cree una aplicación en android en donde guardo imagenes directamente a la base de datos. Extraje el archivo de la base de datos sqlite de mi celular y quiero abrirla desde la shell de sqlite3 para sacar las imagenes de la base… Encontre en internet que se pueden usar estos comandos
INSERT INTO images(name,type,img) VALUES('icon','jpeg',readfile('icon.jpg'));
SELECT writefile('icon.jpg',img) FROM images
para insertar y obtener las imagenes, pero cuando ejecuto cualquiera de las dos consultas me bota un error
Error: no such function: writefile
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Adjust your CPAP machine. Most machines come with default settings that might not correspond to your needs. You should be able to regulate the airflow: try different settings and choose one that seems to work for you. If you feel like your machine is not working like it should, try changing the settings again.
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An excellent way to help lessen the effects of sleep apnea is by losing weight. Sometimes, losing weight is all it takes to get rid of sleep apnea. Even a nominal amount of weight loss will go a long way in improving your breathing at night.
If you have difficulties sleeping because of your sleep apnea, you should avoid driving or operating dangerous machines. If you do not get a good night of sleep, take public transportation instead of driving to prevent accidents and do not take a job in a factory or on a construction site.
Minimize your risk from the conditions causing sleep apnea. Some sleep apnea risk factors cannot be changed, like genetic or hereditary reasons. But others, such as weight smoking and drinking, can be controlled.
There are several things that can trigger sleep apnea and there are many treatments. Since you have read this article, you have increased your knowledge about dealing with your sleep apnea. Pass this knowledge on to others whose lives may be affected by this condition. A great night of sleep is still very possible for you.
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en la pagina de sqlite https://www.sqlite.org/cli.html viene ese codigo, y dice que las funciones readfile y writefield no vienen en el core de sqlite, si no son extenciones cargables, es decir que debes de cargar esas funciones a sqlite como si fueran librerias… Si sigues los links que te proporcionan, uno es para descargar el codigo “fileio.c” de la libreria en C que contiene esas funciones: http://www.sqlite.org/src/artifact?ci=trunk&filename=ext/misc/fileio.cl y en los otros enlaces, como copilar ese codigo ese codigo y como leerlo con sqlite
copie el código de la pagina http://www.sqlite.org/src/artifact?ci=trunk&filename=ext/misc/fileio.c en un archivo “fileio.c” y cuando intento compilar el codigo desde la consola me bota un error “sqlite3.h: No such file or directory”
tus librerias de sqlite han de estar des actualizadas, instenta instalar “apt-get install libsqlite3-dev”, despues compilas segun la documentacion de sqlite “gcc -g -fPIC -shared YourCode.c -o YourCode.so”, y al final despues de que habras una consola en sqlite escribes “.load ./YourCode”