■expr [NOT] IN (valueslist).
Note– The 5800 system emulator supports (but the cluster database does not) a JDBC
“escape”clause that allows you to treat either %or _as constant characters. There is
currentlyno way to accomplish this in a LIKE clause in a query on a live cluster.
■Thefollowing JDBC function escapes have been tested and are supported:
–{fnUCASE(string)} to convert a string to uppercase.
–{fnLCASE(string)} to convert a string to lowercase.
–{fnABS(value)} to take the absolute value of a numeric expression.
–{fnLENGTH(string)} to get the length of a string.
–{fnSUBSTRING(string, start, length)} toget a character string formed by
extractinglength characters from string beginning at start.
–{fnLOCATE(string1, string2[, start])} tolocate the position in string2 of the
rstoccurrence of string1, searching from the beginning of string2.Ifstartis
specied,the search begins from position start.0is returned if string2 does not
containstring1.
–{fnLTRIM(string)} to remove the leading blank spaces in a character string
–{fnRTRIM(string)} to remove the trailing blank spaces of a character string
–{fnCONCAT(string1, string2)} to get the concatanated character string by
appendingstring2 to string1. If a string is NULL, the result is DBMS-dependent.
–{fn TIMESTAMPDIFF(interval, timestamp1, timestamp2)}. An integer representing
thenumber of interval by which timestamp2 is greater than timestamp1.interval
maybe one of the following: SQL_TSI_FRAC_SECOND,SQL_TSI_SECOND,SQL_TSI_MINUTE,
SQL_TSI_HOUR,SQL_TSI_DAY,SQL_TSI_MONTH,SQL_TSI_QUARTER,orSQL_TSI_YEAR.
–{fn TIMESTAMPADD(interval, count, timestamp)}. A timestamp calculated by
addingcount number of intervalstotimestamp.intervalmay be one of the
following:SQL_TSI_FRAC_SECOND,SQL_TSI_SECOND,SQL_TSI_MINUTE,SQL_TSI_HOUR,
SQL_TSI_DAY,SQL_TSI_WEEK,SQL_TSI_MONTH,SQL_TSI_QUARTER,orSQL_TSI_YEAR.
■field_nameIS NOT NULL to return all objects that have a value for a specic eld. In
particular,the query "system.object_id IS NOT NULL"can be used to query all the objects
inthe system.
Note– The form "field_name IS NULL"to identify all the objects that lack a value for a
speciceld is not supported and will not work properly in all cases.
SupportedExpressionTypes
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