How to configure the SQL Server with SQL assessment?
To specify database connection strings
- Right click on the unit test project in Solution Explorer and click SQL Server Test Configuration. ...
- Under Database Connections, you can do the following: Click the database connection against which you want to execute unit tests. ...
- Click OK to close the SQL Server Test Configuration -'<projectname>' dialog box.
Where can you Run SQL Server?
- For SQL Server 2019 on Windows SQL Server 2019 is not supported on Windows 8.1 or Windows Server 2012 R2.
- For SQL Server 2017 on Windows You can install the release version of SQL Server 2017 on Windows or a later version. ...
- For SQL Server 2016 You must apply SQL Server 2016 Service Pack 2 or a later update. ...
How to tell if a SQL Server instance is running?
- Start SQL Server Configuration Manager, using the instructions above.
- If the User Account Control dialog box appears, click Yes.
- In SQL Server Configuration Manager, in the left pane, click SQL Server Services.
How to configure SQL server authentication mode SQL Server?
- Open SQL management studio.
- Connect to the database server that stores the PetroVisor system and workspaces databases.
- From the object explorer right click on the server name (The parent of the listed items).
- Click on Properties, and the select the Security page.
What does it mean when a database is synchronized?
Database synchronization establishes data consistency between two or more databases, automatically copying changes back and forth. Harmonization of the data over time should be performed continuously. Pulling out data from source (master) database to destination (slave) is the most trivial case.
What is the difference between synchronous and asynchronous in SQL Server?
Synchronous – Code that runs one one line at a time. Each line of code is completed before the next one starts. If an external call is made then it is completed before the next line of code runs. Asynchronous – Code that is launched and runs separately from the initial code.
What does synchronized mean in SQL Server?
SQL Data Sync is a service that allows synchronizing data across multiple Azure SQL databases and on-premises SQL Server databases.
What is the purpose of synchronization content?
File synchronization ensures that two or more locations share the same data, occurs automatically, and prevents duplication of identical files. Version Control: This technique aims to provide synchronizing solutions for files that can be altered by more than one user at the same time.
Is SQL Server replication synchronous?
Once the secondary replica is available and connects with the Primary replica, it again starts Synchronous data commit. SQL Server maintains the log entries until the time secondary replica becomes available.
What is sync and async replication?
Most synchronous replication products write data to primary storage and the replica simultaneously. As such, the primary copy and the replica should always remain synchronized. In contrast, asynchronous replication products write data to the primary storage first and then copy the data to the replica.
What is synchronous and asynchronous in always on?
Most synchronous replication products write data to primary storage and the replica simultaneously. As such, the primary copy and the replica should always remain synchronized. In contrast, asynchronous replication products copy the data to the replica after the data is already written to the primary storage.
How do I sync two databases?
How to Automatically Synchronize Multiple Databases on Different SQL Server InstancesCreate a text file with the list of source and target databases and servers. 1.1 Launch any third-party text editor, for example, Notepad. ... Create a . bat file. ... Compare source and target databases via the command line.
What is table synchronization?
pt-table-sync synchronizes data efficiently between MySQL tables. This tool changes data, so for maximum safety, you should back up your data before using it.
What is the benefit of sync?
Syncing can let you boot them up exactly the way you want every time. When you sync, your master (perfect) snapshot of files gets compared to what is available on a target computer. If any files have changed, they get rewritten (or synced) with the files from the master collection. Nice, quick and easy!
Does syncing mean backup?
Backing up means to manually or automatically copy files from one location to another, usually from one physical drive to another, although it could also be to an online location. Syncing means to manually or automatically copy or delete files as needed to ensure that two locations have an identical set of files.
What is the full meaning of sync?
synchronizeSync, short for "synchronize," is a verb for making things work together. When you lip-sync, you are moving your mouth to exactly match someone else's words spoken or sung at precisely the same time.
How to manually synchronize SQL?
You can manually synchronize SQL databases by writing SQL scripts (INSERT, DELETE, UPDATE) or you can use third-party tools which come at a price. Third-party tools work by comparing data and generating synchronization SQL scripts, or you can set up synchronization logic and generate SQL scripts based on it.
