标签: insert-statement

谁能告诉我为什么这不起作用？

INSERT INTO Medical_History (pid, grafts, allergies,  diseases, surgearies, treatment)
VALUES ((SELECT pid FROM Pet WHERE pet_name='Jack' AND cid=(SELECT cid FROM Customer WHERE last_name='Iwannidis' AND first_name='Giwrgos')),
       'grafts', 'allergies', 'diseases', 'surgearies', treatments');

我收到语法错误:

unrecognized token "');"

嘿,我对VBA很新,我希望有人可以用最后一点代码帮助我.

我试图从电子表格中取出单元格并将它们添加到SQL表中,但我正在使用运行SQL语句的trubble.这是我到目前为止的代码.

     Private Sub ConnectDB()

       Dim oConn As Object

Set oConn = CreateObject("ADODB.Connection")
oConn.Open = "DRIVER={SQL Server};" & _
"SERVER=SERVER02;" & _
"DATABASE=platform;" & _
"USER=5y5t3mus3r;" & _
"PASSWORD=*******;" & _
"Option=3;"
 If oConn.State = adStateOpen Then
  MsgBox "Welcome to Database!"
 Else
 MsgBox "Sorry No Database Access."
 End If


Dim rs As ADODB.Recordset
Dim strSQL As String
Dim Company As String
Dim Address As String
Dim Address1 As String
Dim Address2 As String
Dim County As String
Dim Contact As …

假设我在列上有一个带有聚簇索引的下表(例如,a)

CREATE TABLE Tmp
(
    a int,
    constraint pk_a primary key clustered (a)
)

然后,让我们假设我有两组非常大的行要插入到表中.

• 第1组)值依次增加(即{0,1,2,3,4,5,6,7,8,9,...,999999997,999999998,99999999})
• 第2组)值依次递减(即{99999999,999999998,999999997,...,3,2,1,0}

你认为在第一组和第二组中插入值之间会有性能差异吗？如果是这样,为什么？

谢谢