Already have an account? Sign in. By signing up, you agree to our Terms of Use and Privacy Policy. Enter the email address associated with your account. We'll send a magic link to your inbox. Email Address. All Sign in options. Enter a Email Address. Choose your interests Get the latest news, expert insights and market research, sent straight to your inbox. Newsletter Topics Select minimum 1 topic. The value 1 means true and 0 means false. Here we are using this function to validate a property, IsUniqueCnst on the table DimEmployee and based on the results, printing the statements.
Microsoft added some extra properties in this function and prefixed this function by ex. The Id here represents the id of an object that is being looked up in the database and property returns the property name.
Where, database represents the name of the database for which this function will return the property information and property denotes the property that needs to be returned.
There are a lot of database properties that this metadata function supports, you can go to the property name section over here to understand all these properties. In the following examples, we can retrieve information like database collation and status using the below properties. Where, ID means the id of the table or procedure, the column represents the name of the column and property here refers to the type of information that this function will return.
Like objectproperty and databaseproperty functions, there are too many properties to cover here, please refer here to learn about these properties. The following examples return properties to check if the column allows null values, is computed and is an identity column for three different columns in the DimEmployee table of AdventureWorksDW database.
As we can make out from the name, procid, this function returns the ID of the current procedure, by procedure here, I mean, stored procedure, user-defined function UDF , or a trigger. This function helps to return the T-SQL code of the object specified, it can be a constraint, stored procedure, function, view etc. This functions returns type nvarchar max. Where table represents table name and column is the name of the column whose length is returned by this function.
We can retrieve lengths of columns FirstName and Gender in table dimEmployee using the below examples. This function returns the specified part of the given object name. The examples shown below, return information like schema name and database name for DimEmployee table that we had used throughout this article in the AdventureWorksDW database. We can conclude the following observations from our exercise above on the metadata functions:. I might have skipped a few, but I am sure with the examples demonstrated above, you will be able to understand and apply them with ease in your SQL Server projects.
FROM sys. DimEmployee' , 'U' ;. ToList ; result. Name FROM sys. Name, schema: schema ; s. Name, schema: schema ; result. Append String. Open sqlConnection. Open ; sqlAdapter. ExecuteReader CommandBehavior. SchemaOnly ; sqlConnection. Close ; sqlAdapter. FillSchema ds, SchemaType. Precision AS [Precision] , P. Scale AS Scale , P. TheDev6 TheDev6 9 9 silver badges 17 17 bronze badges. S Krishna S Krishna 1, 12 12 silver badges 9 9 bronze badges. Sign up or log in Sign up using Google.
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