1 – logical-names
You can use logical names to save keystrokes if you work in several dictionary directories with long path names. With the DCL commands DEFINE and ASSIGN, you can define logical names for CDD path names you use often. Use either of the following formats in response to the DCL dollar-sign prompt: DEFINE logical-name "_CDD$TOP . . . given-name" ASSIGN "_CDD$TOP . . . given-name" logical-name Once you have defined logical names, you can use them in place of path names in utility command lines. The CDD attempts to translate the first given name of any path specification as a logical name. For example, if you specified the path name SALES.JONES, the CDD would make one attempt to translate SALES. If SALES were not defined as a logical name, the translation would fail, and the CDD utility would process the directory CDD$TOP.SALES.JONES. If, however, SALES were defined as a logical name, the translation would succeed, and the CDD utility would attempt to process a path name beginning with SALES' translation string. To prevent logical name translation, prefix the path specification with an underscore (_). The CDD would make no attempt to translate SALES if you specified the path name, _SALES.JONES. Instead, the CDD would process CDD$TOP.SALES.JONES
2 – minus-sign
The minus sign or hyphen (-) in place of a given name in any path name indicates a name one generation back. This substitution is valid only for the first given names in the specification. Once you have specified a given name, you may not use any hyphens further down in the chain: the hyphens must be first in the string. For example, if your default directory is CDD$TOP.SALES.JONES, you can specify the CORPORATE directory by typing -.-.CORPORATE. Note that -.SALES.-.PRODUCTION is not a legal usage because the sequence SALES.- is not allowed.
3 – given-name
A given name is a string of up to 31 characters. The legal
characters in a given name are A-Z, 0-9, _, and $. The first
character must be a letter from A-Z, and the last character cannot be
_ or $. The DMU translates all lowercase letters to uppercase.
For example, SALES and CDD$TOP are legal given names. S{L?S,
however, is not a legal given name because it contains the illegal
characters { and ?.
4 – passwords
Within any type of path specification, each dictionary directory, subdictionary, and object can have a password associated with it. To use a password in a path specification, enclose the password in parentheses and place it immediately after the given name of the directory, subdictionary, or object with which it is associated. Do not type a space between the given name and the password. If you are using the > at the end of a path name, the wild card follows any password associated with the last given name in the chain. If you specify the version number of an object, the password should immediately follow the version number. Passwords contain from 1 to 64 printable ASCII characters, including space and tab. DMU translates lowercase letters to uppercase. The only forbidden characters in a password are open parenthesis [(], close parenthesis [)], and period [.]. The following are legal given names with passwords: PERSONNEL(SEMI_SECRET) SERVICE(SECRET) The following is a legal path name with passwords: CDD$TOP.PERSONNEL(SEMI_SECRET).SERVICE(SECRET).SALARY_RECORD;1
5 – path-name
A path name consists of a string of given names separated by periods. It uniquely identifies a dictionary directory, subdictionary, or object through its line of ancestry from CDD$TOP. For example, you can specify the dictionary directory STANDARDS in the sample dictionary with the following path name: CDD$TOP.PERSONNEL.STANDARDS The following is not a legal path name because a path name cannot contain consecutive periods: CDD$TOP..PERSONNEL
6 – path-specification
A path-name can be specified in either of two ways:
1. By enumerating the chain of given names from CDD$TOP to the
target dictionary directory, subdictionary, or object explicitly.
2. By enumerating the chain of given names from the default
directory to the target dictionary directory, subdictionary, or
object (not including the name of the default directory in the
chain).
7 – privileges
Privileges can be specified as:
1. One of the following keywords.
2. A group of the following keywords in parentheses and separated by
commas.
3. A group of the following key letters delimited by < > (do not
include any separators or blanks between letters).
Keyword Key Letter Privilege
------- ---------- ---------
CONTROL C may control access control lists.
DTR_EXTEND E may extend DATATRIEVE table or procedure.
DTR_MODIFY M may ready DATATRIEVE domain for modify.
DTR_READ R may ready DATATRIEVE domain for read.
DTR_WRITE W may ready DATATRIEVE domain for write.
EXTEND X may create directory children.
FORWARD F may create subdictionaries.
GLOBAL_DELETE G may delete subdictionaries, directories,
and their children.
HISTORY H may add entries to history lists.
LOCAL_DELETE D may delete subdictionaries, directories,
and objects.
PASS_THRU P may pass through a subdictionary or
dictionary directory.
SEE S may see (read) a dictionary object.
UPDATE U may update a dictionary object.
ALL all of the above.
8 – versions
You can specify the version of a dictionary object in several ways:
Specification Result Example
Absolute DMU operates on SALARY_RANGE;2
version the object with
number+ the specified
version number
Relative DMU operates on SALARY_RANGE;-1
version the object a
number+ specified number
of versions
below the
highest version
Wildcard DMU operates on SALARY_RANGE;_*
version all versions of
number+ the object
Semicolon DMU operates on SALARY_RANGE;
without a the highest
version version of the
number+ object
No semicolon DMU operates on SALARY_RANGE
or version the highest
number++ version of the
object
+ You cannot use this specification with DMU PURGE.
++ If you use this specification with DMU LIST, DMU operates on all
children in the directory.
9 – wildcards
With some commands in the Dictionary Management Utility, you can
specify a path by using its proper path name or by including wildcard
characters in the path name.
o The % replaces any single character in a given name.
o The * replaces any number of characters, and its use is legal
even if there is no corresponding character to replace. The *
can also replace the version number of an object. Used by
itself, the * refers to all versions of an object.
o The > as the last character in a path name indicates that you
want to include all the descendants of the specified dictionary
directory or subdictionary. If you end a path name with .>, the
wild card indicates that only the descendants are to be
processed. If you end a path name with >, the wild card without
the preceding period, DMU processes the last specified dictionary
directory or subdictionary as well as all of its descendants.
o The @ prefixed to the given name of a dictionary directory or
subdictionary signifies that the directory or subdictionary and
all of its named descendants are to be processed.