. indexes and sys. For more information, see Sequential Keys. This feature is particularly useful in scenarios where data is frequently accessed in a sequential order, such as when retrieving records based on a time-stamp or a unique identifier. ALTER INDEX so_optimized ON dbo. MODEL_ID = pmc. 2 . CONSTRAINT. OFF Page locks are not used. This article is in two parts. The OPTIMIZE_FOR_SEQUENTIAL_KEY feature In order to use this feature you need to add the OPTIMIZE FOR SEQUENTIAL KEY = ON to the definition of the index: CREATE CLUSTERED INDEX [IDX_ARTICO_CLUSTERED_ID] ON [dbo]. This option automatically drops an existing index after recreating it, without the index being explicitly dropped. I'm trying to build the create index script for the existing indexes of my database. You can change your clustered primary key to Non-clustered Primary Key and can get the benefit of performance by reducing Pagelatch_EX. If you want to call the database function directly from . These do not have to be part of the key, they can be INCLUDE columns. Method 1: Use OPTIMIZE_FOR_SEQUENTIAL_KEY index option (SQL Server 2019 only) In SQL Server 2019, a new index option. off 페이지 잠금은 사용되지 않습니다. ; This Microsoft article lists all the properties that can be returned using the OBJECTPROPERTY() function, so refer to that link for the full list. Those can be multiple rows - so you need to handle this accordingly. 202102141704 Additional extensions Connection specification: Database name and version: SQL Server 2019 Driver name: information not availa. This is the filtering that occurs as a result of your predicate on. So any time an employee changes department, the employee_department table is updated, and a new row is inserted into the employee_department_history table. NET 6 (. In this case, 10 vCores. If you like what you see here, you'll love my advanced performance tuning training:take a look at the new OPTIMIZE_FOR_SEQUEN. NET MVC and Entity Framework which collects information about companies (company_id (PK), name, location, processes, etc). SQL Server 2019 CTP 3. This is the message. SQL Server does not support deferred foreign-key constraints so you need to add the row to the parent table before you add it in the table which references it. In order to use this feature you need to add the OPTIMIZE FOR SEQUENTIAL KEY = ON to the definition of the index: CREATE CLUSTERED INDEX [IDX_ARTICO_CLUSTERED_ID] ON [dbo]. Click on the "ADO. Combine two or more result sets into one set, including all duplicates. Deadlock detected and session 2's transaction (which hasn't made any changes) is terminated. using Microsoft. Both of these are backed by indexes and you can define a lot of the possible index options but not all (no included columns or filter predicates for example). 4k. If you have extra questions about this. 2 Download the Slides and Scripts; 1. Given this example's key takes up 22 bytes, an intermediate block can hold 367 entries. Command used to execute the stored procedure. sql","path":"QL_Kho. from t in db. Perhaps the server's caches are working particularly well. As I understand it, there should only ever be one row per execution. [Outturn] Script. C# Code Generator: ASP. 2. We keep the last 15 days worth of transactions in this table. Then, I have this article. You need to Re Start SQL Server services and try executing the select query again. SSMS 脚本总是会引用所有选项，即使设置为默认值以确保完全保真脚本，这有时也很痛苦. But, when I add the text for this index option into my database project in VS 2019 (16. Two answers. ASC )WITH (STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF, OPTIMIZE_FOR_SEQUENTIAL_KEY = OFF) ON [PRIMARY] GO As I understand. For that, right-click the database and choose the Restore Database option: Img. 3. This is not possible in the Syntax for disk-based tables. . ; Refresh Enumerated Lists updates all the values of dynamic enumerated lists. Y por último será una ventaja para aquellos campos que no tengan datos duplicados, sin embargo, si es un campo con valores que se repiten. Evaluate data. 0. Click on it then it will open a prompt at the top to save with encoding. Open Visual Studio and create a new project. [MyTable] DROP CONSTRAINT [DF_MyTable_MyDateTime] GO / Object: Table [dbo]. Fig. The index option OPTIMIZE_FOR_SEQUENTIAL_KEY is available from SQL Server 2019 and cannot replicate to SQL Server 2017. I get a conflict between my two tables. Now we need to create a class that will run this sql script. 