What is the sync key in SQL Server?
If there is no primary key, you can choose a combination of columns. The Sync key is used to pair rows of the source with rows of the target.
What is SQL Database Studio?
The fourth tool, SQL Database Studio, works a little differently. It generates SQL scripts that contain synchronization logic, not changes. Performance is also great, because all work is done directly on the database server, so no data transfer between the database server and the synchronization tool is needed.
What are some alternatives to synchronization?
The user selects the source and the target database, but other alternatives could be a DB backup, a folder with SQL scripts, or even a connection to a source control system.
Does SQL Database Studio automatically sync?
Synchronization by automatically generated SQL is only provided by SQL Database Studio.
Does SQL script contain data differences?
The only difference compared to the previous method is that there is no data comparison, and the generated SQL script does not contain data differences, but synchronization logic. The generated script can be easily saved into a stored procedure, and can be run periodically (e.g., each night).
Can SQL scripts be saved?
The SQL script can be saved into stored procedure or run periodically as a job for SQL Server.
How to save synchronization settings?
You can also save the synchronization settings as a .bat file — to do this, click «SaveCommandLine» in the bottom left corner of the screen.
Where is the green arrow icon in Synchronization?
When the source and target are specified, click the green arrow icon situated at the center of the screen to configure the synchronization process:
How to create a new connection in DBForge?
After opening dbForge Studio, go to the «Database Sync» tab and create a new connection by clicking «New Connection»:
Which part of the window can you select which rows should be updated?
In the lower half of the window , you can select which specific rows should be updated, if this is needed. By default, all rows are selected:
Should all options from the «Database backup» group be unchecked?
In most cases, all options from the «Database backup» group should be unchecked.
Can you use DBForge Data Compare for SQL Server?
The example we looked at shows that with dbForge Data Compare for SQL Server, you can easily generate a database synchronization script. When compared to SSDT and SSIS, this tool is quicker and simpler to use as the configuration process requires fewer clicks.
What happens to synchronization as a company grows?
As the company grows, the number of servers and virtual environments increases, and the synchronization process becomes more complex.
How to create a new connection in DBForge?
After opening dbForge Studio for SQL Server, you’ll need to go to the "Database Sync" tab and create a new connection by clicking the "New Connection" button:
Do you need to connect to all SQL Server instances?
In a similar way, we need to connect to all necessary MS SQL Server instances (in our example, this will be achieved by creating a connection to the target server).
Is DBForge Studio faster than SSIS?
When compared with SSIS and Visual Studio Comparer, dbForge Studio for SQL Server is faster and easier to use, e.g., fewer clicks are required during the settings adjustment process.
How to achieve high availability in SQL Server?
In SQL Server, we can achieve high availability using SQL Server Always On Availability Groups feature. Let’s get a quick overview of SQL Server Always on Availability Groups before we go in deeper.
Where are transaction log records stored in primary replica?
In Primary replica, transaction log block is generated. These transaction log records get stored in the log cache of the primary replica
What happens if a secondary AG instance is down?
If Secondary AG instance is down, SQL Server will not be able to deliver transaction log records to the secondary replica.
What is SQL Server regular?
SQL Server regular performs an automatic checkpoint. It flushes log data into the disk for a primary replica. At the same time, it also copies the log records to Log Pool
How long does SQL Server wait for ping?
In SQL Server Availability groups checks the status of each replica based on a parameter Session-Timeout. By default, its value is 10 seconds. It shows that the Primary replica waits for 10 seconds for a ping response. If it does not receive any response from the secondary replica, SQL Server change Synchronous data commit to Asynchronous data commits as a temporary measure. Due to this change, users will not face any issues while executing DML. Users will receive commit acknowledgement as soon as it gets committed in Primary replica.
What is a replica in SQL Server?
Replica: Each availability group should contain two or more participating instance. Each participating instance is known as Replica in SQL Server Always On
What is secondary replica?
Secondary Replica: It hosts a copy of a database from the primary replica. It works as a failover target in case of any issues with the primary replica
How does Data Sync work?
