count

English [ka?nt]

n.Total; Count; Argument

v. ??? ?????;

SQLite COUNT ?? ???

??: SQLite COUNT ?? ??? ?????? ???? ? ?? ???? ? ?????.

??: ??sqlite> SELECT count(*) FROM TABLENAME;

SQLite COUNT ?? ?

COMPANY 表

ID          NAME        AGE         ADDRESS     SALARY
----------  ----------  ----------  ----------  ----------
1           Paul        32          California  20000.0
2           Allen       25          Texas       15000.0
3           Teddy       23          Norway      20000.0
4           Mark        25          Rich-Mond   65000.0
5           David       27          Texas       85000.0
6           Kim         22          South-Hall  45000.0
7           James       24          Houston     10000.0


實例：sqlite> SELECT count(*) FROM COMPANY;

結果：
count(*)
----------
7