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How To Check For Duplicates Before Inserting Into Sql | AutoTraffic

How to Check for Duplicates Before Inserting Into SQL

When you insert new records into an SQL database, you may run into issues where you accidentally overwrite records that are already present due to a duplication issue. You can use a simple alteration ... read more

SQL Server Removing Duplicates

Before we run through them if you want to follow along then run the following SQL to create two ... to do a SELECT DISTINCT into a new table to remove the duplicates, then we’re having to clear out ou... read more

Inserting Data Into a Database Using Batch Job

To insert data into a database using ... allows you to run diverse SQL operations on your database, including Select, Insert, Update, Delete, and even Stored Procedures. To use a database connector in ... read more

How to avoid duplicates of Oracle delimited codes in CLOB column

Earlier, the application allowed duplicate ... check, it takes more time for me. Could you please give me some clarity on this? I think it might be faster to scan the CLOB for an occurrence of the 10 ... read more

SQL Server Query Design

Before I get to the syntax, however, there are a few formalities to deal with. There are dozens of Transact-SQL commands ... You can also insert data into a table based on the result of a SELECT state... read more

Fixing a Race Condition

Unfortunately we didn’t add uniqueness constraints at the database level when we created the scheduling system back in 2013, so a race condition somewhere can still add duplicate interviewers into ... ... read more

Automated UI Testing with Visual Studio 2012

This article delves into what it takes to effectively create ... for checking on the selected control. In this case, to check the value of the total, you can select the DisplayText before clicking the ... read more

Loading CSV Files Using Dynamic SQL

Speaking at SQL ... into the database. You will also need to check to see if the file already has a corresponding table, and if does, you will need to see if the data that you are importing already ex... read more

How to Check for Duplicates Before Inserting Into SQL

The Structured Query Language's INSERT statement adds new records to database tables. In some business situations, duplicates pose problems, especially for master tables such as customers, products or ... read more

10 Easy Steps to a Complete Understanding of SQL

As in: "machine, do this, and then do that, but before, run a check and fail if this-and-that ... most beginners are probably tricked into thinking that column values are the first-class citizens in S... read more

Adding Indexes to a Table

You also can use an index as a quick way to check for uniqueness. If you are inserting a new name into the index structure shown earlier, you simply search for the new name in the index. If you find i... read more

How to use the SELECT statement in SQL

Hernandez also examine how to eliminate duplicate rows with the DISTINCT ... you learn about SELECT to create UPDATE, INSERT, and DELETE statements. The SELECT operation in SQL can be broken down into ... read more
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