一、Where

主要用在过滤的，如以下用法：

1、MAP gdxlcs.mugua, TARGET gdxlcs.mugua,
WHERE (object_name=”MYTEST”) TABLE gdxlcs.mugua, FILTER (ON UPDATE, ON
DELETE, OBJECT_ID > 50);

二、@STRFIND

FILTER (@STRFIND
(OBJECT_NAME, "MYOBJECT") > 0)

查找是否存在，可以在复制进程

判断长度

转换数字成字符

合并字符

COLMAP (USEDEFAULTS,

Object_script= @STRCAT ( object_name,object_type)

COLMAP
(usedefaults, object_id_bak= @compute(object_id+100000));

@DATE和@DATENOW

FILTER (created > @DATENOW);

IF, CASE, EVAL, VALONEOF

FILTER (@IF (object_id> 60000, object_id, 0) >100);

进程监控函数