nits_emb

Sqlite:create table success but insert fails

5 posts in this topic

Below is the code for sample sqlite table creation and inserting values in it. The code successfully creates a db table and while doing insert the code fails with error no 14(SQLITE_CANTOPEN 14 /* Unable to open the database file */). Anybody could guide on this:-
sqlite3 *db;
char *zErrMsg = 0;
int rc;
char *sql;

rc = sqlite3_vfs_register(sqlite3_demovfs(), 1);
if(rc != SQLITE_OK)
{
abort();
}
//rc = sqlite3_open("sqltest.db", &db);
rc = sqlite3_open_v2("test.db", &db, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, "demo" );
if( rc ){
abort();
}

/* Create SQL statement */
sql ="CREATE TABLE Cars(Id INT, Name TEXT, Price INT);" ;

/* Execute SQL statement */
rc = sqlite3_exec(db, sql, NULL, NULL, &zErrMsg);
if( rc != SQLITE_OK ){
sqlite3_free(zErrMsg);
abort();
}

/* Create SQL statement */
sql ="INSERT INTO Cars VALUES(1, 'Audi', 52642);";

/* Execute SQL statement */
rc = sqlite3_exec(db, sql, NULL, NULL, &zErrMsg);
if( rc != SQLITE_OK ){
sqlite3_free(zErrMsg);
abort();
}

/* Create SQL statement */
sql = "SELECT * from Cars";
const char* data = "Callback function called";

/* Execute SQL statement */
rc = sqlite3_exec(db, sql, NULL, NULL, &zErrMsg);
if( rc != SQLITE_OK ){
sqlite3_free(zErrMsg);
abort();
}

sqlite3_close(db);

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When you post code please use code tag  <> icon in forum editor toolbar.
As for your question look in helpfile for _SQLite_* functions.

Welcome to the forum.

mLipok


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On 2/26/2016 at 5:40 PM, mLipok said:

When you post code please use code tag  <> icon in forum editor toolbar.
As for your question look in helpfile for _SQLite_* functions.

Welcome to the forum.

mLipok

Hi

I am trying to port sqlite3 VFS implementation on freertos with stm32. I have created an amalgamation with sqlite3 version 3.12 base code.

When I run the below code it runs to create a database and a query "create a table cars". But when query "insert" is run then fails with following error:-
error no: 26(SQLITE_NOTADB) 
error: "file is encrypted or is not a database"

I have given following options during compile:
    SQLITE_THREADSAFE=0
    SQLITE_OS_OTHER=1
    SQLITE_OMIT_WAL=1

Any pointer would really help.

Have a sample code as below:

    sqlite3 *db = NULL;
    char *zErrMsg = 0;
    int rc;
    char *sql;


    rc = sqlite3_vfs_register(sqlite3_demovfs(), 1); /* Register a VFS */
    if(rc != SQLITE_OK)
    {
        abort();
    }

    rc = sqlite3_open_v2("testsql.db", &db, SQLITE_OPEN_READWRITE |   
    SQLITE_OPEN_CREATE , "demo" );/* Create a SQL table */
    if( rc )
    {
        abort();
    }

    sql = "PRAGMA journal_mode=OFF";/* Create SQL statement */
    rc = sqlite3_exec(db, sql, NULL, NULL, &zErrMsg);/* Execute SQL statement */
    if( rc != SQLITE_OK )
    {
        sqlite3_free(zErrMsg);
        abort();
    }

    sql ="CREATE TABLE Cars(Id INT, Name TEXT, Price INT);" ;/* Create SQL statement */
    rc = sqlite3_exec(db, sql, NULL, NULL, &zErrMsg);/* Execute SQL statement */
    if( rc != SQLITE_OK )
    {
        sqlite3_free(zErrMsg);
        abort();
    }

    sql = "INSERT INTO Cars VALUES(1, 'Audi', 52642);"/* Create SQL statement */
            "INSERT INTO Cars VALUES(2, 'Skoda', 9000);";
    rc = sqlite3_exec(db, sql, NULL, NULL, &zErrMsg);/* Execute SQL statement */
    if( rc != SQLITE_OK )
    {
        sqlite3_free(zErrMsg);
        abort();
    }

    sql = "SELECT * from Cars";/* Create SQL statement */
    const char* data = "Callback function called";
    rc = sqlite3_exec(db, sql, callback, (void *)data, &zErrMsg);/* Execute SQL statement */
    if( rc != SQLITE_OK )
    {
        sqlite3_free(zErrMsg);
        abort();
    }
    sqlite3_close(db);

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@nits_emb,

Once again, you'd have much better time asking on the SQLite mailing list (<sqlite-users@mailinglists.sqlite.org> or http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users) instead of this AutoIt-dedicated forum.

The issue seems to boil down to whether the VFS port works at all. This way off the realm of the current forum.


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