Question

我正在创建一个名为#PILOTTERR的临时表。我需要在此表中插入超过40,000条记录。执行大约需要10分钟。有没有办法让我更快？

CREATE TABLE #PILOTTERR 
(
     Zip TEXT, 
     Office CHAR(4), 
     Branch NVARCHAR(33), 
     District NVARCHAR(37), 
     Region NVARCHAR(26), 
     SE_Territory NVARCHAR(42), 
     ISE_Territory NVARCHAR(43)
);

INSERT INTO #PILOTTERR 
VALUES ('00544','NY04','Long Island','New York-Long Island','US Northeast','SE-New York/Long Island-A','ISE-New York/Long Island-D')

INSERT INTO #PILOTTERR 
VALUES ('01001','MA01','North Boston','North Boston','US Northeast','SE-North Boston-C','ISE-North Boston-B')
    etc....

Answer 1

尝试这种方法：

CREATE TABLE #PILOTTERR (
                    Zip NVARCHAR(10), 
                    Office CHAR(4), 
                    Branch NVARCHAR(33), 
                    District NVARCHAR(37), 
                    Region NVARCHAR(26), 
                    SE_Territory NVARCHAR(42), 
                    ISE_Territory NVARCHAR(43)
                    );

而不是多次插入语句只有1：

    INSERT INTO #PILOTTERR 
    VALUES (N'00544','NY04',N'Long Island',N'New York-Long Island',N'US Northeast',N'SE-New York/Long Island-A',N'ISE-New York/Long Island-D'),
           (N'01001','MA01',N'North Boston',N'North Boston',N'US Northeast',N'SE-North Boston-C',N'ISE-North Boston-B'),
         (etc..)

如果您的数据类型是NVARCHAR，那么以N''方式开始引号，服务器不必从VARCHAR转换为NVARCHAR。

用一个小得多的敏感数据类型替换TEXT，比如NVARCHAR（10），我觉得它应该足够ZIPCODE

更好的是，正如我在评论中提到的，如果您从excel或csv获取数据，则可以使用SQL Server的导入数据向导。您可以找到有关它的更多信息HERE

SQL Server创建的表运行缓慢

1 个答案: