InterSystems SQL Reference
Syntax Conventions Used in this Manual
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Symbol | Meaning |
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[ nnnn ] | An argument enclosed in square brackets is optional. Specify none or one. |
{ nnnn } | An argument
enclosed in curly braces is optional, and may be repeated multiple times.
Specify none, one, or more than one. Curly braces are also used
as literal characters, for example in ODBC scalar functions with the form:
{fn FUNCTION(arg)} |
mmmm | nnnn | A vertical bar means OR. Specify either one or the other. |
. . . | An ellipsis indicates an unspecified portion of a complete SQL statement. It can also be used to specify repetition: var1,var2,... |
::= | Is equivalent to. |