified.
Isolation level
Specifies how far to isolate the routine from the effects of other running applications.
C Cursor stability.
S Read stability.
R Repeatable read.
U Uncommitted read.
blank Not specified.
Keep dynamic
Specifies whether DB2 keeps dynamic SQL statements after commit points.
Y Yes.
N No. This is the default
blank Not specified.
Optimization hints Specifies query optimization hints.
SQL path Specifies the SQL path.
Release at
Specifies when to release resources that the procedure uses: either at each commit point or when the procedure terminates.
C Commit. This is the default.
D Deallocate.
blank Not specified.
REOPT
Specifies if DB2 will determine the access path at run time by using the values of SQL variables or SQL parameters, parameter markers, and special registers.
N None. This is the default.
A Always.
O Once.
blank Not specified.
Validate
Specifies whether to recheck, at run time, errors of the type OBJECT NOT FOUND and NOT AUTHORIZED that are found during bind or rebind.
R Run. This is the default.
B Bind.
blank Not specified.
Rounding
Specifies the desired rounding mode for manipulation of DECFLOAT data.
C Ceiling.
D Down.
F Floor.
1 Half down.
2 Half even.
3 Half up.
U Up.
blank Not specified. This is the default.
Date format
Specifies the date format for result values that are string representations of date or time values.
I ISO.
E EUR.
U USA.
J JIS.
L Local.
blank Not specified. This is the default.
Decimal
Specifies the maximum precision that is to be used for decimal arithmetic operations.
15
15,n (where n must be a number between 1 and 9)
31
31,n (where n must be a number between 1 and 9)
blank Not specified. This is the default.
For update
Specifies whether the FOR UPDATE clause is required for a DECLARE CURSOR statement if the cursor is to be used to perform positioned updates.
R Required. This is the default.
O Optional.
blank Not specified.
Time format
Specifies the time format for result values that are string representations of date or time values.
I ISO.
E EUR.
U USA.
J JIS.
L Local.
blank Not specified. This is the default.

Programs of Type Database function

Database function

Parameters
Function name This name must comply with SQL naming conventions. See the section Naming Conventions for SQL Objects in the section Adabas D and Other SQL Systems in the Predict and Other Systems documentation.
Function type
The type of the function.
S Scalar
T Table
Schema name Used as qualifier for an unqualified function name.
Specific name Specifies an unique name for the function.
Collection
Identifies the package collection.
N NO COLLID
Y Use collection-ID. A collection-ID must then be specified.
blank none
WLM environment Identifies the MVS workload manager application environment.
Special Register
Valid values:
I Inherit. The values of special registers are inherited.
D Default. Special registers are initialized to the default values.
blank none
Deterministic
Specifies whether the function returns the same results for identical arguments.
Y Yes
N No
Null input
Specifies whether the function is called if any of the input arguments is null at execution time.
Y Yes
N No
External action
Specifies whether the function takes an action that changes the state of an object that DB2 does not manage.
Y Yes
N No
Final call
Specifies whether final call is made to the function.
Y Yes
N No
DB info
Specifies whether specific information that DB2 knows is passed to the function when it is invoked.
Y Yes
N No
Asutime Specifies the total amount of processor time.
Program type
Specifies whether the function runs as a main or a subroutine.
S Sub
M Main
blank none
Run options Specifies the language environment run-time options to be used for the function.
Packagepath
Specifies the package path to use when the function is run
N No packagepath.
Y Use packagepath. A list of package collections must be specified.
blank none
After failure
Specifies the action to be taken after a failure has occured. Valid values:
D Stop (system default). Stops after number of failures defined in the system defaults.
N Stop (number). Stops after number of failures defined by the user. If N is specified, enter a numeric value in the field Number of failure.
C Continue.
blank none
Parameter Style
Specifies the conventions used for passing parameters to and returning the value from functions. Valid values:
D DB2SQL
J Java
blank not specified
Parameter CCSID
Specifies the encoding scheme. Valid values:
blank none
A ASCII
E EBCDIC
U Unicode
Fenced
Determines that the external function runs in an external address space.
Y Yes
N No
SQL data
Indicates whether the function can execute any SQL statements.
M Modifies SQL data
N No SQL
R Read SQL data
S Contains SQL
blank none
Scratchpad Specifies whether DB2 provides a scratchpad for the function.
Allow parallel
Specifies whether parallelism can be used.
Y Yes
N No
Cardinality Specifies an estimate of the expected number of rows that the function returns.
Stay resident Specifies whether the load module for the function remains resident in memory when the function ends.
Security
Specifies how the function interacts with an external security product.
D DB2
F Definer
U User
blank none

System Programs

Programs that are only available as object code and hence have no language are documented with programs of type E (external object) and language Z (system program). Predict creates XRef data for these so called system programs because neither the preprocessor nor Natural can create XRef data for object code.

The implementation pointer for a system program has to be specified explicitly. One entry point (with the ID of the program object) is created by Predict, additional entry points have to be specified manually.

Programs of Type dynamic

Programs of type dynamic are used to document calls of programs of the same name from different steplibs depending on the library structure. The following rules apply:

  • Because programs of type dynamic document any number of implemented members, no check is performed as to whether the members documented by the program are actually implemented.

  • With the active retrieval function Programs using programs, programs of type dynamic are ignored as current objects.

  • Programs of this type can only have children for association "Uses PR concept".