SQLite error al tratar de guardar y leer imagenes desde la shell

Preguntas RecientesSQLite error al tratar de guardar y leer imagenes desde la shell
snow Staff preguntada 2 años antes

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
Robertfreet contestada 1 año antes

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TimothySog contestada 1 año antes

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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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Angelolaf contestada 6 meses antes

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BrianDor contestada 4 meses antes

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snow Staff contestada 2 años antes

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

snow contestada 2 años antes

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”

drozz contestada 2 años antes

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”

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