Merging changes synced from https://github.com/MicrosoftDocs/sql-docs-pr (branch live)

Author: fenxu

docs/big-data-cluster/use-prose-for-big-data-automation.md

@@ -5,7 +5,7 @@ description: This article describes how to use the PROSE Code Accelerator in Azu
 author: dphansen 
 ms.author: davidph
 ms.reviewer: mihaelab
-ms.date: 12/06/2018
+ms.date: 10/12/2020
 ms.topic: conceptual
 ms.prod: sql
 ms.technology: machine-learning-bdc
@@ -15,7 +15,10 @@ ms.technology: machine-learning-bdc
 
 [!INCLUDE[SQL Server 2019](../includes/applies-to-version/sqlserver2019.md)]
 
-PROSE Code Accelerator generates readable Python code for your data wrangling tasks. You can mix the generated code with your hand-written code in a seamless manner while working in a notebook within Azure Data Studio. This article provides an overview of how you can use the Code Accelerator.
+PROSE Code Accelerator generates readable Python code for your data wrangling tasks. 
+You can mix the generated code with your hand-written code while working in a notebook within Azure Data Studio.
+
+This article provides an overview of how you can use the Code Accelerator.
 
  > [!NOTE]
  > Program Synthesis using Examples, aka PROSE, is a Microsoft technology that generates human-readable code using AI. It does so by analyzing a user's intent as well as data, generating several candidate programs, and picking the best program using ranking algorithms. To know more about the PROSE technology, visit the [PROSE homepage](https://microsoft.github.io/prose/).
@@ -36,9 +39,11 @@ To get a general overview of Code Accelerator methods, see the [documentation](/
 
 ## Reading data from a file to a dataframe
 
-Often, reading files to a dataframe involves looking at the content of the file and determining the correct parameters to pass to a data-loading library. Depending on the complexity of the file, identifying the correct parameters may require several iterations.
+Reading files to a dataframe involves looking at the content of the file and determining the correct parameters to pass to a data-loading library.
+
+Depending on the complexity of the file, identifying the correct parameters may require several iterations.
 
-PROSE Code Accelerator solves this problem by analyzing the structure of the data file and automatically generating code to load the file. In most cases, the generated code parses the data correctly. In a few cases, you might need to tweak the code to meet your needs.
+PROSE Code Accelerator solves this problem by analyzing the structure of the data file and automatically generating code to load the file. Normally, the generated code parses the data correctly. In a few cases, you might need to tweak the code to meet your needs.
 
 Consider the following example:
 
@@ -85,9 +90,9 @@ Code Accelerator can generate code to load delimited, JSON, and fixed-width file
 
 ## Fixing data types in a dataframe
 
-It is common to have a pandas or pyspark dataframe with wrong data types. Often, this happens because of a few non-conforming values in a column. As a result, Integers are read as Float or Strings, and Dates are read as Strings. The effort required to manually fix the data types is proportional to the number of columns.
+It's common to have a pandas or pyspark dataframe with wrong data types. The incorrect datatype happens because of a few non-conforming values in a column. As a result, Integers are read as Float or Strings, and Dates are read as Strings. The effort required to manually fix the data types is proportional to the number of columns.
 
