Hey I'm pretty new to databases and I want to create a diagram of the db I'm using with dbdiagram.io so that I can't understand the relationships better. What sort of script/file am I supposed to use to import the schema from sql server? I'm currently using azure data studio to query the database. I would prefer not to have to write out all the tables by hand.
Based on the docs and the DBML language, you need to generate a DBML script in the following format from your RDBMS of choice - in this case, SQL Server:
Table Users {
UserID integer [pk]
}
Table Posts {
PostID integer [pk]
UserID integer [ref: > Users.UserID] // many-to-one
}
Note that this DBML output is not intended to run on your RDBMS, SQL Server or otherwise - those platforms don't understand DBML. It is an example of output you need to generate from your RDBMS that you can paste directly into the left editor pane on dbdiagram.io, as demonstrated here.
This more complicated example - which uses DBML to build a diagram from SQL Server based on a subset of the tables in Stack Exchange Data Explorer (and which I described here) - took about 40 seconds to create.
You can build this syntax from a set of tables without having to hard-code each one using catalog views like sys.tables and sys.columns, but there are a lot of little things that you'll have to do to make it compatible with this web site, and that will be a project all its own. Basically, nothing in SQL Server exists to generate nice, tidy DBML for you.
If you don't want to use DBML but would rather use the Import feature on the web site, then you can generate traditional DDL scripts instead - from SQL Server, you can do this by right-clicking the database in SSMS / Object Explorer and using Script Database as > CREATE To. Azure Data Studio doesn't yet have this functionality, but you can use an extension.
Related
I have gone through many related SO threads and got some basic info.
Already generated DB diagram.
After that i am unable to find a button/option to generate SQL scripts (create) for all the tables in diagram.
"Generate script" button is disabled, even on clicking the table in diagram.
However i enabled the auto-generate option in tools->designer. But what to do with previous diagrams.
I just want an easy way to auto-generate such scripts (create/alter) and would be gud if i get auto-generated stored procs for insert/selects/update etc.
EDIT: I could do generate scripts for DB objects.
Now:
1. How to import DB diagram from another DB.
2. How to generate (and manage their change integrated with VS source control) routine stored-procs like insert, update and select.
Ok let me ask another way, can experts guide on the usual flow of creating/altering tables (across releases), creating stored-procs (are stored-procs the best way to go ?) and their change-management using SSMS design tools and minimal effort ?
You can go to the Object Explorer in SSMS, and right-click on your own database, and then pick "Tasks" > "Generate Scripts" to generate a whole bunch of scripts for your database.
Mind you - this is just a single set of CREATE statements, basically.
If you're using the visual table designer to modify your tables, you can also have it create a script to handle the changes you've made.
And in Visual Studio 2010 Professional or up, you can also take snapshots of databases, and compare two sets of your database and generate ALTER scripts from those .
Are there any automation tools to ease creation of tables and adding standard insert/select/update stored procs, rather than doing hand creation for a large number of tables ?
If i have 100 tables to create (and later ALTER) and their associated stored procs in SQL Server 2008, what is the most convenient way to do it ?
ADDED:
Are there tools to auto-generate nice class skeletons (with data fields) tied-up with corresponding tables ?
I am using C# .NET 4.0 in Visual studio 2010 and Microsoft SQL Server 2008.
We are starting off a new project from scratch, so it would be helpful to get tools for quick bootstrap from Design on paper to initial code.
Any other related suggestions are appreciated!
Use SSMS Database Diagrams to design you 100 tables because one only has to type the column name and can point and click for data type, primary key, nullability, foreign key, etc. Create a diagram for each functional grouping. When the design is done you can write a script which will write the SQL for the stored proc to do the insert/update for the tables.
As you create the script to write the script you could post your work here.
I've inherited a clunky and horribly un-documented site from a bad developer and am trying to get a look at the database schema. Unfortunately the web host is the worst I've ever dealt with and has no control panel capability for viewing the db schema or even exporting tables.
Is there any way that I can get a look at the schema via a SQL query (this would be with ASP + SQL Server)? My end goal here is to see what tables exist, possibly get a SQL dump of the vital tables, and then recreate the whole thing the right way.
The INFORMATION_SCHEMA schema is a good place to start:
SELECT * FROM INFORMATION_SCHEMA.TABLES
SELECT * FROM INFORMATION_SCHEMA.VIEWS
...and so on.
You might also want to have a look at using SMO, an API to get at the metadata in SQL Server.
I'm not sure if simple queries like
SHOW TABLES;
DESCRIBE table_name;
SHOW TABLE STATUS from table_name;
are valid in MS SQL. They would also be useful
SchemaSpy http://schemaspy.sourceforge.net/ is a great tool for analyzing existing databases. It generates html lists of table and constraints as well as a graphical representation of relationships
I would like to copy a table from one database to another. I know you can easily do the following if the databases are on the same SQL Server.
