1. Database files (3)
1. The main database file file extension .mdf
2. Secondary database file file extension .ndf
3. Transaction log file extension .ldf
Second, the code to create the database
creat database myschool --creat create stuff
on primary
(
/* Properties of the main data file */
name='myschool_data', -- the logical name of the main data file
filename='e:\mycool_data.mdf', -- the physical path of the main data file
size=5mb, -- the initial size of the main data file
maxsize=100mb, -- the maximum value of the main data file
filegrowth=15% -- the growth rate of the main data file , the last sentence does not add a comma
), -- the comma between the primary database and the secondary database cannot be lost
(
/* Attributes of the secondary data file */
name='myschool_data2', -- the logical name of the secondary data file
filename='e:\mycool_data2.ndf', -- the physical path of the secondary data file
size=8mb, -- the initial size of the secondary data file
maxsize=100mb, -- the maximum value of the secondary data file
filegrowth=10% -- the growth rate of the secondary data file , the last sentence does not add a comma
)
log on
(
/* Attributes of the log file */
name='myschool_log', -- the logical name of the log file
filename='e:\mycool_log.ldf', -- the physical path of the log file
size=2mb, -- initial size of log file
filegrowth=2mb, -- the growth rate of the log file , the last sentence does not add a comma
)
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