1. Introducing Ingres Commands : Standard Flags and Parameters : Delimited Identifiers on the Command Line : Examples: Delimited Identifiers
 
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Examples: Delimited Identifiers
The following examples use the table names shown here:
Table Stored in Database
Delimited Identifier
Jane’s table
"Jane’s table"
"Expert" Table
"""Expert"" Table"
Windows: Surround delimited identifiers and their delimiting quotes with double quotes on the command line, and dereference the delimited identifier quotes, preceding them with a backslash (\):
report my_database "\"Jane's table\""
report my_database "\"\"\"Expert\"table\""
UNIX:
Bourne shell:
Surround delimited identifiers and their delimiting quotes with double quotes on the command line, and dereference the delimited identifier quotes, preceding them with a backslash (\):
report my_database "\"Jane's table\""
report my_database "\"\"\"Expert\"\" table\""
C shell:
Delimit all delimited identifier quotes and all other special shell characters, such as single quotes ('), spaces ( ), and colons (:), preceding them with a backslash (\):
report my_database \"Jane\'s\ table\"
report my_database \"\"\"Expert\"\" table\"
In some cases, strings contained inside delimited identifiers that contain special characters can be surrounded by double quotes instead:
report my_database \""Jane's table"\"
VMS: Surround delimited identifiers with a set of dereferenced double quotes on the command line. Also, you must dereference each embedded quote by doubling it (including any quotes required to dereference an embedded quote):
report my_database """Jane's table"""
report my_database """""""Expert"""" table"""
Delimited Identifiers Used on Authorization Parameters
You can use delimited identifiers to specify a username for the ‑u flag, a groupid parameter for the ‑G flag, or a roleid for the ‑R flag on the command line. A general example is:
sreport my_database myfile -u”user 5” -G”group 2”
Here are specific examples:
Windows:
sreport my_database myfile -u’”user 5”’ -G’”group 2”’
Windows NT:
sreport my_database myfile -u’”user5’””-G’”group 2’”
UNIX:
sreport my_database myfile -u’”user 5”’ -G’”group 2”’
VMS: In OpenVMS, you must also enclose the entire –Ggroupid parameter in double quotes:
sreport my_database myfile -u”””user 5”””“-G”””group2””””
Delimited Identifiers and Case Sensitivity
By default, identifiers are forced to lowercase, and are therefore case-insensitive. The casing rules can be specified at installation time for delimited identifiers. The following settings are allowed:
Ingres setting: lowercase (case-insensitive; forces all letters to lowercase).
ISO Entry SQL-92 standard: mixed case (case-sensitive; preserves case for delimited identifiers); regular identifiers are uppercase (case-insensitive; forces all letters to uppercase).
If complying with ISO Entry SQL-92 standards, the system administrator should set delimited identifiers to mixed case.