财政年度表之建表约束
来源：动视网
责编：小采
时间：2020-11-09 09:17:23
财政年度表之建表约束
财政年度表之建表约束:Create Table FinancialYear (fiscal_year INTEGER NOT NULL PRIMARY KEY, start_date DATE NOT NULL, CHECK ((EXTRACT(YEAR FROM start_date)=fiscal_year-1) AND (EXTRACT (MONTH FROM start_date)=10) AND (EXTRACT(DAY FROM start_date)=1), end_date DAT
导读财政年度表之建表约束:Create Table FinancialYear (fiscal_year INTEGER NOT NULL PRIMARY KEY, start_date DATE NOT NULL, CHECK ((EXTRACT(YEAR FROM start_date)=fiscal_year-1) AND (EXTRACT (MONTH FROM start_date)=10) AND (EXTRACT(DAY FROM start_date)=1), end_date DAT
Create Table FinancialYear
(fiscal_year INTEGER NOT NULL PRIMARY KEY,
start_date DATE NOT NULL,
CHECK ((EXTRACT(YEAR FROM start_date)=fiscal_year-1)
AND (EXTRACT (MONTH FROM start_date)=10)
AND (EXTRACT(DAY FROM start_date)=1),
end_date DATE NOT NULL,
CONSTRAINT valid_end_date
CHECK ((EXTRACT (YEAR FROM end_date)=fiscal_year)
AND (EXTRACT (MONTH FROM end_date)=9)
AND (EXTRACT (DAY FROM end_date)=30)))
财政年度表之建表约束
财政年度表之建表约束:Create Table FinancialYear (fiscal_year INTEGER NOT NULL PRIMARY KEY, start_date DATE NOT NULL, CHECK ((EXTRACT(YEAR FROM start_date)=fiscal_year-1) AND (EXTRACT (MONTH FROM start_date)=10) AND (EXTRACT(DAY FROM start_date)=1), end_date DAT
