Question

出于某种原因，我们的构建系统给出了一个错误，指出在我要启用它的表上已启用更改跟踪。

ALTER TABLE [dbo].[MyTable]
ENABLE CHANGE_TRACKING  
WITH (TRACK_COLUMNS_UPDATED = OFF)

我进行了搜索，但无法找到像IF EXISTS这样的内容，先说明是否启用了它，如果未启用，则运行ALTER命令。

Answer 1

我想我找到了它：

IF NOT EXISTS (SELECT 1 FROM sys.change_tracking_tables 
               WHERE object_id = OBJECT_ID('dbo.CUSTOMER'))
BEGIN
     ALTER TABLE dbo.CUSTOMER
     ENABLE CHANGE_TRACKING
     WITH (TRACK_COLUMNS_UPDATED = OFF)
END

https://www.mssqltips.com/sqlservertip/3316/how-to-enable-change-tracking-in-a-sql-server-database-project/

Answer 2

步骤1：执行以下脚本，并选择[结果为文本]选项（Ctrl + T）

    IF CONVERT(INT, PARSENAME(CONVERT(NVARCHAR(128), SERVERPROPERTY('ProductVersion')), 4)) >= 10 -- 10 = SQL2008
BEGIN
    EXEC sp_executesql N'SELECT * FROM sys.change_tracking_databases db WHERE db.database_id = DB_ID(); ' -- sys.change_tracking_databases is available in SQL2008+
    IF @@ROWCOUNT = 0
    BEGIN 
        RAISERROR('CHANGE TRACKING is not enabled at database level.', 16, 1);
        RETURN;
    END
END

然后在下面的查询中将打印所有未启用更改跟踪的表

SELECT    --N'PRINT ''Enable CHANGE_TRACKING on ' + full_table_name + ''';'
         N'ALTER TABLE ' + full_table_name + N' ENABLE CHANGE_TRACKING' + CHAR(13) + CHAR(10) 
        --+ N'GO'
FROM (
    SELECT  QUOTENAME(s.name) + '.' + QUOTENAME(t.name) AS full_table_name,
            s.name AS schema_name, t.name AS table_name
    FROM    sys.key_constraints x
    JOIN    sys.tables t ON x.parent_object_id = t.object_id
    left JOIN   sys.change_tracking_tables
            on t.object_id = sys.change_tracking_tables.object_id
    JOIN    sys.schemas s ON t.schema_id = s.schema_id 
    WHERE   x.[type] = 'PK' and sys.change_tracking_tables.object_id is null
) y
ORDER BY schema_name, table_name
    enter code here

如何检查特定表上是否启用了更改跟踪

2 个答案: