C# 超时过期的问题有时间吗

我使用C#、.NETFramework4.0和SQLServer2008R2 Express，并用它编写了一个Winforms程序

我得到了这个信息：

操作完成前已过超时时间，或者服务器没有响应

我搜索了一下，发现了一些线索，比如

事实：

• 我确实关闭了数据库连接
• 我已将超时设置为0
• 我确实应用了纠正框架

这是我的连接类（数据层）：

我这样使用它（业务层）：

但毕竟我做到了，为什么有时我仍然会遇到超时问题

我是否必须：

• 删除

  .ldf

  文件，因为它太大了
• 索引我的表
• 调整我的SQL语法

我是否应该调优此sql：

DECLARE @AfterUpdate table (
    NO_ORDRE_Temp int NOT NULL, 
    CODE_DEST_Temp varchar(50) NOT NULL,
    DATE_CLOTUR_Temp datetime NOT NULL, 
    FA_CLIENT_Temp varchar(20) NOT NULL,
    CODE_CLIENT_Temp varchar(20) NOT NULL,
    MODAL_MODE_Temp char(1) NOT NULL,
    MODAL_PORT_Temp bit NOT NULL,
    LIVRS_EXPRS_Temp bit NOT NULL,
    ENLEV_UNITE_Temp int NOT NULL,
    NBR_COLIS_Temp int NOT NULL,
    POID_Temp decimal(10, 2) NOT NULL,
    ENLEV_CREMB_Temp decimal(10, 2)  NULL,
    ENLEV_DECL_Temp decimal(10, 2)  NULL,
    TRANSPORTEUR_Temp varchar(5) NOT NULL,
    CODE_MAG_Temp varchar(50) NOT NULL,
    FACTURATION_Temp int NOT NULL,
    LIVRS_SIGN_Temp bit NOT NULL,
    LIVRS_SAMD_Temp bit NOT NULL,
    OBS_Temp varchar(max) NOT NULL,
    AGENCE_Temp varchar(max) NOT NULL,
    LIB_TOURNE_Temp varchar(50) NOT NULL,
    DATE_CLOTUR_REEL_Temp datetime NOT NULL,
    ADRESSE_Temp varchar(500) NOT NULL,
    REF_EXPED_Temp varchar(20) NOT NULL
  )  

UPDATE ORDRE 
SET STATUT_ORDRE = 2,  CHAUFFEUR = @CHAUFFEUR, FACTURATION= @CHAUFFEUR, DATE_CLOTUR_REEL = @DATE_CLOTUR_REEL
OUTPUT inserted.NO_ORDRE, inserted.CODE_DEST, inserted.DATE_CLOTUR, inserted.FA_CLIENT, inserted.CODE_CLIENT, inserted.MODAL_MODE, inserted.MODAL_PORT,inserted.LIVRS_EXPRS,inserted.ENLEV_UNITE,  inserted.NBR_COLIS,inserted.POID,inserted.ENLEV_CREMB,inserted.ENLEV_DECL, inserted.TRANSPORTEUR, inserted.CODE_MAG, inserted.FACTURATION, inserted.LIVRS_SIGN, inserted.LIVRS_SAMD, inserted.OBS, inserted.AGENCE, inserted.LIB_TOURNE, inserted.DATE_CLOTUR_REEL, inserted.ADRESSE, inserted.REF_EXPED INTO @AfterUpdate
WHERE STATUT_ORDRE = 1 AND (TRANSPORTEUR IN (SELECT ParsedString From dbo.ParseStringList(@Trans))) 

