有没有办法加快 SQL Server 管理对象对现有数据库的遍历速度？

发布于 2024-07-11 04:25:35 字数 558 浏览 5 评论 0原文

我目前正在使用 SMO 和 C# 遍历数据库来创建代表两个数据库各个方面的设置树，然后比较这些树以了解它们在何处以及如何不同。

问题是，对于 2 个大小合理的数据库，在本地抓取它们并收集我想要比较的表/列/存储过程信息需要几乎 10 分钟。

有没有比 SMO 更好的接口来以这种方式访问数据库？我不想包含任何额外的依赖项，但为了将速度提高 50%，我会承受这种痛苦。下面是我如何枚举表和列的示例。

        Microsoft.SqlServer.Management.Smo.Database db = db_in;
        foreach (Table t in db.Tables)
        {
            if (t.IsSystemObject == false)
            {

                foreach (Column c in t.Columns)
                {
                }                    
            }
        }

原文

I'm currently using SMO and C# to traverse databases to create a tree of settings representing various aspects of the two databases, then comparing these trees to see where and how they are different.

The problem is, for 2 reasonably sized database, it takes almost 10mins to crawl them locally and collect table/column/stored procedure information I wish to compare.

Is there a better interface then SMO to access databases in such a fashion? I would like to not include any additional dependencies, but I'll take that pain for a 50% speed improvement. Below is a sample of how I'm enumerating tables and columns.

        Microsoft.SqlServer.Management.Smo.Database db = db_in;
        foreach (Table t in db.Tables)
        {
            if (t.IsSystemObject == false)
            {

                foreach (Column c in t.Columns)
                {
                }                    
            }
        }

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╄→承喏 2024-07-18 04:25:35

尝试强制 SMO 一次读取所有必填字段，而不是在访问时查询。
有关详细信息，请参阅此博客

编辑：链接已失效但我发现 archive.org 上的页面。这是相关代码：

Server server = new Server();

// Force IsSystemObject to be returned by default.
server.SetDefaultInitFields(typeof(StoredProcedure), "IsSystemObject");

StoredProcedureCollection storedProcedures = server.Databases["AdventureWorks"].StoredProcedures;

foreach (StoredProcedure sp in storedProcedures) {
    if (!sp.IsSystemObject) {
        // We only want user stored procedures
    }
}

Try to force SMO to read all the required fields at once, instead of querying on access.
See this blog for more information

EDIT: Link is dead but I found the page on archive.org. Here's the relevant code:

Server server = new Server();

// Force IsSystemObject to be returned by default.
server.SetDefaultInitFields(typeof(StoredProcedure), "IsSystemObject");

StoredProcedureCollection storedProcedures = server.Databases["AdventureWorks"].StoredProcedures;

foreach (StoredProcedure sp in storedProcedures) {
    if (!sp.IsSystemObject) {
        // We only want user stored procedures
    }
}

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