-You can use the `DetectTypesBuilder` in these situations. It analyzes the data, and rather than fixing the data types in a black-box manner, it generates code for fixing the data types. The code serves as a starting point. You can review, use, or modify it as needed.
+You can use the `DetectTypesBuilder` in these situations. It analyzes the data and generates code to fix the data types. The code serves as a starting point. You can review, use, or modify it as needed.
 
 ```python
 import prose.codeaccelerator as cx
@@ -105,7 +110,7 @@ To learn more, see the [documentation](/python/api/overview/azure/prose/fixdatat
 
 ## Identifying patterns in Strings
 
-Another common scenario is to detect patterns in a string column for the purpose of cleaning or grouping. For example, you may have a date column with dates in multiple different formats. In order to standardize the values, you might want to write conditional statements using regular expressions.
+p.
 
 
 |Row|Name                      |BirthDate      |

docs/database-engine/install-windows/install-sql-server-from-the-command-prompt.md

@@ -1,11 +1,8 @@
 ---
 title: "SQL Server installation - Command Prompt parameters"
 description: This article describes command parameters for SQL Server installation. You can specify features to install and configure.
-ms.custom: ""
-ms.date: 07/26/2019
 ms.prod: sql
 ms.technology: install
-ms.reviewer: ""
 ms.topic: conceptual
 helpviewer_keywords: 
   - "installing SQL Server, command prompt"
@@ -82,8 +79,11 @@ helpviewer_keywords:
   - "nodes [Faillover Clustering], command prompt"
   - "INSTALLSQLSHAREDDIR parameter"
 ms.assetid: df40c888-691c-4962-a420-78a57852364d
-author: MashaMSFT
-ms.author: mathoma
+author: markingmyname
+ms.author: maghan
+ms.reviewer: ""
+ms.custom: ""
+ms.date: 07/26/2019
 monikerRange: ">=sql-server-2016||=sqlallproducts-allversions"
 ---
 # Install SQL Server from the Command Prompt

docs/relational-databases/databases/rebuild-system-databases.md

@@ -184,11 +184,11 @@ ms.author: "sstein"
 
 10. Backup the **msdb** database.  
 
-##  <a name="RebuildTempdb"></a> Rebuild the Tempdb Database  
+##  <a name="RebuildTempdb"></a> Rebuild the tempdb Database  
 
 If the **tempdb** database is damaged and the database engine fails to start, you can rebuild  **tempdb** without the need to rebuild all system databases.
 
-1. Rename the current Tempdb.mdf and Templog.ldf files, if not missing. 
+1. Rename the current tempdb.mdf and templog.ldf files, if not missing. 
 1. Start [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)] from a Command Prompt by using the following command. 
 
    ```sql
@@ -203,7 +203,7 @@ If the **tempdb** database is damaged and the database engine fails to start, yo
 1. Connect to the server by using **sqlcmd**, and then use the following stored procedure to reset the status of the tempdb database.
 
    ```sql
-   exec master..sp_resetstatus Tempdb
+   exec master..sp_resetstatus tempdb
    ```
 
 1. Shut down the server by pressing CTRL+C in the command prompt window

docs/relational-databases/query-processing-architecture-guide.md

@@ -143,7 +143,7 @@ The basic steps that [!INCLUDE[ssNoVersion](../includes/ssnoversion-md.md)] uses
 - Arithmetic expressions, such as 1+1, 5/3*2, that contain only constants.
 - Logical expressions, such as 1=1 and 1>2 AND 3>4, that contain only constants.
 - Built-in functions that are considered foldable by [!INCLUDE[ssNoVersion](../includes/ssnoversion-md.md)], including `CAST` and `CONVERT`. Generally, an intrinsic function is foldable if it is a function of its inputs only and not other contextual information, such as SET options, language settings, database options, and encryption keys. Nondeterministic functions are not foldable. Deterministic built-in functions are foldable, with some exceptions.
-- Deterministic methods of CLR user-defined types and deterministic scalar-valued CLR user-defined functions (starting with [!INCLUDE[ssSQL11](../includes/sssql11-md.md)]). For more information, see [Constant Folding for CLR User-Defined Functions and Methods](/previous-versions/sql/2014/database-engine/behavior-changes-to-database-engine-features-in-sql-server-2014?view=sql-server-2014#constant-folding-for-clr-user-defined-functions-and-methods).
+- Deterministic methods of CLR user-defined types and deterministic scalar-valued CLR user-defined functions (starting with [!INCLUDE[ssSQL11](../includes/sssql11-md.md)]). For more information, see [Constant Folding for CLR User-Defined Functions and Methods](/previous-versions/sql/2014/database-engine/behavior-changes-to-database-engine-features-in-sql-server-2014#constant-folding-for-clr-user-defined-functions-and-methods).
 
 > [!NOTE] 
 > An exception is made for large object types. If the output type of the folding process is a large object type (text,ntext, image, nvarchar(max), varchar(max), varbinary(max), or XML), then [!INCLUDE[ssNoVersion](../includes/ssnoversion-md.md)] does not fold the expression.
@@ -690,7 +690,10 @@ The following examples illustrate which execution plans get removed from the pla