INSERT INTO LETTRE_VOIT 

OUTPUT inserted.NO_ORDRE

select rsVoit.NOID, NO_ORDRE_Temp, rsOrdre.CODE_DEST_Temp,rsOrdre.DATE_CLOTUR_Temp,rsOrdre.FA_CLIENT_Temp, rsOrdre.CODE_CLIENT_Temp, rsOrdre.MODAL_MODE_Temp, rsOrdre.MODAL_PORT_Temp,
CASE rsOrdre.MODAL_PORT_Temp
            WHEN 'false' THEN N'Pay'+CHAR(233)
            ELSE 'Du'
        END, 
rsOrdre.LIVRS_EXPRS_Temp,
CASE rsOrdre.LIVRS_EXPRS_Temp
            WHEN 'false' THEN 'Express'
            ELSE 'Long'
        END, 
  rsOrdre.ENLEV_UNITE_Temp, LIBELLE, NBR_COLIS_Temp,POID_Temp,ENLEV_CREMB_Temp,ENLEV_DECL_Temp, TRANSPORTEUR_Temp, CODE_MAG_Temp, FACTURATION_Temp, LIVRS_SIGN_Temp, LIVRS_SAMD_Temp, OBS_Temp, AGENCE_Temp,LIB_TOURNE_Temp,DATE_CLOTUR_REEL_Temp,REF_EXPED_Temp
from @AfterUpdate rsOrdre
inner join
(
  select CODE_DEST,MODAL_MODE, MODAL_PORT, LIVRS_EXPRS,ENLEV_UNITE,AGENCE,CODE_CLIENT,ADRESSE, ROW_NUMBER() over (order by CODE_DEST) as NOID
  from ORDRE
  group by CODE_DEST,MODAL_MODE,MODAL_PORT,LIVRS_EXPRS,ENLEV_UNITE,AGENCE,CODE_CLIENT,ADRESSE
) rsVoit on rsVoit.CODE_DEST = rsOrdre.CODE_DEST_Temp and rsVoit.MODAL_MODE = rsOrdre.MODAL_MODE_Temp
and rsVoit.MODAL_PORT = rsOrdre.MODAL_PORT_Temp and rsVoit.LIVRS_EXPRS = rsOrdre.LIVRS_EXPRS_Temp
and rsVoit.ENLEV_UNITE = rsOrdre.ENLEV_UNITE_Temp and rsVoit.AGENCE = rsOrdre.AGENCE_Temp
 and rsVoit.CODE_CLIENT = rsOrdre.CODE_CLIENT_Temp and rsVoit.ADRESSE = rsOrdre.ADRESSE_Temp

LEFT JOIN T_UNITE ON rsOrdre.ENLEV_UNITE_Temp = T_UNITE.NOID


order by rsVoit.NOID, NO_ORDRE_Temp

另一个SQL：

SELECT *, 
--FAWEB_CLIENT.RS_NOM AS RS_NOM_EXP,
--FAWEB_CLIENT.ADRESSE AS ADDR_EXP,
--FAWEB_CLIENT.CP AS CP_EXP,
--FAWEB_CLIENT.VILLE AS VILLE_EXP,
--FAWEB_CLIENT.TEL AS TEL_EXP,
--FAWEB_CLIENT.FAX AS FAX_EXP,

AGENCE.NOM AS RS_NOM_EXP,
AGENCE.ADRESSE AS ADDR_EXP,
AGENCE.CP AS CP_EXP,
AGENCE.VILLE AS VILLE_EXP,
AGENCE.TELP AS TEL_EXP,
'' AS FAX_EXP,


ORDRE.RS_NOM AS RS_NOM_DEST,
ORDRE.ADRESSE AS ADDR_DEST,
ORDRE.CP AS CP_DEST,
ORDRE.INSEE AS INSEE_DEST,
ORDRE.VILLE AS VILLE_DEST,
ORDRE.TEL AS TEL_DEST,
ORDRE.FAX AS FAX_DEST

FROM LETTRE_VOIT 
LEFT JOIN AGENCE ON AGENCE.NOM = LETTRE_VOIT.LIB_AGENCE AND AGENCE.NO_CLIENT = LETTRE_VOIT.CODE_CLIENT
--LEFT JOIN FAWEB_CLIENT ON FAWEB_CLIENT.CODE_CLIENT = LETTRE_VOIT.CODE_CLIENT
LEFT JOIN ORDRE ON ORDRE.CODE_DEST = LETTRE_VOIT.CODE_DEST AND ORDRE.CODE_CLIENT = LETTRE_VOIT.CODE_CLIENT
           AND ORDRE.NO_ORDRE = LETTRE_VOIT.NO_ORDRE
WHERE  (LETTRE_VOIT.NO_ORDRE IN (SELECT ParsedString From dbo.ParseStringList(@Trans)))

