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ADD
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HAVING
IN
INDEX
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IS NULL
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LIKE
LIMIT
NOT
NOT NULL
OR
ORDER BY
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PROCEDURE
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INSTR
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POSITION
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BIN
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Concat with +
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LEN
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NCHAR
PATINDEX
QUOTENAME
REPLACE
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RIGHT
RTRIM
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SPACE
STR
STUFF
SUBSTRING
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TRIM
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ABS
ACOS
ASIN
ATAN
ATN2
AVG
CEILING
COUNT
COS
COT
DEGREES
EXP
FLOOR
LOG
LOG10
MAX
MIN
PI
POWER
RADIANS
RAND
ROUND
SIGN
SIN
SQRT
SQUARE
SUM
TAN
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CURRENT_TIMESTAMP
DATEADD
DATEDIFF
DATEFROMPARTS
DATENAME
DATEPART
DAY
GETDATE
GETUTCDATE
ISDATE
MONTH
SYSDATETIME
YEAR
高级功能
CAST
COALESCE
CONVERT
CURRENT_USER
IIF
ISNULL
ISNUMERIC
NULLIF
SESSION_USER
SESSIONPROPERTY
SYSTEM_USER
USER_NAME
MS Access 函数
String 字符串函数
Asc
Chr
Concat with &
CurDir
Format
InStr
InstrRev
LCase
Left
Len
LTrim
Mid
Replace
Right
RTrim
Space
Split
Str
StrComp
StrConv
StrReverse
Trim
UCase
Numeric 数值函数
Abs
Atn
Avg
Cos
Count
Exp
Fix
Format
Int
Max
Min
Randomize
Rnd
Round
Sgn
Sqr
Sum
Val
Date 日期函数
Date
DateAdd
DateDiff
DatePart
DateSerial
DateValue
Day
Format
Hour
Minute
Month
MonthName
Now
Second
Time
TimeSerial
TimeValue
Weekday
WeekdayName
Year
其他函数
CurrentUser
Environ
IsDate
IsNull
IsNumeric
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SQL
ADD 关键字
❮ SQL 关键字参考
ADD
ADD
命令用于在现有表中添加列。
以下 SQL 将 "Email" 列添加到 "Customers" 表中:
实例
ALTER TABLE Customers
ADD Email varchar(255);
亲自试一试 »
❮ SQL 关键字参考
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