So, I created a view to get the list of tables (there's a ref table that holds that info), then I created a stored procedure to . create a temp table, using cursors, check each table in the view for the phone number, using sql concatenation. If a record is found, insert it into the temp table. return the rows from the temp table. This process will work effectively if you are inserting huge sets and the size of the initial data in the table is not too huge. Can you please expand your question to include the rest of the context of the problem. EDIT. Now that I have some more context here is another way you can go about it: Do the bulk insert into a temp table. Pinal Dave is a SQL Server Performance Tuning Expert and an independent consultant. He has authored 12 SQL Server database books, 30 Pluralsight courses and has written over 5000 articles on the database technology on his blog at a https://blog.sqlauthority.com. Along with 16+ years of hands on experience he holds a Masters of Science degree and a number of database certifications.

Execute the statement CREATE TABLE #RowsToDelete(ID INT PRIMARY KEY) Use a bulk load to insert keys into #RowsToDelete; Execute DELETE FROM myTable where Id IN (SELECT ID FROM #RowsToDelete) Execute DROP TABLE #RowsToDelte (the table will also be automatically dropped if you close the session) (Assuming Dapper) code example: conn. I want to use SqlBulkCopy to insert lots of files, I can bulk insert into the FileTable, but SqlBulkCopy won´t tell me the inserted stream_id values. SqlBulkCopy doesn't allow to retrieve inserted identity values or any other values. Solution 1. You can find on the web a lot of code snippets to insert into a temporary table using SqlBulkCopy. .

Learn Entity Framework Entity Framework Extensions by example. Entity Framework Extensions Extend your DbContext with high-performance batch and bulk operations This sample will not run unless you have created the work tables as described in Bulk Copy Example Setup. This code is provided to demonstrate the syntax for using SqlBulkCopy only. If the source and destination tables are in the same SQL Server instance, it is easier and faster to use a Transact-SQL INSERT ...

I want to use SqlBulkCopy to insert lots of files, I can bulk insert into the FileTable, but SqlBulkCopy won´t tell me the inserted stream_id values. SqlBulkCopy doesn't allow to retrieve inserted identity values or any other values. Solution 1. You can find on the web a lot of code snippets to insert into a temporary table using SqlBulkCopy. There is a great discussion of this on StackOverflow that covers many approaches. The one I prefer for SQL Server 2008+ is to use table-valued parameters.This is essentially SQL Server's solution to your problem--passing in a list of values to a stored procedure. You need not specify the column(s) name in the SQL query if you are adding values for all the columns of the table. But make sure the order of the values is in the same order as the columns in the table. Following is the SQL INSERT INTO syntax − INSERT INTO TABLE_NAME VALUES (value1,value2,value3,...valueN); Example

Execute the statement CREATE TABLE #RowsToDelete(ID INT PRIMARY KEY) Use a bulk load to insert keys into #RowsToDelete; Execute DELETE FROM myTable where Id IN (SELECT ID FROM #RowsToDelete) Execute DROP TABLE #RowsToDelte (the table will also be automatically dropped if you close the session) (Assuming Dapper) code example: conn.

The point about temporary tables is that they're limited to the scope of the connection. Dapper will automatically open and close a connection if it's not already opened. That means that any temp table will be lost directly after creating it, if the connection passed to Dapper has not been opened. This will not work: The solution involves a table that stores image data and the programming of two stored procedures. The first procedure does the import of the image file into a SQL table and the second procedure does the export of the image from a SQL table. Both procedures have the same three parameters: Note that if you're inserting thousands of items, the INSERT statement will be executed once per item, which can be very slow. If this is the case, investigate a community extension to Dapper, such as BulkInsert that can insert 1000s of items in one INSERT statement.

The user wants to bulk import data into the t_float table. The data file, C:\t_float-c.dat, contains scientific notation float data; for example: 8.0000000000000002E-28.0000000000000002E-2 However, BULK INSERT cannot import this data directly into t_float, because its second column, c2, uses the decimal data type. Therefore, a format file is ... This process will work effectively if you are inserting huge sets and the size of the initial data in the table is not too huge. Can you please expand your question to include the rest of the context of the problem. EDIT. Now that I have some more context here is another way you can go about it: Do the bulk insert into a temp table. BulkInsert. The BulkInsert (and BulkInsertAsync extension methods allow efficient insertion of many rows into a database table with a familiar Dapper-like API. Problem. Dapper already has a mechanism for “bulk insert”. Calling Execute with an IEnumerable will execute the specified INSERT command once for each item in the sequence ... Insert only if the entity not already exists. You want to insert entities but only those that don't already exist in the database. InsertIfNotExists: This option lets you insert only entity that doesn't already exist. PrimaryKeyExpression: This option lets you customize the key to use to check if the entity already exists or not. This option ...

