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Latest Post

Solving PLS-00553: Character Set Mismatch Between Variable and Database Column Solving PLS-00487: Invalid Reference to Variable in PL/SQL Understanding Microsoft Azure AI Vision and Face Services How to Fix PLS-00428: An INTO Clause Is Expected in This SELECT Statement Solving PLS-00410: Duplicate Fields in RECORD, TABLE, or Argument List Are Not Allowed
Oracle

Solving PLS-00553: Character Set Mismatch Between Variable and Database Column

The PLS-00553 error in PL/SQL indicates a character set incompatibility between a variable (typically a VARCHAR2, CHAR, or CLOB) and a column or function result with a different character set.…

Oracle

Solving PLS-00487: Invalid Reference to Variable in PL/SQL

The PL/SQL error PLS-00487: Invalid reference to variable <name> occurs when you attempt to reference a variable in a context where it is not allowed, such as: This article explores…

Artificial Intelligence

Understanding Microsoft Azure AI Vision and Face Services

Imagine teaching a computer to see the world the way we do — recognizing objects, reading text, and even identifying faces. That’s exactly what Microsoft Azure AI Vision and Face…

Oracle

How to Fix PLS-00428: An INTO Clause Is Expected in This SELECT Statement

In PL/SQL, when you execute a SELECT statement inside a PL/SQL block (such as in a procedure, function, or anonymous block), you must fetch the selected data into variables using…

Oracle

Solving PLS-00410: Duplicate Fields in RECORD, TABLE, or Argument List Are Not Allowed

The PL/SQL error PLS-00410 is encountered when the compiler finds duplicate identifiers in a RECORD, TABLE, or subprogram argument list. Since PL/SQL does not allow two fields or parameters to…

Oracle

Solving PLS-00364: Loop Index Variable Must Be an Integer

In PL/SQL, FOR loops are a powerful control structure used to iterate over a defined range of numbers or rows. However, this construct has specific syntactic rules. One common error…

Oracle

PL/SQL Blocks: Structure, Types, and Variable Management

PL/SQL (Procedural Language/Structured Query Language) uses blocks as the fundamental unit of programming. Every PL/SQL program is composed of one or more blocks that structure the code into manageable units.…

Artificial Intelligence

What is Deep Learning in Computer Vision

Deep learning has become a big deal in the world of computer vision. But before we get into how it works, let’s understand something important: how do computers “see” an…

Artificial Intelligence

What is Computer Vision

Computer vision is a field in artificial intelligence (AI) that gives machines the ability to “see” and make sense of the visual world — just like humans do with their…

Artificial Intelligence

What Are Neural Networks and Deep Learning

Neural networks are a key part of artificial intelligence (AI). They’re designed to work like the human brain — well, sort of. While they don’t actually think like we do,…

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You missed

Oracle

Solving PLS-00553: Character Set Mismatch Between Variable and Database Column

Oracle

Solving PLS-00487: Invalid Reference to Variable in PL/SQL

Artificial Intelligence

Understanding Microsoft Azure AI Vision and Face Services

Oracle

How to Fix PLS-00428: An INTO Clause Is Expected in This SELECT Statement

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