Skills SQL Server TSQL: Difference between revisions
| Line 98: | Line 98: | ||
== Datatypes == | == Datatypes == | ||
Int, VarChar(8000), DateTime | Int, VarChar(8000), nVarChar(4000), DateTime, Image, XML.. | ||
== Dynamic SQL == | == Dynamic SQL == | ||
Latest revision as of 22:01, 8 October 2024
Used at:...
Standard SQL
Select, Insert, Update, Delete, Truncate, Merge, tables, columns
Window functions
OVER (ORDER BY col1)
Group by/aggregation
WHERE clause / Having
CTE - Common Table Expressions
Used at:...
Use of SQL Server CTEs (Common Table Expressions).
Sorting
Order By
Desc - descending order
Sub-queries
Views
Joins
Inner Join
Left Join
Cartesian joins (cross-products) with no where clause
Indexes and keys
Primary keys
Foreign keys
Unique keys
Clustered indexes
Non-clustered indexes
Index Rebuilds
Index/table statistics refreshing
Stored Procedures
Used at:...
Pivot
Used at:...
Pivot function
Unpivot function
Union
Used at:...
Union
Union All
Datatypes
Int, VarChar(8000), nVarChar(4000), DateTime, Image, XML..
Dynamic SQL
Used at:...
Dynamic SQL
SQL Injection
Other
Cursors
BCP - Bulk copy protocol
Triggers