DECLARE @tblVariable TABLE(SPID INT, Status VARCHAR(200), [Login] VARCHAR(200), HostName VARCHAR(200),
BlkBy VARCHAR(200), DBName VARCHAR(200), Command VARCHAR(200), CPUTime INT,
DiskIO INT, LastBatch VARCHAR(200), ProgramName VARCHAR(200), _SPID INT,
RequestID INT)
INSERT INTO @tblVariable
EXEC Master.dbo.sp_who2
SELECT v.*, t.TEXT
FROM @tblVariable v
INNER JOIN sys.sysprocesses sp ON sp.spid = v.SPID
CROSS APPLY sys.dm_exec_sql_text(sp.sql_handle) AS t
ORDER BY BlkBy DESC, CPUTime DESC
kill xxx
參考: https://learn.microsoft.com/en-us/answers/questions/842347/sql-server-how-to-find-out-who-lock-my-specific-ta
Bike, 2023/8/17 上午 10:44:05
試說明以下程式碼的功用, 以及可改進的部份.
string EndDate = Request["EndDate"];
DataTable qtyControls = U2.SQL.DTFromSQL("Select YA00, PD00 from QtyControl Where EndDate > '" + EndDate + "' and SoldQty >= InitQty");
var values = qtyControls.AsEnumerable().Select(r => "('" + r.Field<string>("YA00") + "','" + r.Field<string>("PD00") + "')").ToList();
var sqls = new List<string>();
sqls.Add("Delete StopSaleYAP;");
int start = 0;
while(start < values.Count)
{
var end = start + 999;
if(end > values.Count - 1)
{
end = values.Count;
}
sqls.Add("insert into StopSaleYAP(YA00, PD00) Values" + string.Join(",", values.GetRange(start, end)) + ";");
start = end + 1;
}
U2.SQL.ExecuteSQL(string.Join("\r\n", sqls));
public static bool IsErrorOrder(Order.Input.CheckValidOrder dto)
{
if (dto.OrderNos == null || dto.OrderNos.Count == 0)
{
return false;
}
var orderCount = dto.OrderNos.Count();
var orders = NpreoOrderMain.GetList(dto.OrderNos);
if (orders.Count != orderCount || !dto.OrderNos.Any(x => orders.Select(o => o.Order_No).Contains(x)))
{
return true;
}
return false;
}
var fu = Request.Files[0];
fu.SaveAs(Server.MapPath("UploadFiles/") + fu.FileName);
--
基本題:
1. 對 Linq 熟嗎.
2. 對 ASP.Net 的 Cache 熟悉嗎.
3. 用過什麼 ORM, 試說明優缺點.
4. 試說明 MVC 的架構.
資安相關問題:
1. 試說明 SQL Injection
2. 試說明 Cross Site Injection.
3. 上傳檔案要注意的事項.
4. 試說明 cookie 的安全設定 ? same site, secure, http only.
前端相關加分題:
1. jQuery 或 Vue 熟悉嗎 ?
2. 試說明 RWD
3. 試說明 bootstrap
進階問題:
1. 試說明 Reflection
2. 試說明 Dependency Injection
3. 試說明 singleton vs static
4. 試單有兩個欄位 Id, Status (付款待確認: 1.1; 已付款: 2, 訂單已出貨: 3; 訂單取消中: 5; )
狀態 1.1 和 狀態 2 的訂單可取消，取消後改為狀態 5
客人要取消訂單，訂單編號為 123, 試說明程式執行的過程。
Bike, 2020/10/24 上午 10:24:51
--抓所有的 Table
Select * from INFORMATION_SCHEMA.TABLES
--抓所有的 COLUMNS
Select * from INFORMATION_SCHEMA.COLUMNS
--抓欄位的 Description
select
st.name [Table],
sc.name [Column],
sep.value [Description]
from sys.tables st
inner join sys.columns sc on st.object_id = sc.object_id
left join sys.extended_properties sep on st.object_id = sep.major_id
and sc.column_id = sep.minor_id
and sep.name = 'MS_Description'
where st.name = 'TableName'
and sc.name = 'ColumnName'
--修改欄位的 Description.