 * An execution plan is frequently referenced so that its cost never goes to zero. The plan remains in the plan cache and is not removed unless there is memory pressure and the current cost is zero.
 * An ad-hoc execution plan is inserted and is not referenced again before memory pressure exists. Since ad-hoc plans are initialized with a current cost of zero, when the [!INCLUDE[ssDEnoversion](../includes/ssdenoversion-md.md)] examines the execution plan, it will see the zero current cost and remove the plan from the plan cache. The ad-hoc execution plan remains in the plan cache with a zero current cost when memory pressure does not exist.
 
-To manually remove a single plan or all plans from the cache, use [DBCC FREEPROCCACHE](../t-sql/database-console-commands/dbcc-freeproccache-transact-sql.md). Starting with [!INCLUDE[ssSQL15](../includes/sssql15-md.md)], the `ALTER DATABASE SCOPED CONFIGURATION CLEAR PROCEDURE_CACHE` to clear the procedure (plan) cache for the database in scope.
+To manually remove a single plan or all plans from the cache, use [DBCC FREEPROCCACHE](../t-sql/database-console-commands/dbcc-freeproccache-transact-sql.md). [DBCC FREESYSTEMCACHE](../t-sql/database-console-commands/dbcc-freesystemcache-transact-sql.md) can also be used to clear any cache, including plan cache. Starting with [!INCLUDE[ssSQL15](../includes/sssql15-md.md)], the `ALTER DATABASE SCOPED CONFIGURATION CLEAR PROCEDURE_CACHE` to clear the procedure (plan) cache for the database in scope. 
+A change in some configuration settings via [sp_configure](system-stored-procedures/sp-configure-transact-sql.md) and [reconfigure](../t-sql/language-elements/reconfigure-transact-sql.md) will also cause plans to be removed from plan cache. You can find the list of these configuration settings in the Remarks section of the [DBCC FREEPROCCACHE](../t-sql/database-console-commands/dbcc-freeproccache-transact-sql.md#remarks) article. A configuration change like this will log the following informational message in the error log:
+
+> `SQL Server has encountered %d occurrence(s) of cachestore flush for the '%s' cachestore (part of plan cache) due to some database maintenance or reconfigure operations.`
 
 ### Recompiling Execution Plans
 

docs/ssms/tutorials/media/scripting-ssms/script-stored-procedure.png

@@ -1,15 +1,11 @@
 ---
 title: SSMS Script objects
-description: "Generate Transact-SQL (T-SQL) scripts for various objects found within SQL Server Management Studio (SSMS)."
+description: Generate Transact-SQL (T-SQL) scripts for various objects found within SQL Server Management Studio (SSMS).
 ms.prod: sql
 ms.technology: ssms
 ms.prod_service: sql-tools
 ms.topic: tutorial
 keywords: SQL Server, SSMS, SQL Server Management Studio, Scripts, Scripting
-author: markingmyname
-ms.author: maghan
-ms.reviewer: sstein
-ms.date: 03/13/2018
 helpviewer_keywords: 
   - "projects [SQL Server Management Studio], tutorials"
   - "source controls [SQL Server Management Studio], tutorials"
@@ -19,6 +15,10 @@ helpviewer_keywords:
   - "solutions [SQL Server Management Studio], tutorials"
   - "SQL Server Management Studio [SQL Server], tutorials"
   - "scripts [SQL Server], SQL Server Management Studio"
+author: markingmyname
+ms.author: maghan
+ms.reviewer: sstein
+ms.date: 03/13/2018
 ---
 
 # Script objects in SQL Server Management Studio
@@ -179,7 +179,7 @@ This section covers how to script out tables from your database. Use this option
 
 ## Script stored procedures
 
-In this section, you'll learn how to drop and create a stored procedure.  
+In this section, you learn how to drop and create a stored procedure.  
 
 1. Connect to a server that's running SQL Server.
 
@@ -191,7 +191,7 @@ In this section, you'll learn how to drop and create a stored procedure.
 
 5. Right-click the stored procedure **dbo.uspGetBillOfMaterials** > **Script Stored Procedure As** > **DROP and CREATE To** > **New Query Editor Window**:
 
-    ![Script stored procedures](media/scripting-ssms/scriptstoredprocedure.PNG)
+    ![Script stored procedures](media/scripting-ssms/script-stored-procedure.png)
 
 ## Script extended events
 

…scripting-ssms/scriptstoredprocedure.PNG …pting-ssms/scriptstoredprocedure-old.pngdocs/ssms/tutorials/media/scripting-ssms/scriptstoredprocedure.PNG renamed to docs/ssms/tutorials/media/scripting-ssms/scriptstoredprocedure-old.png docs/ssms/tutorials/media/scripting-ssms/scriptstoredprocedure.PNG renamed to docs/ssms/tutorials/media/scripting-ssms/scriptstoredprocedure-old.png

@@ -37,17 +37,16 @@ Removes all elements from the plan cache, removes a specific plan from the plan
   
 ![Topic link icon](../../database-engine/configure-windows/media/topic-link.gif "Topic link icon") [Transact-SQL Syntax Conventions](../../t-sql/language-elements/transact-sql-syntax-conventions-transact-sql.md)
 
-## Syntax
+## Syntax  
+Syntax for [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)]:
 
-Syntax for [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)] and [!INCLUDE[ssSOD](../../includes/sssodfull-md.md)]:
-
-```syntaxsql
+```sql
 DBCC FREEPROCCACHE [ ( { plan_handle | sql_handle | pool_name } ) ] [ WITH NO_INFOMSGS ]  
 ```  
 
