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Technical Article

Retrieve column attributes

Given database, owner, table, and column names, this procedure returns one from among several column attributes such as type definition, defaults, and other types of constraints.  E.g., to retrieve the type definition of the 'pubs' database's 'author.address':DECLARE @attrib VARCHAR (500)      , @msg    VARCHAR (8000)EXEC p_get_column_attribute 'TYPEDEF'              […]

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2002-07-24

127 reads

Technical Article

Count # occurrences of one string inside another

Scalar function 'f_contains' counts the number of times the first argument occurs within the second argument.Given:  @arg1, @arg2 (both VARCHAR), @cnt INTSELECT @cnt = dbo.f_contains (@f_search_for = @arg1                            , @f_container  = @arg2)

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2002-07-22

380 reads

Technical Article

Slice out string from within specified delimiters

Scalar function 'f_delimited' slices out of a passed-in string, from a specified position inside the string, that segment of it which is delimited on one or both sides by a specified delimiter.Example:  Print out a segment of a 'syscomments.text' column for a stored procedure 'p_proc', representing a line of code (i.e., the segment of 'syscomments.text' […]

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2002-07-22

109 reads

Technical Article

String-search on objects in a specified database

Procedure 'p_find_string' allows users to specify any database on a server in searching for a specified character string.  Supported for string-searching:  table columns, view columns, trigger, function, and procedure code.  Produces a report showing: object type, owner, object name, column id (for tables and views) or what line number (for triggers, functions, and procedures), and […]

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2002-07-22

140 reads

Technical Article

Scalar Function to Determine Age at a Given Date

This function was written to supplant cumbersome age-at calculations.  To execute, simply set a local INT variable equal to the output of the function.  For example, the following, given my birthdate, computes my own age:    DECLARE @age_at INT    SET @age_at = dbo.f_age_at ('2/16/1954', GETDATE ())

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2002-05-09

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Question of the Day

The Updated Columns List

I have this table in SQL Server 2022:

CREATE TABLE CustomerLarge
  (CustomerID               INT NOT NULL IDENTITY(1, 1) CONSTRAINT CustomerLargePK PRIMARY KEY CLUSTERED
 , CustomerName             VARCHAR(20)
 , CustomerContactFirstName VARCHAR(40)
 , CustomerContactLastName  VARCHAR(40)
 , Address                  VARCHAR(20)
 , Address2                 VARCHAR(20)
 , City                     VARCHAR(20)
 , CountryCode              CHAR(3)
 , Postal                   VARCHAR(20)
)
GO
If I check the columns_updated() function return in a trigger, what is the data returned?

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