The entity framework (EF) is great in many ways but when inserting huge amounts of data, it is not really what you need, unless you have lots of time to spend waiting. In this article, I will present a way to use EF together with the bulk insert functionality without leaving the EF comfort zone. What tools like EntityFrameworkExtended do is instead bulk insert the data into a pseudo-temporary table, and then merge it for you using a key look-up selector function. Doesn't this create extensive disk IO? (as a temp table is created in tempdb, which tends to overflow to disk) BulkInsert. The BulkInsert (and BulkInsertAsync extension methods allow efficient insertion of many rows into a database table with a familiar Dapper-like API. Problem. Dapper already has a mechanism for “bulk insert”. Calling Execute with an IEnumerable will execute the specified INSERT command once for each item in the sequence ...

So, I created a view to get the list of tables (there's a ref table that holds that info), then I created a stored procedure to . create a temp table, using cursors, check each table in the view for the phone number, using sql concatenation. If a record is found, insert it into the temp table. return the rows from the temp table. I want to use SqlBulkCopy to insert lots of files, I can bulk insert into the FileTable, but SqlBulkCopy won´t tell me the inserted stream_id values. SqlBulkCopy doesn't allow to retrieve inserted identity values or any other values. Solution 1. You can find on the web a lot of code snippets to insert into a temporary table using SqlBulkCopy. Note that if you're inserting thousands of items, the INSERT statement will be executed once per item, which can be very slow. If this is the case, investigate a community extension to Dapper, such as BulkInsert that can insert 1000s of items in one INSERT statement.

I wasn't able to find a single example on how to actually use Dapper's new TVP, so I though I'd add one. First of all, you will need to install the Dapper.TVP package from NuGet. The main item to note is the need to create and populate a list of SqlDataRecords. This is then used to used as part of the : input parameter for Dapper's ... @temp table has 40320 records and #AutoData table has 1904 records for this example. But suprisingly just using #temp table instead of @temp variable made the execution slow again. I was suprised to see such differences using or not-using temp table/variable. Appearently SQL Server could not by itself optimize the insides of the OUTER APPLY clause. There is a great discussion of this on StackOverflow that covers many approaches. The one I prefer for SQL Server 2008+ is to use table-valued parameters.This is essentially SQL Server's solution to your problem--passing in a list of values to a stored procedure.

Oracle bulk insert for Dapper .NET. GitHub Gist: instantly share code, notes, and snippets.

What tools like EntityFrameworkExtended do is instead bulk insert the data into a pseudo-temporary table, and then merge it for you using a key look-up selector function. Doesn't this create extensive disk IO? (as a temp table is created in tempdb, which tends to overflow to disk) So, I created a view to get the list of tables (there's a ref table that holds that info), then I created a stored procedure to . create a temp table, using cursors, check each table in the view for the phone number, using sql concatenation. If a record is found, insert it into the temp table. return the rows from the temp table.

The solution to this problem is using SQL Server temp tables. The application works like so: Create a temp table that matches your production table. Bulk insert all your data (including duplicates) to the temp table. Use the SQL Server Merge statement to Upsert from the temp table to your production table. Clean up by removing your temp table. Jan 24, 2015 · Dapper.NET Guide – Inserting Data January 24, 2015 Senthil Kumar B CSharp 1 comment This tutorial will demonstrate in simple steps on how to insert data to the table using Dapper in .NET .

The solution involves a table that stores image data and the programming of two stored procedures. The first procedure does the import of the image file into a SQL table and the second procedure does the export of the image from a SQL table. Both procedures have the same three parameters:

@temp table has 40320 records and #AutoData table has 1904 records for this example. But suprisingly just using #temp table instead of @temp variable made the execution slow again. I was suprised to see such differences using or not-using temp table/variable. Appearently SQL Server could not by itself optimize the insides of the OUTER APPLY clause. Hi Chris, the both link I saw it and tested before. but my problem is I need to read from text file and insert it to the database. and my text file will not contain of header, only I know each row will have 3 column, every row failed will result all the row in same text file to be rollback. The user wants to bulk import data into the t_float table. The data file, C:\t_float-c.dat, contains scientific notation float data; for example: 8.0000000000000002E-28.0000000000000002E-2 However, BULK INSERT cannot import this data directly into t_float, because its second column, c2, uses the decimal data type. Therefore, a format file is ...

Dapper Benchmarks for Inserting Data and Data Table Inserts ( dapper, insert, benchmark, test, sql, bulk ) Recently I’ve had the chance to work with Dapper. It’s what’s called a Micro ORM framework for .NET, developed by Stack Exchange, famous mainly for Stack Overflow. Insert without returning the identity value. By default, the BulkInsert method already returns the identity when inserting. However, such behavior impacts performance. For example, when the identity must be returned, a temporary table is created in SQL Server instead of directly using SqlBulkCopy into the destination table.

How to pass an array to a stored procedure; ... resultset into a Oracle temporary table - and the report will just pull the data from it (or use permanent table with ...

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Pinal Dave is a SQL Server Performance Tuning Expert and an independent consultant. He has authored 12 SQL Server database books, 30 Pluralsight courses and has written over 5000 articles on the database technology on his blog at a https://blog.sqlauthority.com. Along with 16+ years of hands on experience he holds a Masters of Science degree and a number of database certifications.

Dapper Benchmarks for Inserting Data and Data Table Inserts ( dapper, insert, benchmark, test, sql, bulk ) Recently I’ve had the chance to work with Dapper. It’s what’s called a Micro ORM framework for .NET, developed by Stack Exchange, famous mainly for Stack Overflow.

Mapper. Dapper Plus Mapper allow to map the conceptual model (Entity) with the storage model (Database) and configure options to perform Bulk Actions.

How to pass an array to a stored procedure; ... resultset into a Oracle temporary table - and the report will just pull the data from it (or use permanent table with ...

The user wants to bulk import data into the t_float table. The data file, C:\t_float-c.dat, contains scientific notation float data; for example: 8.0000000000000002E-28.0000000000000002E-2 However, BULK INSERT cannot import this data directly into t_float, because its second column, c2, uses the decimal data type. Therefore, a format file is ... You need not specify the column(s) name in the SQL query if you are adding values for all the columns of the table. But make sure the order of the values is in the same order as the columns in the table. Following is the SQL INSERT INTO syntax − INSERT INTO TABLE_NAME VALUES (value1,value2,value3,...valueN); Example

This process will work effectively if you are inserting huge sets and the size of the initial data in the table is not too huge. Can you please expand your question to include the rest of the context of the problem. EDIT. Now that I have some more context here is another way you can go about it: Do the bulk insert into a temp table.

Jan 24, 2011 · create table #CSVRows(rowid int identity(1,1) primary key clustered, CSVRow xml) When you SELECT FROM that table (in order to INSERT into another table), SQL will process it in "rowid" order because the table will already have been (physically) ordered that way. In fact, now that I've thought of this, I just may change the procedure to do this.

Mapper. Dapper Plus Mapper allow to map the conceptual model (Entity) with the storage model (Database) and configure options to perform Bulk Actions. Insert only if the entity not already exists. You want to insert entities but only those that don't already exist in the database. InsertIfNotExists: This option lets you insert only entity that doesn't already exist. PrimaryKeyExpression: This option lets you customize the key to use to check if the entity already exists or not. This option ... The user wants to bulk import data into the t_float table. The data file, C:\t_float-c.dat, contains scientific notation float data; for example: 8.0000000000000002E-28.0000000000000002E-2 However, BULK INSERT cannot import this data directly into t_float, because its second column, c2, uses the decimal data type. Therefore, a format file is ... .

The entity framework (EF) is great in many ways but when inserting huge amounts of data, it is not really what you need, unless you have lots of time to spend waiting. In this article, I will present a way to use EF together with the bulk insert functionality without leaving the EF comfort zone. @temp table has 40320 records and #AutoData table has 1904 records for this example. But suprisingly just using #temp table instead of @temp variable made the execution slow again. I was suprised to see such differences using or not-using temp table/variable. Appearently SQL Server could not by itself optimize the insides of the OUTER APPLY clause. How to pass an array to a stored procedure; ... resultset into a Oracle temporary table - and the report will just pull the data from it (or use permanent table with ...