MS SQL Server是微軟公司研發(fā)的數(shù)據(jù)庫管理系統(tǒng),SQL Server是一個可擴展的、高性能的、與WindowsNT有機結(jié)合的,為分布式客戶機/服務(wù)器所設(shè)計的數(shù)據(jù)庫管理系統(tǒng),提供基于事務(wù)的企業(yè)級信息管理系統(tǒng)方案。
SQL Server數(shù)據(jù)庫故障情況&分析:
SQL Server數(shù)據(jù)庫經(jīng)常出現(xiàn)一個比較常見故障:附加數(shù)據(jù)庫時候提示“附加數(shù)據(jù)庫錯誤823”。這個時候如果有數(shù)據(jù)庫備份,只需要還原備份即可。如果沒有備份或者備份的時間間隔太久,或者備份數(shù)據(jù)不可用,這個時候就需要對數(shù)據(jù)庫進(jìn)行數(shù)據(jù)恢復(fù)的操作。
一般情況下SQL Server數(shù)據(jù)庫出現(xiàn)報錯信息為“823”的故障有三種可能:
1、數(shù)據(jù)庫的物理頁面損壞;
2、校驗值損壞導(dǎo)致數(shù)據(jù)庫頁面無法被識別;
3、異常斷電、文件系統(tǒng)損壞導(dǎo)致的數(shù)據(jù)庫頁面丟失。
SQL Server數(shù)據(jù)庫數(shù)據(jù)恢復(fù)過程:
1、嘗試附加并修復(fù)數(shù)據(jù)庫,對數(shù)據(jù)庫進(jìn)行附加時候提示“823”錯誤。
北亞數(shù)據(jù)恢復(fù)——SQL Server數(shù)據(jù)庫數(shù)據(jù)恢復(fù)
2、使用北亞自研的MS SQL文件檢測工具對數(shù)據(jù)庫進(jìn)行檢測。
北亞數(shù)據(jù)恢復(fù)——SQL Server數(shù)據(jù)庫數(shù)據(jù)恢復(fù)
3、計算并修改SQL Server數(shù)據(jù)庫錯誤數(shù)據(jù)頁的校驗值。
4、重新附加SQL Server數(shù)據(jù)庫,附加數(shù)據(jù)庫成功。
北亞數(shù)據(jù)恢復(fù)——SQL Server數(shù)據(jù)庫數(shù)據(jù)恢復(fù)
5、使用dbcc檢測數(shù)據(jù)庫。
北亞數(shù)據(jù)恢復(fù)——SQL Server數(shù)據(jù)庫數(shù)據(jù)恢復(fù)
6、修復(fù)上述錯誤,再一次使用dbcc檢測數(shù)據(jù)庫。
北亞數(shù)據(jù)恢復(fù)——SQL Server數(shù)據(jù)庫數(shù)據(jù)恢復(fù)
SQL Server數(shù)據(jù)庫修復(fù)結(jié)果:
再次使用dbcc檢測數(shù)據(jù)庫,發(fā)現(xiàn)已經(jīng)沒有任何錯誤提示,重新附加數(shù)據(jù)庫也沒有出現(xiàn)任何報錯,成功附加數(shù)據(jù)庫。由用戶對數(shù)據(jù)庫進(jìn)行查詢、驗證,最終確認(rèn)所有數(shù)據(jù)完整恢復(fù)。
北亞數(shù)據(jù)恢復(fù)——SQL Server數(shù)據(jù)庫數(shù)據(jù)恢復(fù)
審核編輯黃昊宇
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