The SQL Server Database Engine automatically modifies indexes whenever insert, update, or delete operations are made to the underlying data. Over time these modifications can cause the information in the index to become scattered in the database (fragmented). Fragmentation exists when indexes have pages in which the logical ordering, based on the key value, does... » read more
SYSDATETIME and SYSUTCDATETIME have more fractional seconds precision than GETDATE and GETUTCDATE. Sources: https://docs.microsoft.com/en-us/sql/t-sql/functions/sysdatetime-transact-sql?view=sql-server-ver15
Sources: https://dba.stackexchange.com/questions/110911/latin1-general-bin-performance-impact-when-changing-the-database-default-collati
Make sure database is setup for full text index. 2. Create Catalog Database -> Storage -> Full Text Catalogs -> New Full-Text Catalog 3. Define Full-Text Index Database -> Table -> Full-Text Index -> Define Full-Text Index Note: Make sure the table has at least one unique index. 4. Populate Catalog Database -> Table ->... » read more
CONTAINS FREETEXT Sources: https://docs.microsoft.com/en-us/sql/relational-databases/search/full-text-search?view=sql-server-ver15
Sources: https://docs.microsoft.com/en-us/sql/relational-databases/search/create-and-manage-full-text-indexes?view=sql-server-ver15 https://docs.microsoft.com/en-us/sql/relational-databases/search/populate-full-text-indexes?view=sql-server-ver15 https://stackoverflow.com/questions/2727911/how-can-i-know-when-sql-full-text-index-population-is-finished
By including nonkey columns, you can create nonclustered indexes that cover more queries. This is because the nonkey columns have the following benefits: They can be data types not allowed as index key columns. They are not considered by the Database Engine when calculating the number of index key columns or index key size. An... » read more
Index Scan retrieves all the rows from the table. Index Seek retrieves selective rows from the table. An scan or table scan is when SQL Server has to scan the data or index pages to find the appropriate records. A seek uses the index to pinpoint the records that are needed to satisfy the query.... » read more
Full Text Index vs Index Usually, when searching with a normal index, you can search only in a single field, e.g. “find all cities that begin with A” or something like that. Fulltext index allows you to search across multiple columns, e.g. search at once in street, city, province, etc. That might be an advantage... » read more