Microsoft SQL Server
- Getting started with Microsoft SQL Server
- Awesome Book
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- Advanced options
- Aggregate Functions
- Alias Names in Sql Server
- Analyzing a Query
- Backup and Restore Database
- Basic DDL Operations in MS SQL Server
- bcp (bulk copy program) Utility
- BULK Import
- CASE Statement
- CLUSTERED COLUMNSTORE
- COALESCE
- Common Language Runtime Integration
- Common Table Expressions
- CTE with multiple AS statements
- Delete duplicate rows using CTE
- Employee Hierarchy
- Find nth highest salary using CTE
- Generate a table of dates using CTE
- Recursive CTE
- Computed Columns
- Converting data types
- CREATE VIEW
- cross apply
- Cursors
- Data Types
- Database permissions
- Database Snapshots
- Dates
- DBCC
- DBMAIL
- Delimiting special characters and reserved words
- Drop Keyword
- Dynamic data masking
- Dynamic SQL
- Dynamic SQL Pivot
- Encryption
- Export data in txt file by using SQLCMD
- File Group
- Filestream
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- Full-Text Indexing
- Generating a range of dates
- GROUP BY
- IF...ELSE
- Index
- In-Memory OLTP (Hekaton)
- Insert
- INSERT INTO
- Installing SQL Server on Windows
- Isolation levels and locking
- Join
- JSON in Sql Server
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- Limit Result Set
- Logical Functions
- Managing Azure SQL Database
- MERGE
- Microsoft SQL Server Management Studio Shortcut Keys
- Migration
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- Move and copy data around tables
- Natively compiled modules (Hekaton)
- NULLs
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- OVER Clause
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- Permissions and Security
- PHANTOM read
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- Queries with JSON data
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- Querying results by page
- Ranking Functions
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- Retrieve information about the database
- Retrieve Information about your Instance
- Row-level security
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- Schemas
- SCOPE_IDENTITY()
- SELECT statement
- Sequences
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- Spatial Data
- Split String function in Sql Server
- SQL Server Evolution through different versions (2000 - 2016)
- SQL Server Management Studio (SSMS)
- SQLCMD
- Stored Procedures
- Storing JSON in SQL tables
- String Aggregate functions in SQL Server
- String Functions
- Subqueries
- System database - TempDb
- Table Valued Parameters
- Temporal Tables
- The STUFF Function
- Transaction handling
- Transaction isolation levels
- Trigger
- TRY/CATCH
- UNION
- Use of TEMP Table
- User Defined Table Types
- Variables
- Views
- WHILE loop
- Window functions
- With Ties Option
Microsoft SQL Server Common Table Expressions CTE with multiple AS statements
Example
;WITH cte_query_1
AS
(
SELECT *
FROM database.table1
),
cte_query_2
AS
(
SELECT *
FROM database.table2
)
SELECT *
FROM cte_query_1
WHERE cte_query_one.fk IN
(
SELECT PK
FROM cte_query_2
)
With common table expressions, it is possible to create multiple queries using comma-separated AS statements. A query can then reference any or all of those queries in many different ways, even joining them.
