SQL Server Unique constraint for values in different columnI agree 100% with the above comments ...
A Unique index will be created automatically when you define a PRIMARY KEY or UNIQUE KEY constraints on the specified columns. In all cases, creating a Unique index on the unique data, instead of creating a non-unique index on the same data, is highly recommended, as it will help the SQ...
let me clarify my inquiry more, for Example i have unit with number 23*** repeat 3 times ( Duplicates ) but in column ( L ) have value True also false , how can make the excel highlight the row for unit 23***
I've had some Microsoft experience in the past but that is twenty years ago. I am picking this up as a side occupation for fun. Because it is fun when it works🙂 Kind regards, Bjarne Petersen vSwitchthen plug the physical adapters into a common switch. When yo...
We should follow certain best practices while designing objects in SQL Server. For example, a table should have primary keys, identity columns, clustered and non-clustered indexes, constraints to ensure data integrity and performance. Even we follow the best practices, and we might face issues suc...
the size of the files, assuming we configured the files for auto-grow. If the disk gets so full that the files cannot grow, SQL Server will stop generating versions. If that happens, any snapshot query that needs to read a version that was not generated due to space constraints will ...
Check constraints or partition function of source table ALTER TABLE with variable TableName ALTER vs UPDATE when creating a new column with default value. Alternate queries for MERGE Alternative for OR in WHERE clause Alternative for PIVOT Alternative of CURSOR in SQL to improve performance ?
Generic Multiple Constraints To "T" Generic property in non generic class Generics vs Dynamic Geometric Data Extraction from text file of STEP 3D model Get "Right" HResult (Error ID) from Exception Get 503 HTTP Status Code Get 64 Bit Registry Value Get a cellvalue from a DataGridView returns...
which makes sense. Constraints like primary key would produce duplicates otherwise in some cases, and ACID would break in other cases. I really hope that is clear, and while the documentation may need to be updated, this is not a bug in repeatable-read. To make the latter point clear: -...
A project manager needs a new SQL Server. What do you ask her/his? *** I want the DBA to ask questions like: How big will the database be? (whether we can add the database to an existing server) How critical is the database? (about clustering, disaster recovery, high availability...