SELECT * INTO NewTable FROM existingdb.dbo.existingtable;
Is there any easy way to do this if the databases are on two different SQL Servers, without having to loop through every record in the original table and insert it into the new table?
Also, this needs to be done in code, outside of SQL Server Management Studio.
Yes. add a linked server entry, and use select into using the four part db object naming convention.
Example:
SELECT * INTO targetTable
FROM [sourceserver].[sourcedatabase].[dbo].[sourceTable]
If it’s only copying tables then linked servers will work fine or creating scripts but if secondary table already contains some data then I’d suggest using some third party comparison tool.
I’m using Apex Diff but there are also a lot of other tools out there such as those from Red Gate or Dev Art...
Third party tools are not necessary of course and you can do everything natively it’s just more convenient. Even if you’re on a tight budget you can use these in trial mode to get things done….
Here is a good thread on similar topic with a lot more examples on how to do this in pure sql.
SQL Server(2012) provides another way to generate script for the SQL Server databases with its objects and data. This script can be used to copy the tables’ schema and data from the source database to the destination one in our case.
Using the SQL Server Management Studio, right-click on the source database from the object explorer, then from Tasks choose Generate Scripts.
In the Choose objects window, choose Select Specific Database Objects to specify the tables that you will generate script for, then choose the tables by ticking beside each one of it. Click Next.
In the Set Scripting Options window, specify the path where you will save the generated script file, and click Advanced.
From the appeared Advanced Scripting Options window, specify Schema and Data as Types of Data to Script. You can decide from here if you want to script the indexes and keys in your tables. Click OK.
Getting back to the Advanced Scripting Options window, click Next.
Review the Summary window and click Next.
You can monitor the progress from the Save or Publish Scripts window. If there is no error click Finish and you will find the script file in the specified path.
SQL Scripting method is useful to generate one single script for the tables’ schema and data, including the indexes and keys. But again this method doesn’t generate the tables’ creation script in the correct order if there are relations between the tables.
Microsoft SQL Server Database Publishing Wizard will generate all the necessary insert statements, and optionally schema information as well if you need that:
http://www.microsoft.com/downloads/details.aspx?familyid=56E5B1C5-BF17-42E0-A410-371A838E570A
Generate the scripts?
Generate a script to create the table then generate a script to insert the data.
check-out SP_ Genereate_Inserts for generating the data insert script.
Create the database, with Script Database as... CREATE To
Within SSMS on the source server, use the export wizard with the destination server database as the destination.
Source instance > YourDatabase > Tasks > Export data
Data Soure = SQL Server Native Client
Validate/enter Server & Database
Destination = SQL Server Native Client
Validate/enter Server & Database
Follow through wizard
SQL Server 2005. Is there a sql query that will return a text field containing the same type of schema info as you would find in doing a right click table -> Script Table As -> Create To (or Alter To) from SQL Server Management Studio ?
I'm looking for a single/flat format that describes the entire table, including constraints, indices, etc.
I am aware of:
sp_help table_name
but that doesn't provide the single flat format I'm looking for. Ideally it would be in a scriptable format, such as the AlterTo result that could be executed against the server.
This is for a scheduled process that documents table schemas on a nightly basis for checking in to version control (SVN).
Not really. A table def is a collection of columns, constraints etc.
There is an SVN plugin that may help called ScriptDB4SVN. I've not used it personally, I'm going on hearsay.
Was searching the 'net again for an answer to this, and came across this SO question. It doesn't accurately capture all the same data as SQL Management Studios Create-to, but enough for my purposes (scripting the database structure for version control purposes).
There is no such command in SQL Server. This is primarily because the Scripting facilitiy is actually in SMO and not in SQL Server itself. There are a number of free console command-line tools that can do it that you could call via xp_CmdShell.
However, if you really want to do this from T-SQL, then you will need a script or stored procedure that enumerates all of the tables attributes, columns, column datatypes, defaults, nullabilty, etc. etc. and then reassembles it into a CREATE TABLE script. This is a Huge task. That's the bad news. The good news is that someone (Lowell Izaguirre) has already done this and posted it in this article (http://www.sqlservercentral.com/scripts/Miscellaneous/30730/) at SQLServerCentral.Com.
Enjoy.
Not really - you can either use C# (or VB.NET) and SMO (SQL Management Objects) to script out your database objects (tables and all), or you can use SQL to get the list of columns for a table:
SELECT * FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = 'Your Table Name here'
But I don't know of any easy way in SQL itself to create Create/Alter scripts for database objects, sorry.
Marc