您可以简单地删除该选项，该脚本. ConnectionString; return await Task. If you have extra questions about this. Sign in to vote. 1 Answer. It is fundamental and helps to troubleshoot any application issues. One imagines this could be an adaptation of Bw-Tree or Bz-Tree. David Browne - Microsoft 2020-10-23 23:10. Please confirm. Session 1 requests a U lock on the key, but is blocked by session 2. Extend the article: SQL - Interesting Queries as a series of articles: SQL - Interesting Queries (1) SQL - Interesting Queries (2) --- this article Introduction. Tuesday, October 29, 2019 11:34 PM. Create a new class in the same folder and call it: ExternalTablesMigration. b. The default is OFF,. You can both transform it in a JOIN or just apply the conditions directly to the main query (which I prefer). OPTIMIZE_FOR_SEQUENTIAL_KEY = { ON | OFF} Aplica-se a: SQL Server 2019 (15. Los índices nos permiten una mayor rapidez en la ejecución de las consultas tipo SELECT lo que sea WHERE. A clustered index always performs best when the database can merely append to it - otherwise, the DB has to do page splits. If we set TreatTSqlWarningsAsErrors to True these warnings become errors. It. ConnectionString; return await Task. This is method declaration inside contract/interface which will get implemented in the interface. It solves the performance issues due to concurrent inserts. Open Visual Studio 2019 and choose to Create a new project. And no errors, had a try catch block around logger code previously. However, these rely on variable-sized pages whereas the current. begin transaction create table dbo. x) 和更新版本。 指定是否允許頁面鎖定。 預設值為 on。 開啟 當存取索引時，允許頁面鎖定。 資料庫引擎會決定使用頁面鎖定的時機。 off 不會使用頁面鎖定。 optimize_for_sequential_key. 0. No. That appears to just be dbo. The Server Manager has also Tools menu to check the server Data Sources and Reports. NET Core page. Let us take a moment understand the behavior of this choice. SQL Server seems to go out of its way to remove a COLLATE restriction on a nvarchar column if the collation is the DB default. When you are making changes to an existing Non-Clustered index SQL Server provides a wide variety of options. Logs. These techniques will not prevent the contention or reduce latency, but. sql dev 0. We can use this option OPTIMIZE_FOR_SEQUENTIAL_KEY to control the rate at which new heads can request latch. Clustered ColumnStore index fragmentation. Specifies whether or. [Tbl] WITH (DROP_EXISTING = OFF, COMPRESSION_DELAY = 0) ON [PRIMARY] Now the size of the table is about 135MB. Build Pipeline. This is a better solution than Enums - in MySQL as well. NET Core 3. sort_in_tempdb. Thank you for your effort I appreciate it, but I have a couple of comments: in your design, you assigned the payments to shops but in my case, the shop can be rented today to customer number 1 and after year can be rented from customer 2 so how can I track the payment for the customers?, 2- cheque_in, why did you connect it to customers, not to payments details?? how can I get all the cheques. 3 in my VS 2019 project (running on . gitignore","path":". Sorted by: 1. At the end of this step if the cost is lower than 1. We would like to show you a description here but the site won’t allow us. Serilog provides diagnostic logging to files, the console, database and elsewhere. Please note that the following script will only work on the SQL Server 2019. I will try to…I have a very simple table: ID (integer primary key, ID increment on) field1 (large text field about 4KB per record) field2 (large text field about 4KB per record) I have about 1 million rows in this table. Microsoft. I have to…Step 9. There is no way to make both of those foreign key constraints ON DELETE CASCADE. x) and later. This is despite the plan being low enough cost to qualify for an early end to optimization activity due to 'good enough plan found'. See the Sequential Keys section of. I have a rather large table that has anywhere for 400 million to 700 million rows in it at a time. OPTIMIZE_FOR_SEQUENTIAL_KEY = { ON | OFF } Applies to: SQL Server 2019 (15. One list is for PIVOT part and the other for SELECT part where you cast you data types. On Studocu you find all the lecture notes, summaries and study guides you need to pass your exams with better grades. Part 2: SQL Trigger and Testing. Please sign in to rate this answer. gitignore. I created