Tracking data changes: Data Sync tracks changes using insert, update, and delete triggers. The changes are recorded in a side table in the user database. Note that BULK INSERT doesn't fire triggers by default. If FIRE_TRIGGERS isn't specified, no insert triggers execute. Add the FIRE_TRIGGERS option so Data Sync can track those inserts.
What is sync group?
A sync group is a group of databases that you want to synchronize. Data Sync uses a hub and spoke topology to synchronize data. You define one of the databases in the sync group as the hub database. The rest of the databases are member databases. Sync occurs only between the hub and individual members.
Why does Sync fail?
Sync can fail because the tracking table has a non-existing row from source due to the primary key change. Snapshot isolation must be enabled for both Sync members and hub. For more info, see Snapshot Isolation in SQL Server.
What is sync schema?
The Sync Schema describes which data is being synchronized. The Sync Direction can be bi-directional or can flow in only one direction. That is, the Sync Direction can be Hub to Member, or Member to Hub, or both. The Sync Interval describes how often synchronization occurs.
What is a private link in data sync?
The new private link (preview) feature allows you to choose a service managed private endpoint to establish a secure connection between the sync service and your member/hub databases during the data synchronization process. A service managed private endpoint is a private IP address within a specific virtual network and subnet. Within Data Sync, the service managed private endpoint is created by Microsoft and is exclusively used by the Data Sync service for a given sync operation. Before setting up the private link, read the general requirements for the feature.
How many endpoints can be in a sync group?
There may be up to 30 endpoints in a single sync group if there is only one sync group. If there is more than one sync group, the total number of endpoints across all sync groups cannot exceed 30. If a database belongs to multiple sync groups, it is counted as multiple endpoints, not one.
Why do we need a second database?
This approach minimizes the performance impact on your production workload. You can use Data Sync to keep these two databases synchronized.
What is a good tool to synchronize data across multiple databases and servers?
If you ask me what is a good tool which can help you to synchronize data across multiple databases and servers, I will suggest you to take a look at the DB Change Manager. It is a very powerful tool which can do quite a number of different tasks. Here are a few of your daily chores which you can rely on DB Change Manager to comply.
Can you download Embarcadero DB Change Manager?
You can download Embarcadero DB Change Manager from here. I am eagerly waiting for your feedback about this product.
Question
I am on a server and some of the database have (Synchronized after them), not 100% sure what this mean. I think this means high availability is being used. I believe a production database is being restored to node A. Anyway I log onto a server and see a restored version of a production database. I see Reporting Database with (Sychronized after it)
All replies
it means that this database is part of an always on Availability Group. The problem might be that his login is not in the server he is trying to access, or if it is a SQL Login, the sid is not the same as it is on the principal.
Source and Destination Have Very Similar Structures
Source and Destination Have Different Structures
- If the structures are different, synchronization is more complicated. This is also a more frequently recurring task. A common case is importing from one database into another. The most common case is when a piece of software needs to import data from another piece of software which is maintained by another company. Usually, imports need to run automatically on a scheduled basi…
Source and Destination Have The Same Or Very Similar Structures
- Using Manually Created SQL Scripts
The most straightforward and tedious solution is to manually write SQL scripts for synchronization. - Using the Data Compare Method
In this method, we can use a tool to compare between source and target data. The comparison process generates SQL scripts that apply the differences from the source database into the target database. There are a number of programs for data comparison and synchronization. These pro…
Performance Benchmarks
- Test Case
Two databases (A and B), each containing one table with 2,000,000 rows. The tables are in two different databases on same SQL Server. This test covers two extreme cases:1) The source table contains all 2,000,000 rows and the target table is empty. Synchronization needs to provide man… - Summary
From the results, it’s obvious that RedGate and Apex do not care if databases are on the same SQL server, because the synchronization algorithm is not dependent on SQL Server. SQL Database Studio uses native functions of SQL Server; therefore, the result is better when databases are on …
Source and Destination Have A Different Structure
- There are also situations when one wide table has to be synchronized into many small related tables. This example consists of one wide table SourceData which needs to be synchronized into small tables Continent, Country, and City. The scheme is given below. Data in SourceData could be like the one in the image below.
