![]() The following readFile method reads a file and returns an array of bytes that we can pass to the setBytes method. This creates an instance of the database. Notice that the SQLiteJDBC driver does not implement the setBinaryStream() method, therefore, you must use the setBytes method instead. getWritableDatabase () and paste it inside the new method you just created. String picturePath '' File internalStorage mContext.getDir ( 'ReportPictures', Context. Finally, execute the UPDATE statement by calling the executeUpdate() method of the PreparedStatement object.After that, supply the values to the corresponding parameters using the set* methods of the PreparedStatement object.Then, create a PreparedStatement object from the Connection object.Next, connect to the SQLite database to get the Connection object. ![]() The string representation of the image will be much larger than the binary representation. Im not sure that I, personally, would store the image as a base64-encoded string. To update the picture column with the data from the picture file: To load and save more than one image, you would need to insert an ID field into the table, and then use a where clause on your SQL select statement. Second, prepare a picture file and place it in a folder e.g., C:\temp as follows: Materials Code language: SQL (Structured Query Language) ( sql ) How to Store and Retrieve Image from SQLite in Android. ALTER TABLE materials ADD COLUMN picture blob Code language: SQL (Structured Query Language) ( sql ) Insert BLOB data into SQLite databaseįirst, query data from the materials table to view its content: SELECT id, ![]() The following ALTER TABLE statement adds the picture column to the materials table. To do this, we add a column whose data type is BLOB to the materials table. Suppose we have to store a picture for each material in the materials table. You should save your images into a specific folder and then insert the path of each image into the database. Summary: this tutorial shows you step by step how to update and select the BLOB from an SQLite database.įor the demonstration, we will use the materials table that we created in the creating table tutorial. 5,659 8 52 83 asked at 21:59 uerden 186 1 13 Add a comment 3 Answers Sorted by: 4 If youre using the sqlite3 shell, the relevant function is readfile (). ![]()
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