OGG 行過濾filter 引數

Using FILTER
Use FILTER to select or exclude records based on a numeric value. A filter expression can use 
conditional operators, Oracle GoldenGatecolumn-conversion functions, or both
filter 引數基於數值來選擇或者提出資料！！！-----最重要
Separate all FILTERcomponents with commas. A FILTERclause can include the following:
● Numbers
● Columns that contain numbers
● Functions that return numbers
● Arithmetic operators: 
+ (plus)
- (minus)
* (multiply)
/ (divide)
\ (remainder)
● Comparison operators: 
> (greater than)
>= (greater than or equal)
< (less than)
<= (less than or equal)
= (equal)
<> (not equal)
Results derived from comparisons can be zero (indicating FALSE) or non-zero (indicating 
TRUE). 
● Parentheses (for grouping results in the expression)
● Conjunction operators: AND, OR
FILTER ((PRODUCT_PRICE*PRODUCT_AMOUNT)>10000))
FILTER (@STRFIND(NAME, "JOE") > 0)  @STRFIND--字元函式