--AND ORDRE.DATE_CLOTUR = LETTRE_VOIT.DATE_CLOTURE

---

我必须：（1）删除

.ldf

-不！！这样做会完全杀死您的SQL Server数据库！！不要这样做！！（2） 是的！这是根本原因-你可能有低效的查询或次优的数据库结构-这些需要修复…谢谢你马克的回答，顺便说一句。ldf只是如果我想rollbak。因此，如果我不需要执行回滚…ldf文件对我来说并不重要。我只是分离数据库，删除ldf并附加它again@Soft8Stev不要那样做！相反，您可以将恢复模式设置为“简单”，并截断日志文件。

.ldf

文件对SQL Server始终至关重要！！！永远不要删除它！！！认真地要管理它的大小，您可以将数据库置于

Simple

恢复模式，并且您应该定期进行事务日志备份，以检查

.ldf

大小。。。。

DECLARE @AfterUpdate table (
    NO_ORDRE_Temp int NOT NULL, 
    CODE_DEST_Temp varchar(50) NOT NULL,
    DATE_CLOTUR_Temp datetime NOT NULL, 
    FA_CLIENT_Temp varchar(20) NOT NULL,
    CODE_CLIENT_Temp varchar(20) NOT NULL,
    MODAL_MODE_Temp char(1) NOT NULL,
    MODAL_PORT_Temp bit NOT NULL,
    LIVRS_EXPRS_Temp bit NOT NULL,
    ENLEV_UNITE_Temp int NOT NULL,
    NBR_COLIS_Temp int NOT NULL,
    POID_Temp decimal(10, 2) NOT NULL,
    ENLEV_CREMB_Temp decimal(10, 2)  NULL,
    ENLEV_DECL_Temp decimal(10, 2)  NULL,
    TRANSPORTEUR_Temp varchar(5) NOT NULL,
    CODE_MAG_Temp varchar(50) NOT NULL,
    FACTURATION_Temp int NOT NULL,
    LIVRS_SIGN_Temp bit NOT NULL,
    LIVRS_SAMD_Temp bit NOT NULL,
    OBS_Temp varchar(max) NOT NULL,
    AGENCE_Temp varchar(max) NOT NULL,
    LIB_TOURNE_Temp varchar(50) NOT NULL,
    DATE_CLOTUR_REEL_Temp datetime NOT NULL,
    ADRESSE_Temp varchar(500) NOT NULL,
    REF_EXPED_Temp varchar(20) NOT NULL
  )  

UPDATE ORDRE 
SET STATUT_ORDRE = 2,  CHAUFFEUR = @CHAUFFEUR, FACTURATION= @CHAUFFEUR, DATE_CLOTUR_REEL = @DATE_CLOTUR_REEL
OUTPUT inserted.NO_ORDRE, inserted.CODE_DEST, inserted.DATE_CLOTUR, inserted.FA_CLIENT, inserted.CODE_CLIENT, inserted.MODAL_MODE, inserted.MODAL_PORT,inserted.LIVRS_EXPRS,inserted.ENLEV_UNITE,  inserted.NBR_COLIS,inserted.POID,inserted.ENLEV_CREMB,inserted.ENLEV_DECL, inserted.TRANSPORTEUR, inserted.CODE_MAG, inserted.FACTURATION, inserted.LIVRS_SIGN, inserted.LIVRS_SAMD, inserted.OBS, inserted.AGENCE, inserted.LIB_TOURNE, inserted.DATE_CLOTUR_REEL, inserted.ADRESSE, inserted.REF_EXPED INTO @AfterUpdate
WHERE STATUT_ORDRE = 1 AND (TRANSPORTEUR IN (SELECT ParsedString From dbo.ParseStringList(@Trans))) 