Comparing The Solutions
- Data synchronization consists of a sequence of INSERT, UPDATE, or DELETEcommands. There are multiple ways to create sequences of these commands. In this article, we looked at three options for creating synchronization SQL scripts. The first option is to create everything manually. It is feasible (but takes too much time), it requires complex understanding of SQL, and it’s difficu…
Establishing New Connection
Setting Up The Data Comparison Process
- When this is done, click «NewDataComparison» to configure the database comparison process on the source server and the target server: Fig.5.Selecting New Data Comparison The data comparison settings window will appear. As opposed to schema synchronization, the data synchronization process requires you to follow the configuration steps in the right order. Howev…
Data Synchronization Process
- Now, let’s look at the window’s central section. Here, you will need to ensure that all necessary objects are included into the synchronization process — you can do it by using the check-boxes next to the object names. The source objects are located at the left side, and the target objects at the right side: Fig.13. Data comparison window(2) In thi...
Generating A Synchronization Script
- To start the data synchronization process, click one of the buttons highlighted on the screenshot: Fig.20. Starting the process of data synchronization configuration In the «Output» tab, we’ll need to specify how the synchronization process will be carried out. In most cases, you'll need to either open the script directly in the internal editor or to save it to a file. In this particular case, we’ll go …
Comparing Data and Schema in MS SSMS
- In addition to dbForge Studio for SQL Server itself, we can use dbForge Compare Bundle for SQL Serverto compare data and database schemas. This tool can be used as an add-in for SQL Server Management Studio (SSMS). Let’s take a look at how you can do it. Fig.26. SSMS drop-down menu Right-click the needed database and choose whether to compare data or schemas. Next, …
General Relevance of SQL Server Database Changes Synchronization
SQL Server Schema Synchronization
- We’ll accomplish the task of database schema synchronization with the help of Schema Comparison Toolembedded in Devart’s dbForge Studio for SQL Server. free trials are available. To make things simple, let’s take a source server and a target server. In this example, we’ll be working with the SRV database, which is used to manage the MS SQL Server RDBM. This database can b…
Establishing The Connection
- After opening dbForge Studio for SQL Server, you’ll need to go to the "Database Sync" tab and create a new connection by clicking the "New Connection" button: The connection settings window will open, in which you should enter the necessary information to connect to an instance of MS SQL Server (the source server). As you can see, the ‘MFA Authentication’ option is now av…
Setting Up The Comparison Process
- To adjust the database schema comparison process, press ‘New Schema Comparison’: A window with schema comparison settings will appear. We’ll need to specify the following info in the "Source" pane in the left pane of the "Source and target" tab: 1. type 2. connection 3. source database In the right "Target" pane, we’ll specify: 1. type 2. connection 3. target database Keep i…
Comparing Database Schemas
- To start the database schema comparison process, click "Compare:" The database schema comparison settings window will be closed, and a window with the comparison process progress bar will appear instead: After the process is finished, take a look at the window. You can change the comparison settings by clicking "Edit Comparison" in the top left corner of the screen. To th…
Adjusting Synchronization Settings
- Now, let’s look at the window’s central top section. Here, you can choose the objects that need to be synchronized by selecting the corresponding checkboxes. Objects from the source are on the left side, while those from the target are on the right. Below, you can see the code of these objects placed in a similar manner. The comparison objects are divided into 4 groups, with the number o…
Generating A Synchronization Script
- To start generating the database schema synchronization script, press "Synchronize:" The script will be generated and shown in a new window: This script is the code we need to transfer the database schema changes from the source to the target. It can be executed against the target server or saved as a file for later use. Usually, this script should be saved in any case — this allo…
Conclusion
- As you can see, dbForge Studio for SQL Server allows to quickly generate a database schema synchronization script. When compared with SSIS and Visual Studio Comparer, dbForge Studio for SQL Server is faster and easier to use, e.g., fewer clicks are required during the settings adjustment process. Sources: 1. https://www.devart.com/dbforge/sql/studio/ 2. https://docs.mic…