a table in SQL Server that has foreign keys in other tables but I forgot to add it to auto increment. In this article, we will learn about schedule background tasks using Time-Triggered Azure Functions. Learn how it works, when to use it, and what are the benefits and drawbacks. Now run the below nuget command . NET API services - Managed Push Notifications, Email Engine (Templates, loading, & sending), & Localization Abstractions - GitHub - shinyorg/apiservices: . Msg 155, Level 15, State 1, Line 17 'OPTIMIZE_FOR_SEQUENTIAL_KEY' is not a recognized CREATE TABLE option. Published 2020-06-10 by Kevin Feasel. Under Select a page, select Options. Thank you. This is achieved through the concept of joins in SQL Server. Two answers explain that this option is not supported by the compatibility level of the database and suggest to use a different version of SQL Server or a different syntax. Yeah. 2), I get the following error: SQL71627: The element Primary. This new flow control gives. 6 KB. SQL Server 2019 CTP 3. ALTER TABLE your_table ADD CONSTRAINT [PK_SLD] PRIMARY KEY CLUSTERED ( [SLD_ID] ASC. For a better understanding, this section. As you can see, table doesn't have Identity set on PK, so it has to be inserted manually. I'm not sure why this would speed up after the first execution. First, clustered indexes store data in order. The OPTIMIZE_FOR_SEQUENTIAL_KEY feature In order to use this feature you need to add the OPTIMIZE FOR SEQUENTIAL KEY = ON to the definition of the index: CREATE CLUSTERED INDEX [IDX_ARTICO_CLUSTERED_ID] ON [dbo]. CreaCodeX C# Code Generator. SQL-Server insert record get primary key back. Dear All, I am new in Azure Data Factory, and trying to pull data from on premise SQL Server database AdwentureWorks2019 Employee Table. Consider the following statement to create a table, note the default value for MyDateTime: USE [MY_DATABASE] GO ALTER TABLE [dbo]. objects,sys. g. You are right, the way to do this is with an INSTEAD OF trigger on the Location table. I use the same query to create a view. ID_TYPE = 'ITEM') INNER JOIN MODEL_TABLE pmc ON (ppi. using the Entity Framework Core Database First approach to generate entities in the. I understand foreign keys and referential integrity, but I'm hitting a problem like this bug where DELETEs can fail when they should succeed. เงื่อนไขเบื้องต้น. Run the following SQL scripts to remove the duplicated records from the CPWCAT table. To add, remove, or change the position of an index column, select the General page from the. Pastebin. The tables in Oracle and Azure are the exact same tables with the same data, same. In this article we will learn how to implement Serilog in. I have a query that joins all four tables to create another table. Improve this answer. , no matching to each other)The size of the table in this case is about 250MB. The ‘Optimize for Unknown’ feature follows the premise that trying to get a consistent execution time for a given set of parameters and re-using a stable execution plan is better than spending CPU to compile a special, unique flower of an execution plan every time a query runs. Using OBJECTPROPERTY() to Get Type of Object. Both of them will be inserted in the Image table. Key. That appears to just be dbo. Below are SQL/Stored procedure used in above videos: CREATE TABLE – Direct SQL (you can use this to create same table to try out examples): CREATE TABLE [dbo]. I’m also available for consulting if you just don’t have time for that and need to solve performance problems quickly. It solves the performance issues due to concurrent inserts. Quick plan (Search 1) In this step the optimizer uses more transformation rules. When a clustered index is dropped and re-created, SQL Server must rebuild the Non-Clustered indexes on that table. Contract | Interface. primary key clustered ( with (pad_index = off, statistics_norecompute = off, ignore_dup_key = off, allow_row_locks = on, allow_page_locks = on, **optimize_for_sequential_key = off**) on [primary] ) But when I use smo (powershell) I am unable to get this exact setting out when scripting the same tables. So, the solution is to remove the OPTIMIZE_FOR_SEQUENTIAL_KEY line ----- If the answer is the right solution, please click "Accept Answer" and kindly upvote it. That means that only one row can exist in each cluster with an index on the table. I have a ProfileAvatars table with 1000 rows that is the parent table for UserProfile table with 16,557,010 rows. Status)==true. A solution with a console app and a class library. 