INSERT INTO LETTRE_VOIT 

OUTPUT inserted.NO_ORDRE

select rsVoit.NOID, NO_ORDRE_Temp, rsOrdre.CODE_DEST_Temp,rsOrdre.DATE_CLOTUR_Temp,rsOrdre.FA_CLIENT_Temp, rsOrdre.CODE_CLIENT_Temp, rsOrdre.MODAL_MODE_Temp, rsOrdre.MODAL_PORT_Temp,
CASE rsOrdre.MODAL_PORT_Temp
            WHEN 'false' THEN N'Pay'+CHAR(233)
            ELSE 'Du'
        END, 
rsOrdre.LIVRS_EXPRS_Temp,
CASE rsOrdre.LIVRS_EXPRS_Temp
            WHEN 'false' THEN 'Express'
            ELSE 'Long'
        END, 
  rsOrdre.ENLEV_UNITE_Temp, LIBELLE, NBR_COLIS_Temp,POID_Temp,ENLEV_CREMB_Temp,ENLEV_DECL_Temp, TRANSPORTEUR_Temp, CODE_MAG_Temp, FACTURATION_Temp, LIVRS_SIGN_Temp, LIVRS_SAMD_Temp, OBS_Temp, AGENCE_Temp,LIB_TOURNE_Temp,DATE_CLOTUR_REEL_Temp,REF_EXPED_Temp
from @AfterUpdate rsOrdre
inner join
(
  select CODE_DEST,MODAL_MODE, MODAL_PORT, LIVRS_EXPRS,ENLEV_UNITE,AGENCE,CODE_CLIENT,ADRESSE, ROW_NUMBER() over (order by CODE_DEST) as NOID
  from ORDRE
  group by CODE_DEST,MODAL_MODE,MODAL_PORT,LIVRS_EXPRS,ENLEV_UNITE,AGENCE,CODE_CLIENT,ADRESSE
) rsVoit on rsVoit.CODE_DEST = rsOrdre.CODE_DEST_Temp and rsVoit.MODAL_MODE = rsOrdre.MODAL_MODE_Temp
and rsVoit.MODAL_PORT = rsOrdre.MODAL_PORT_Temp and rsVoit.LIVRS_EXPRS = rsOrdre.LIVRS_EXPRS_Temp
and rsVoit.ENLEV_UNITE = rsOrdre.ENLEV_UNITE_Temp and rsVoit.AGENCE = rsOrdre.AGENCE_Temp
 and rsVoit.CODE_CLIENT = rsOrdre.CODE_CLIENT_Temp and rsVoit.ADRESSE = rsOrdre.ADRESSE_Temp

LEFT JOIN T_UNITE ON rsOrdre.ENLEV_UNITE_Temp = T_UNITE.NOID


order by rsVoit.NOID, NO_ORDRE_Temp

SELECT *, 
--FAWEB_CLIENT.RS_NOM AS RS_NOM_EXP,
--FAWEB_CLIENT.ADRESSE AS ADDR_EXP,
--FAWEB_CLIENT.CP AS CP_EXP,
--FAWEB_CLIENT.VILLE AS VILLE_EXP,
--FAWEB_CLIENT.TEL AS TEL_EXP,
--FAWEB_CLIENT.FAX AS FAX_EXP,

AGENCE.NOM AS RS_NOM_EXP,
AGENCE.ADRESSE AS ADDR_EXP,
AGENCE.CP AS CP_EXP,
AGENCE.VILLE AS VILLE_EXP,
AGENCE.TELP AS TEL_EXP,
'' AS FAX_EXP,


ORDRE.RS_NOM AS RS_NOM_DEST,
ORDRE.ADRESSE AS ADDR_DEST,
ORDRE.CP AS CP_DEST,
ORDRE.INSEE AS INSEE_DEST,
ORDRE.VILLE AS VILLE_DEST,
ORDRE.TEL AS TEL_DEST,
ORDRE.FAX AS FAX_DEST

FROM LETTRE_VOIT 
LEFT JOIN AGENCE ON AGENCE.NOM = LETTRE_VOIT.LIB_AGENCE AND AGENCE.NO_CLIENT = LETTRE_VOIT.CODE_CLIENT
--LEFT JOIN FAWEB_CLIENT ON FAWEB_CLIENT.CODE_CLIENT = LETTRE_VOIT.CODE_CLIENT
LEFT JOIN ORDRE ON ORDRE.CODE_DEST = LETTRE_VOIT.CODE_DEST AND ORDRE.CODE_CLIENT = LETTRE_VOIT.CODE_CLIENT
           AND ORDRE.NO_ORDRE = LETTRE_VOIT.NO_ORDRE
WHERE  (LETTRE_VOIT.NO_ORDRE IN (SELECT ParsedString From dbo.ParseStringList(@Trans)))

--AND ORDRE.DATE_CLOTUR = LETTRE_VOIT.DATE_CLOTURE