Scripts

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

135 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

387 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

117 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

146 reads

Technical Article

Using UDFs to avoid cursors

Let's say you have 2 tables: a Contacts table and a PhoneNumbers table (which stores all the phone numbers for each contact).  You are asked to write a query that returns each contact's name and a comma-delimited string of phone numbers for each contact, something like this:FirstName    LastName   PhoneNumbers---------    --------   --------------------------John      […]

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2002-07-22

1,032 reads

Technical Article

Checks Triggers status on User- Databases.

Introduction:SQL Server 7.0 introduced a new class of functions that return a wide range of property information that isn't readily available in SQL Server 6.5 and earlier versions. These functions have three general classes: TypeProperty, which returns information about a data type; ObjectProperty, which returns information about objects in the current database; and ColumnProperty, which […]

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2002-07-19

140 reads

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Question of the Day

The Max PK Length

If I create a multiple column Primary Key constraint, what is the most number of bytes I can include in the constraint?

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