本主題提供了 SQL Server 變更追蹤的概觀,並描述可在 SQL Server 資料庫與 SQL Server Compact 資料庫之間執行雙向同步處理的主控台應用程式。如果伺服器是執行 SQL Server 2008,建議您使用 SQL Server 變更追蹤功能。如果伺服器執行不同的資料庫,請參閱 HOW TO:使用自訂變更追蹤系統。
In SQL Server, you can use IDENTITY to define a column with auto increment values. It auto generates a new unique number when inserting a new record into the table. Here is the syntax: IDENTITY [ (seed , increment) ] You must specify both seed and increment values in which: seed is t...
Let us go through these steps to connect Oracle to Snowflake in detail. Step 1: Extract data from Oracle to CSV using SQL*Plus SQL*Plusis a query tool installed with every Oracle Database Server or Client installation. It can be used to query and redirect the result of an SQL query to...
InSQL Server,Constraintsare rules that regulate entering the data into the necessary columns. Constraints enforce the accuracy of data and how that data match business requirements. Also, they make the data reliable to end-users. That’s why it is critical to identify correct Constraints during t...
下列的完整程式碼範例包含先前所述的程式碼範例,以及其他的程式碼,可用來執行同步處理。此範例需要Utility類別,詳情請參閱Sync Services 的公用程式類別 HOW-TO 主題。 C#複製 usingSystem;usingSystem.IO;usingSystem.Text;usingSystem.Data;usingSystem.Data.SqlClient;usingMicrosoft.Synchronization;usingMicrosoft....
To restore data without deleting previous data (incremental backups): mysqldump -u [username] -p [database] --no-create-info > dump.sql Migrate MySQL Servers in 2 Steps Start For Free Step 2: Copy the Database Dump to the Destination Server Once you have created the dump as per ...
partitioning as well. We can use this feature to update only the partition that we require to update. By default, Auto Create Incremental is disabled for individual databases. You can go throughIntroducing SQL Server Incremental Statistics for Partitioned Tablesto get more knowledge on incre...
Next, by analyzing the process of how a Flink SQL becomes a Flink job, we introduce how the job is optimized. After the Flink engine receives an SQL text, it parses it into a SqlNode using SqlParser. The Flink engine queries the metadata information in the catalog to verify the tables...
If the table name is recorded in the query result, the DRS incremental synchronization requirements can be met. If the requirements are not met, run the following SQL statement to enable all column supplemental logging at the table level: ...
For a MySQL incremental synchronization task, you need to specify the start point on the Set Synchronization Task page. The source database logs of the task are obtained