EXEC sp_updateextendedproperty
@name = N'MS_Description', @value = 'Your description',
@level0type = N'Schema', @level0name = 'dbo',
@level1type = N'Table', @level1name = 'TableName',
@level2type = N'Column', @level2name = 'Name';
EXEC sp_addextendedproperty
@name = N'MS_Description', @value = 'Code description',
@level0type = N'Schema', @level0name = 'dbo',
@level1type = N'Table', @level1name = 'TableName',
@level2type = N'Column', @level2name = 'ColumnName';
--新增 Table 的 extendedproperty
EXEC sp_addextendedproperty
@name = N'Description', @value = 'Hey, here is TableName description!',
@level0type = N'Schema', @level0name = 'dbo',
@level1type = N'Table', @level1name = 'TableName'
GO
--修改 Table 的 extendedproperty
EXEC sp_updateextendedproperty
@name = N'Description', @value = 'Hey, here is my description! 123',
@level0type = N'Schema', @level0name = 'dbo',
@level1type = N'Table', @level1name = 'TableName'
GO
--讀取 Extended Property
SELECT sys.objects.name AS TableName, ep.name AS PropertyName,
ep.value AS Description
FROM sys.objects
CROSS APPLY fn_listextendedproperty(default,
'SCHEMA', schema_name(schema_id),
'TABLE', name, null, null) ep
WHERE sys.objects.name NOT IN ('sysdiagrams')
ORDER BY sys.objects.name
--讀取 Column 的 Description
SELECT objtype, objname, name, value
FROM fn_listextendedproperty (NULL, 'schema', 'dbo', 'table', 'TableName', 'column', default);
GO
--讀取特定 Table 的 Description
SELECT *
FROM fn_listextendedproperty (NULL, 'schema', 'dbo', 'table', 'TableName', default, default);
GO
--讀取 所有 Table 的 Description
SELECT *
FROM fn_listextendedproperty (NULL, 'schema', 'dbo', 'table', default, default, default);
GO
--新增或修改資料表說明
IF not exists(SELECT * FROM ::fn_listextendedproperty (NULL, 'user', 'dbo', 'table', '資料表名稱', NULL, NULL))
BEGIN
exec sp_addextendedproperty 'MS_Description', '資料表說明', 'user', 'dbo', 'table', '資料表名稱'
END
ELSE
BEGIN
exec sp_updateextendedproperty 'MS_Description', '資料表說明', 'user', 'dbo', 'table', '資料表名稱'
END
--新增或修改欄位說明
IF not exists(SELECT * FROM ::fn_listextendedproperty (NULL, 'user', 'dbo', 'table', '資料表名稱', 'column', '欄位名稱'))
BEGIN
exec sp_addextendedproperty 'MS_Description', '欄位說明', 'user', 'dbo', 'table', '資料表名稱', 'column', '欄位名稱'
END
ELSE
BEGIN
exec sp_updateextendedproperty 'MS_Description', '欄位說明', 'user', 'dbo', 'table', '資料表名稱', 'column', '欄位名稱'
END
Bike, 2016/6/29 下午 04:42:25
USE [master]
GO
/****** Object: StoredProcedure [dbo].[sp_who3] Script Date: 06/26/2008 09:40:54 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROCEDURE [dbo].[sp_who3]
(
@filter tinyint = 1,
@filterspid int = NULL
)
AS
SET NOCOUNT ON;
DECLARE @processes TABLE
(
spid int,
blocked int,
databasename varchar(256),
hostname varchar(256),
program_name varchar(256),
loginame varchar(256),
status varchar(60),
cmd varchar(128),
cpu int,
physical_io int,
[memusage] int,
login_time datetime,
last_batch datetime,
current_statement_parent xml,
current_statement_sub xml)
INSERT INTO @processes
SELECT sub.*
FROM
(
SELECT sp.spid,
sp.blocked,
sd.name,
RTRIM(sp.hostname) AS hostname,
RTRIM(sp.[program_name]) AS [program_name],
RTRIM(sp.loginame) AS loginame,
RTRIM(sp.status) AS status,
sp.cmd,
sp.cpu,
sp.physical_io,
sp.memusage,
sp.login_time,
sp.last_batch,
(
SELECT
LTRIM(st.text) AS [text()]
FOR XML PATH(''), TYPE
) AS parent_text,
(
SELECT
LTRIM(CASE
WHEN LEN(COALESCE(st.text, '')) = 0 THEN NULL
ELSE SUBSTRING(st.text, (er.statement_start_offset/2)+1,
((CASE er.statement_end_offset
WHEN -1 THEN DATALENGTH(st.text)
ELSE er.statement_end_offset
END - er.statement_start_offset)/2) + 1)
END) AS [text()]
FROM sys.dm_exec_requests er CROSS APPLY sys.dm_exec_sql_text(er.sql_handle) AS st
WHERE er.session_id = sp.spid
FOR XML PATH(''), TYPE
) AS child_text
FROM sys.sysprocesses sp WITH (NOLOCK) LEFT JOIN sys.sysdatabases sd WITH (NOLOCK) ON sp.dbid = sd.dbid
CROSS APPLY sys.dm_exec_sql_text(sp.sql_handle) AS st
) sub INNER JOIN sys.sysprocesses sp2 ON sub.spid = sp2.spid
ORDER BY
sub.spid
-- if specific spid required
IF @filterspid IS NOT NULL
DELETE @processes
WHERE spid <> @filterspid
-- remove system processes
IF @filter = 1 OR @filter = 2
DELETE @processes
WHERE spid < 51
OR spid = @@SPID
-- remove inactive processes
IF @filter = 2
DELETE @processes
WHERE status = 'sleeping'
AND cmd IN ('AWAITING COMMAND')
AND blocked = 0
SELECT spid,
blocked,
databasename,
hostname,
loginame,
status,
current_statement_parent,
current_statement_sub,
cmd,
cpu,
physical_io,
program_name,
login_time,
last_batch
FROM @processes
ORDER BY spid
RETURN 0;
查詢過濾sp_who3
DECLARE @Table TABLE(
spid int,
blocked int,
databasename varchar(256),
hostname varchar(256),
loginame varchar(256),
status varchar(60),
current_statement_parent xml,
current_statement_sub xml,
cmd varchar(128),
cpu int,
physical_io int,
program_name varchar(256),
login_time datetime,
last_batch datetime
)
INSERT INTO @Table EXEC sp_who3
SELECT *
FROM @Table
WHERE databasename= 'Leon' and cmd = 'AWAITING COMMAND'
and CAST(current_statement_parent AS nvarchar(max)) not LIKE '%AspNet_SqlCachePollingStoredProcedure%'
order by CAST(current_statement_parent AS nvarchar(max))
Reiko, 2013/5/3 上午 10:48:08