Cml\Interfaces\Db::sum PHP 메소드

Db 0 문서 파일 보기 프로젝트 열기: linhecheng/cmlphp

sum() 공개 메소드

获取 SUM(字段名或*) 的结果

public sum ( string $field = '*', boolean \| string $isMulti = false, boolean \| string $useMaster = false ) : mixed
$field	string	要统计的字段名
$isMulti	boolean \| string	结果集是否为多条默认只有一条。传字符串时相当于执行了 groupBy($isMulti)
$useMaster	boolean \| string	是否使用主库默认读取从库
리턴	mixed

    public function sum($field = '*', $isMulti = false, $useMaster = false);

__construct

__destruct

_and

_or

affectedRows

avg

buildSql

callProcedure

chunk

columns

commit

conditionFactory

connect

count

decrement

delete

get

getAllTableStatus

getDbFields

getOne

getOneValue

getPk

getTables

groupBy

having

increment

insertId

join

lBrackets

leftJoin

limit

max

min

orderBy

paginate

plunk

rBrackets

rightJoin

rollBack

savePoint

select

set

startTransAction

sum

table

truncate

union

update

version

where

whereBetween

whereGt

whereGte

whereIn

whereLike

whereLt

whereLte

whereNot

whereNotBetween

whereNotIn

whereNotLike

whereNotNull

whereNull

whereRegExp