In Sage X3 latest versions, we are provided with new feature to define filter criterion on the database. This function defines a filtering condition on a database query. The condition is expressed in Sdata where syntax.
This function is only valid inside a Where clause of a database instruction (For, Filter, File, Link).
Syntax:
Where evaluesdata(EXPRESSION, VARIABLES, COLUMNS)
- EXPRESSION is a filter expressed in SData where syntax.
- VARIABLES is an array containing the variable names used in the filter.
- COLUMNS is an array containing the database columns referenced by the variable names.
Example:
Local File MYTABLE [MYT]
Local Char VARS(20)(1..2), COLS(20)(1..2)
VARS(1)=”city” : VARS(2)=”total”
COLS(1)=”[MYT]CITYNAME” : COLS(2)=”[MYT]AMOUNT”
# The condition
Filter [MYT] Where evalueSData(
& “(city in ‘London’,’Paris’) and (total between 1 and 10) ”
& , VARS, COLS)
# is equivalent to
Filter [MYT] Where find(CITYNAME,’London’,’Paris’) and (AMOUNT>=1 and AMOUNT<=100)
Here, the output data will contain city(either London or paris) and total amount between 1 to 100.
Comments:
This function only supports the following subset of the SData Query language:
- String, numeric, date and datetime literals (for example, ‘Hello “World”‘,”I’m tired”, 3.14, @1959-05-29@, @2008-05-19T16:41:00Z@).
- Parentheses
- The following operators and functions:
| Keyword | Description | Example |
| lt | less than | amount lt 5000 |
| gt | greather than | amount gt 3000 |
| le | less or equal | amount le 4500 |
| ge | greater or equal | amount ge 7800 |
| eq | equal | amount eq 3000 |
| ne | not equal | amount ne 3000 |
| between … and… | between two values | amount between 20 and 30 |
| in | contained in a list of values | amount in (3,14,15,9,26) |
| like | matches a string pattern | name like ‘%PONT%’ |
| and | logical and | amount ne 300 and amount ne 500 |
| or | logical or | amount eq 300 or amount eq 500 |
| abs | absolute value | abs(amount) eq 6 |
| ascii | ASCII code of first character | ascii(countrycode) eq 32 |
| char | single char from ASCII code | countrycode eq char(32) |
| div | division | amount div 2 eq 3 |
| left(str,len) | leftmost `len` characters from str; `str` if less than `len` characters | left(name,3)=”Doe” |
| lower(str) | converts str to lower case | lower(name)=”doe” |
| upper(str) | converts str to upper case | lower(name)=”DOE” |
| mod | modulus | number mod 2 eq 0 |
| mul | multiplication | amount mul 3 eq 15 |
| not | negation | not (amount eq 3) |
| pow | power | amount pow 3 eq 125 |
| right(str,len) | rightmost `len` characters from `str`; `str` if less than `len` characters | right(name,2)=’oe’ |
| substring(str,index,len) | substring starting at `start` and containing `len` characters; start is 1-based | substring(name,4,5)=’ti’ |
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