![]() Call the execute() method of the PDO statement object.For the BLOB data, you bind a parameter to the file pointer. Use the bindParam() method of the PDOStatement object to bind a parameter to a variable name.UPDATE tablename SET column1 value1, column2 value2. Syntax Following is the basic syntax of UPDATE query with WHERE clause. You can use WHERE clause with UPDATE query to update selected rows, otherwise all the rows would be updated. The prepare() method returns an instance of the PDOStatement class. SQLite UPDATE Query is used to modify the existing records in a table. Prepare the INSERT statement for execution by calling the prepare() method of the PDO object.The fopen() function returns a file pointer. Each trigger must specify that it will fire for one of the following operations: DELETE, INSERT, UPDATE. Triggers are database operations that are automatically performed when a specified database event occurs. Use fopen() function to read the file. Description The CREATE TRIGGER statement is used to add triggers to the database schema.Connect to the SQLite database by creating an instance of the PDO class.To insert BLOB data into the table, you use the following steps: ) Code language: SQL (Structured Query Language) ( sql ) Writing BLOB into the table We will create a new table named documents for the sake of demonstration. By using the BLOB, you can store the documents, images, and other multimedia files in the database. Summary: in this tutorial, you will learn how to manage BLOB data in SQLite database using PHP PDO.īLOB stands for a binary large object that is a collection of binary data stored as a value in the database.
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