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Discover effective solutions to fix the `ORA-00933` error when performing multiple inserts in SQL Developer with Oracle.
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Mastering Multiple Inserts in SQL Developer: Solutions for Common Errors

Using SQL to manage your data in Oracle can become challenging, especially when it comes to performing multiple inserts in SQL Developer. Many users encounter problems that can lead to frustrating errors. One common issue is the infamous ORA-00933: SQL command not properly ended error that can pop up when trying to run a multi-row insert query.

Understanding the Problem

Let’s take a look at an example to better understand the issue. Below is a query intended to insert multiple records into a table called tabletest:

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When executing this code, a user faced the following error message:

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This error occurs because the SQL syntax used for inserting multiple rows is incorrect in Oracle SQL Developer.

Solution Overview

In Oracle SQL Developer, there are specific ways to efficiently insert multiple records into a table without encountering the ORA-00933 error. We will explore two main methods to achieve this:

Method 1: Using INSERT ALL

One of the simplified methods to perform multiple inserts is by using the INSERT ALL statement. Here’s how you can structure your query:

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Explanation:

INSERT ALL allows you to specify multiple INTO clauses in one transaction.

The SELECT * from dual is a dummy select that must be included to complete the statement.

Method 2: Using INSERT INTO ... SELECT

Another effective method is to use the INSERT INTO ... SELECT pattern combined with UNION ALL. This method is slightly more verbose but widely used:

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Explanation:

Here, you are selecting each row of the data from the dual table, which acts as a placeholder.

The use of UNION ALL combines all the rows into a single result set that the INSERT command consumes.

Conclusion

In conclusion, if you encounter the ORA-00933 error while attempting to execute a multiple-row insert in SQL Developer, don't panic. By using one of the above methods, you can successfully insert multiple records into your Oracle tables without issues. Choose between INSERT ALL for straightforward syntax or see the power of the INSERT INTO ... SELECT method to handle complex scenarios.

By mastering these techniques, you can streamline data management in Oracle, making your work as a developer more efficient and effective.