1. We have a query with a Key Lookup which is estimating thousands of rows per execution. I'm working on leasing shops system and here is my database for now: I have contracts these contracts have 2 types, lease for a duration (year) and the payment will be once, and the other type is lease for a duration but the payments will be monthly. Click “Test Connection” to verify the connectivity. When scripting via SSMS I get tables out with OPTIMIZE_FOR_SEQUENTIAL_KEY: CREATE TABLE. Change the "date" type to the "int" type, keeping only the year. Stored Procedure Execution. a transaction can update the identity value, but if it rollsback, then the identity value. 1 で追加された OPTIMIZE_FOR_SEQUENTIAL_KEY の効果を確認してみる. Method 1: Use OPTIMIZE_FOR_SEQUENTIAL_KEY index option (SQL Server 2019 only) In SQL Server 2019, a new index option ( OPTIMIZE_FOR_SEQUENTIAL_KEY) was added that can help resolve this issue without using any of the following methods. A user asks why they get an error when they try to create a table with OPTIMIZE_FOR_SEQUENTIAL_KEY = OFF in Azure SQL Database. CONSTRAINT PK_Emp PRIMARY KEY (EmpID) are identical, because CLUSTERED is the default for PRIMARY KEY constraints, [PRIMARY] is the default filegroup, ALLOW_PAGE_LOCKS defaults to ON, etc. This takes the form of an index option called. Every Non-Clustered index refers to the. See Behind the Scenes on OPTIMIZE_FOR_SEQUENTIAL_KEY for more information. 1 のデータベースエンジンの新機能として「OPTIMIZE_FOR_SEQUENTIAL_KEY」というインデックスのオプションが追加されました。. )with (pad_index = off, statistics_norecompute = off, ignore_dup_key = off, allow_row_locks = on, allow_page_locks = on, optimize_for_sequential_key = off) on. Where I'm stuck. It will change scheduling so that a thread which is more likely to finish within a quanta (4 ms) will get priority in the queue, hence reducing expensive context switching. 기본값은 off입니다. Data. Hi @KALYANA ALLAM, I want to click on Student say add a link called "Add Enrollments" and flow to Enrollment page but to add to current. Description. Python. 在索引操作期间替代 max degree of parallelism 配置. { PAD_INDEX = { ON | OFF } | FILLFACTOR = fillfactor | IGNORE_DUP_KEY = { ON | OFF } | STATISTICS_NORECOMPUTE = { ON | OFF } |. " So we just need to try out on a test environment as suggested in the comments above. David Browne - Microsoft 2020-10-23 23:10. MODEL_ID) where pmc. NET application. First, let's install the required packages, Dapper and Microsoft. Restore the DataConceptsOMS database using the DataConceptsOMS. Caching can improve the performance and scalability of an app, especially when the app is hosted by a cloud service or a server farm. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"Cinkie feedback fr","path":"Cinkie feedback fr","contentType":"directory"},{"name. After the simplification phase discussed in the last article, today we will speak about another fundamental step called Cardinality Estimation. Now today we will see how we can use the new feature which is available in SQL Server 2019 to optimize OPTIMIZE_FOR_SEQUENTIAL_KEY. 자세한 내용은 create index 페이지의 순차 키 섹션을 참조하세요. It is not on by default because it is intended for use only where significant last-page contention is observed. x) and later. [Tbl_MyTable] (. Time: 4 minutes to read or 12 minutes to code and run it. In SQL Server 2019, a new index option was added called OPTIMIZE_FOR_SEQUENTIAL_KEY that is intended to address an issue known as last. It is normally only worth it to add one of these at this stage, unless a join is on a unique value. It has an index option for this situation: OPTIMIZE_FOR_SEQUENTIAL_KEY. I think this is weird and I. 2 Choose Blazor Server App as Project Template. 5. INCLUDE([AccountId] WITH (STATISTICS_NORECOMPUTE = OFF, DROP_EXISTING = OFF, ONLINE = OFF, OPTIMIZE_FOR_SEQUENTIAL_KEY = OFF) ON [PRIMARY] GO ; Now I should also note that the DROP_EXISITING method is also faster when you must modify a Clustered index. OPTIMIZE_FOR_SEQUENTIAL_KEY in SQL Server 2019. Dennes Torres explains the 2019 option OPTIMIZE_FOR_SEQUENTIAL_KEY which. I would suggest doing some reading on index design, specifically how the UNIQUEIDENTIFIER data type. 23 SQL Server 2019 CTP3. NET API services - Managed Push Notifications, Email Engine (Templates, loading, &. In SQL Server,. Enabling Optimize for Sequential Key. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"QuanLyKho","path":"QuanLyKho","contentType":"directory"},{"name":"QL_Kho. config file to reflect the settings you opted for at Step 1. Second, clustered indexes are unique. The database server is running MSSQL Express 2016 version 14. In this case, 10 vCores. Choosing the database restore in SSMS. I’m offering a 75% discount to my blog readers if you click from here. tbl ( id bigint not null identity(1, 1) ,dt datetime2(3) not null ,constraint pk_id primary key clustered (id) with (pad_index = off, statistics_norecompute = off, ignore_dup_key = off, allow_row_locks = on, allow_page_locks = on, fillfactor = 100, optimize_for_sequential_key = on) on. Change the description of the Pipeline, ‘ Pipeline to SCALE a Synapse Dedicated SQL Pool ‘. github","path":". a transaction can update the identity value, but if it rollsback, then the identity value. But…{"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"ADMIN","path":"ADMIN","contentType":"directory"},{"name":"CONNECTION","path":"CONNECTION. I got an interview question, and found the solution is either interesting and similar to what I have in SQL - Interesting Queries (1). I need to set OPTIMIZE_FOR_SEQUENTIAL_KEY = ON for several of my PKs on tables in Azure SQL Databases. Try switching the INSERT statements in your stored procedure. In your case, it seems something means SQL Server either cannot generate the seek plan, or it appears to be more expensive than the scan plus spool plan. * from ITEM_TABLE ppi INNER JOIN ATTR_TABLE pa ON (ppi. With [Id] [int] IDENTITY (1,1) NOT NULL primary key the name of your key will get some kind of identifier, like PK__tblEStau__3214EC0769EA2D7C. x)) and Azure SQL Database. CREATE CLUSTERED COLUMNSTORE INDEX [PK_Tbl] ON [dbo]. Published 2020-06-10 by Kevin Feasel. MODEL_ID = pmc. SQL Server (and Azure SQL Database) support updating primary keys, it's just rarely a good idea. At this point, throughput falls off a cliff. Index fragmentation is the biggest trade-off when using a SQL Merge statement as the fragmentation with merge where 18 % while the delete-insert pattern only produced a fragmentation of 0. Enter the project name and choose the location of the project. MAXDOP = max_degree_of_parallelism sql server 2019 ctp 3. This query takes about 1 minute to execute. EF Core will look for a table named after the DbSet property (not its generic type) unless you use DataAnnotations or Fluent API to configure a different table name (as you eventually did). This option automatically drops an existing index after recreating it, without the index being explicitly dropped. @KayakFisher205 the point of a primary key is usually to identify the row in a stable way - it's problematic for a primary key to change in this way. O padrão é OFF. [ID] [int] IDENTITY(1,1) NOT NULL PRIMARY KEY CLUSTERED, ) ON [PRIMARY] GO. Miracle of OPTIMIZE_FOR_SEQUENTIAL_KEY. Install v15. It has nothing to do with the storage on disk, BUT is used by SQL-Server-Management-Studio as Default Clustered Index. SqlClient. OPTIMIZE_FOR_SEQUENTIAL_KEY = { ON | OFF } Applies to: SQL Server (Starting with SQL Server 2019 (15. BTW, you are scripting the table. It improves throughput for high-concurrency inserts into an ascending clustered index. You can use ALTER TABLE ADD <table_constraint> to add a unique or primary key constraint. Then you add in join columns and grouping columns. under the heading Demo: OPTIMIZE_FOR_SEQUENTIAL_KEY = OFF. Next, choose Blazor Server App as our project template. It also contains list of Access object for multiple users and group of users to access @Entity @Table(name = "reports") @EntityListeners(AuditingEntityListener. Open SQL Server Management Studio. Changes of index options do not replicate by default, so it works until a reinitialization. Erik Darling shows us how to enable the Optimize for Sequential Key setting on an index: Recently I blogged about last page contention solutions, and one thing I mentioned is that turning on OPTIMIZE_FOR_SEQUENTIAL_KEY doesn’t require you to rebuild an. I find you have Create New link in Enrollments index page, so I make some change in line 10. I did a quick test. We will see step-by-step instructions about CRUD operations in Asp. See here . This takes the form of an index option called OPTIMIZE_FOR_SEQUENTIAL_KEY. CREATE TABLE [dbo]. Notice that even a 1% FILLFACTOR won't stop leaf block splits since a block can only hold 8 rows. So in another way, we can treat this function for background processing jobs. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Introduction. Also data protection services generates the key, it’s not settable. OPTIMIZE_FOR_SEQUENTIAL_KEY is a new index option that aims to address throughput issues when a workload has a high number of concurrent inserts. The PK will then have 200 possible values as the first key instead of an IDENTITY. Tests","contentType":"directory"},{"name":"Business","path. 0. 20. Step 14. x)) and Azure SQL Database So, the solution is to remove the OPTIMIZE_FOR_SEQUENTIAL_KEY line If the answer is the right solution, please click "Accept Answer" and kindly upvote it. 1 Answer. To change the data type of a column, here is the code that worked. FROM table_name WHERE NOT EXISTS (SELECT 1 FROM view_name WHERE view_name. A single foreign key is created on each table relating referencing the parent primary key. Convert does not work for me. UPDATE. Everything is working ok from SSMS but when building the database project in Visual Studio using msbuild we get warnings (see code and warnings details below). You switched accounts on another tab or window. The most common pattern for handling historical data in an OLTP schema is to have a current table and a separate history table. 1 OPTIMIZE_FOR_SEQUENTIAL_KEY: New 2019 feature Dennes Torres explains the 2019 option OPTIMIZE_FOR_SEQUENTIAL_KEY which can alleviate the. STATISTICS_NORECOMPUTE: the default is OFF, so the second script unspecified has the same value. ID_TYPE = 'ITEM') INNER JOIN MODEL_TABLE pmc ON (ppi. x) e posterior. It is typically the delete and the updates in the stored procedures that are involved in the deadlock. Dennes Torres explains the 2019 option OPTIMIZE_FOR_SEQUENTIAL_KEY which can alleviate the pain of insert hotspots. No matter if we choose a non-unique index key, SQL Server will always make it unique by appending four bytes to the end of it. A solution with a console app and a class library. Features that rely on Primary. optimize_for_sequential_key = { on | off} 적용 대상: sql server 2019 (15. off 不使用行锁。 allow_page_locks = { on | off } 适用于：sql server 2008 (10. At that time we were between the devil and the deep sea: if. Step 12. NET Entity Data Model" option and click "Add". Optimal indexes for this query: CREATE INDEX mp_audit_idx_target_id_date_created ON. 1 a new index option was added called OPTIMIZE_FOR_SEQUENTIAL_KEY that is intended to address throughput issues that may occur. With [Id] [int] IDENTITY (1,1) NOT NULL primary key the name of your key will get some kind of identifier, like PK__tblEStau__3214EC0769EA2D7C. OPTIMIZE_FOR_SEQUENTIAL_KEY = { ON | OFF } Applies to: SQL Server 2019 (15. STATISTICS_NORECOMPUTE: the default is OFF, so the second script unspecified has the same value. This article will discuss about implementing caching in ASP. i would do this . Create a new class in the same folder and call it: ExternalTablesMigration. A: Yes, seems like it. 2. Open Visual Studio 2019 and choose to Create a new project. syntaxsql. Optimize query performance using appropriate strategies (that is, optimizer hints, additional indices, changing the query search arguments, or some combination thereof as appropriate). このオプションは、インデックスへの挿入. The system view sys. 您可以简单地删除该选项，该脚本. 1. No. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"Business. Finish the linked service setup for Azure SQL Database by filling the form below. For example, we have employee data spread across two or more. This means I need 6% free space in my intermediate block or a fill of 94% to hold the 4 entries. indexes. (Parameter 'Can't make a query on primary keys since number of primary keys columns in criteria is not matching the number of primary keys columns in this table') For the first schema, the sync is working fine and they both have the same configuration (basically the same configuration as provided here:. Like other . Msg 155, Level 15, State 1, Line 17 'OPTIMIZE_FOR_SEQUENTIAL_KEY' is not a recognized CREATE TABLE option. I'm getting information from the sys. protected override void OnModelCreating (ModelBuilder modelBuilder) { modelBuilder. It looks like the stored procedure is inserting into tbl1Recipients before inserting into tbl1SentEmails. x) 이상.