 Syntax for [!INCLUDE[ssSDW](../../includes/sssdwfull-md.md)] and [!INCLUDE[ssPDW](../../includes/sspdw-md.md)]:
 
-```syntaxsql
+```sql
 DBCC FREEPROCCACHE [ ( COMPUTE | ALL ) ] 
      [ WITH NO_INFOMSGS ]   
 [;]  
@@ -89,7 +88,11 @@ DBCC FREEPROCCACHE [ ( COMPUTE | ALL ) ]
 ## Remarks  
 Use DBCC FREEPROCCACHE to clear the plan cache carefully. Clearing the procedure (plan) cache causes all plans to be evicted, and incoming query executions will compile a new plan, instead of reusing any previously cached plan. 
 
-This can cause a sudden, temporary decrease in query performance as the number of new compilations increases. For each cleared cachestore in the plan cache, the [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)] error log will contain the following informational message: " [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)] has encountered %d occurrence(s) of cachestore flush for the '%s' cachestore (part of plan cache) due to 'DBCC FREEPROCCACHE' or 'DBCC FREESYSTEMCACHE' operations." This message is logged every five minutes as long as the cache is flushed within that time interval.
+This can cause a sudden, temporary decrease in query performance as the number of new compilations increases. For each cleared cachestore in the plan cache, the [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)] error log will contain the following informational message:
+
+> `SQL Server has encountered %d occurrence(s) of cachestore flush for the '%s' cachestore (part of plan cache) due to 'DBCC FREEPROCCACHE' or 'DBCC FREESYSTEMCACHE' operations.` 
+
+This message is logged every five minutes as long as the cache is flushed within that time interval.
 
 The following reconfigure operations also clear the procedure cache:
 -   access check cache bucket count  

docs/ssms/tutorials/scripting-ssms.md

@@ -56,7 +56,11 @@ NO_INFOMSGS
 Suppresses all informational messages.  
 
 ## Remarks  
-Running DBCC FREESYSTEMCACHE clears the plan cache for the instance of [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)]. Clearing the plan cache causes a recompilation of all upcoming execution plans and can cause a sudden, temporary reduction in query performance. For each cleared cachestore in the plan cache, the [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)] error log contains the following informational message: " [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)] has encountered %d occurrence(s) of cachestore flush for the '%s' cachestore (part of plan cache) due to 'DBCC FREEPROCCACHE' or 'DBCC FREESYSTEMCACHE' operations." This message is logged every five minutes as long as the cache is flushed within that time interval.
+Running DBCC FREESYSTEMCACHE clears the plan cache for the instance of [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)]. Clearing the plan cache causes a recompilation of all upcoming execution plans and can cause a sudden, temporary reduction in query performance. For each cleared cachestore in the plan cache, the [!INCLUDE[ssNoVersion](../../includes/ssnoversion-md.md)] error log contains the following informational message: 
+
+>`SQL Server has encountered %d occurrence(s) of cachestore flush for the '%s' cachestore (part of plan cache) due to 'DBCC FREEPROCCACHE' or 'DBCC FREESYSTEMCACHE' operations.`
+
+ This message is logged every five minutes as long as the cache is flushed within that time interval.
 
 ## Result sets  
 DBCC FREESYSTEMCACHE returns: