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Sometimes we need to remove special characters from string or columns value. Suppose, we developed an ETL tool that inserting records on ...
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$cond operator has the keyword "if", "then" and "else", using this operator we can perform if/else in ...
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This issue comes much time when we are using PostgreSQL with Node.js, Error: Cannot find module 'bcrypt' in nodejs application, and...
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Here we will discuss the technique to fetch nth row of the table in PostgreSQL. I will use the concept of the LIMIT and OFFSET Clause . ... -
If you are a DBA and you are working on a data-dictionary for a project so that you can keep track of schema changes and so on, then this ... -
We can use $add an operator to add days in ISODate in MongoDB, $add is the Arithmetic Aggregation Operator, which adds number and date in ...
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There are several ways to check the table exist in the particular schema , some solutions are described below. First, I'll create...
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Problem: Suppose we have a collection and one field is type string contains some special character (like !@#$%) and we don’t want these s...
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In this article, we will learn how to create an AppSync API with the Lambda function. I will show you how a lambda function is written usi... -
Many scenarios come in query writing, we have to check particular VIEW exists in the database or not. There are many approaches to che...
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