账户表/余额表/消费存款表

账户表/余额表/消费储蓄表
文档出处:http://netkiller.github.iohttp://netkiller.sourceforge.net

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此表适用于购物车等金钱来往账面等等。

-- Table: account-- DROP TABLE account;CREATE TABLE account(  id integer NOT NULL DEFAULT nextval('trade_id_seq'::regclass),  no character varying(10) NOT NULL, -- 账号  balance money NOT NULL DEFAULT 0.00, -- 余额  datetime timestamp without time zone NOT NULL DEFAULT (now())::timestamp(0) without time zone,  CONSTRAINT account_pkey PRIMARY KEY (id))WITH (  OIDS=FALSE);ALTER TABLE account  OWNER TO dba;COMMENT ON COLUMN account.no IS '账号';COMMENT ON COLUMN account.balance IS '余额';-- Index: account_no_idx-- DROP INDEX account_no_idx;CREATE INDEX account_no_idx  ON account  USING btree  (no COLLATE pg_catalog."default");

账户结余计算

select acc.*, (select sum(balance)+acc.balance from account as ac where ac.id < acc.id) as profit from account as acc;test=# select acc.*, (select sum(balance)+acc.balance from account as ac where ac.id < acc.id) as profit from account as acc; id |  no  | balance  |      datetime       | profit----+------+----------+---------------------+---------  1 | 1000 |    $0.00 | 2013-10-09 10:51:10 |  2 | 1000 |   $12.60 | 2013-10-09 10:51:22 |  $12.60  4 | 1000 |   $16.80 | 2013-10-09 10:51:42 |  $29.40  5 | 1000 |  $100.00 | 2013-10-09 10:51:49 | $129.40  6 | 1000 |  $200.00 | 2013-10-09 10:56:35 | $329.40  7 | 1000 |   $50.45 | 2013-10-09 10:57:23 | $379.85  8 | 1000 |   $75.50 | 2013-10-09 10:57:31 | $455.35  9 | 1000 |  -$55.30 | 2013-10-09 10:59:28 | $400.05 10 | 1000 | -$200.00 | 2013-10-09 10:59:44 | $200.05(9 rows)

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