??
字號(hào):
CREATE TABLE employee
(
emp_id empid
CONSTRAINT PK_emp_id PRIMARY KEY NONCLUSTERED
CONSTRAINT CK_emp_id CHECK (emp_id LIKE
'[A-Z][A-Z][A-Z][1-9][0-9][0-9][0-9][0-9][FM]' or
emp_id LIKE '[A-Z]-[A-Z][1-9][0-9][0-9][0-9][0-9][FM]'),
/* Each employee ID consists of three characters that
represent the employee's initials, followed by a five
digit number ranging from 10000 through 99999 and then the
employee's gender (M or F). A (hyphen) - is acceptable
for the middle initial. */
fname varchar(20) NOT NULL,
minit char(1) NULL,
lname varchar(30) NOT NULL,
job_id smallint NOT NULL
DEFAULT 1
/* Entry job_id for new hires. */
REFERENCES jobs(job_id),
job_lvl tinyint
DEFAULT 10,
/* Entry job_lvl for new hires. */
pub_id char(4) NOT NULL
DEFAULT ('9952')
REFERENCES publishers(pub_id),
/* By default, the Parent Company Publisher is the company
to whom each employee reports. */
hire_date datetime NOT NULL
DEFAULT (getdate())
/* By default, the current system date is entered. */
)
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