Re: [sqlite] two process problem
Joe Wilson wrote: --- Dennis Cote <[EMAIL PROTECTED]> wrote: On 2/3/07, Tom Shaw <[EMAIL PROTECTED]> wrote: SQLSTATE[HY000]: General error: 1 SQL logic error or missing database and SQLSTATE[HY000]: General error: 8 attempt to write a readonly database Tom what wrapper are you using to access sqlite? These messages are not from sqlite itself, but your wrapper. It may have restrictions that sqlite does not. He got this from sqlite3_errmsg() which in turn calls sqlite3ErrStr(): Joe, I was asking about the other end of the messages. These parts are not produced by sqlite. SQLSTATE[HY000]: General error: 1 SQLSTATE[HY000]: General error: 8 I suspect some wrapper added these prefixes to the standard sqlite error strings. Dennis Cote - To unsubscribe, send email to [EMAIL PROTECTED] -
Re: [sqlite] two process problem
--- Dennis Cote <[EMAIL PROTECTED]> wrote:
> On 2/3/07, Tom Shaw <[EMAIL PROTECTED]> wrote:
> > SQLSTATE[HY000]: General error: 1 SQL logic error or missing database
> > and
> > SQLSTATE[HY000]: General error: 8 attempt to write a readonly database
>
> Tom what wrapper are you using to access sqlite? These messages are not
> from sqlite itself, but your wrapper. It may have restrictions that sqlite
> does not.
$ grep 'SQL logic error or missing database' */*.c
src/main.c:case SQLITE_ERROR: z = "SQL logic error or missing
database"; break;
$ grep 'attempt to write a readonly database' */*.c
src/main.c:case SQLITE_READONLY: z = "attempt to write a readonly
database"; break;
He got this from sqlite3_errmsg() which in turn calls sqlite3ErrStr():
/*
** Return UTF-8 encoded English language explanation of the most recent
** error.
*/
const char *sqlite3_errmsg(sqlite3 *db){
const char *z;
if( !db || sqlite3MallocFailed() ){
return sqlite3ErrStr(SQLITE_NOMEM);
}
if( sqlite3SafetyCheck(db) || db->errCode==SQLITE_MISUSE ){
return sqlite3ErrStr(SQLITE_MISUSE);
}
z = (char*)sqlite3_value_text(db->pErr);
if( z==0 ){
z = sqlite3ErrStr(db->errCode);
}
return z;
}
...
/*
** Return a static string that describes the kind of error specified in the
** argument.
*/
const char *sqlite3ErrStr(int rc){
const char *z;
switch( rc & 0xff ){
case SQLITE_ROW:
case SQLITE_DONE:
case SQLITE_OK: z = "not an error"; break;
case SQLITE_ERROR: z = "SQL logic error or missing database"; break;
case SQLITE_PERM: z = "access permission denied"; break;
case SQLITE_ABORT: z = "callback requested query abort";break;
case SQLITE_BUSY: z = "database is locked";break;
case SQLITE_LOCKED: z = "database table is locked"; break;
case SQLITE_NOMEM: z = "out of memory"; break;
case SQLITE_READONLY: z = "attempt to write a readonly database"; break;
case SQLITE_INTERRUPT: z = "interrupted"; break;
case SQLITE_IOERR: z = "disk I/O error";break;
case SQLITE_CORRUPT:z = "database disk image is malformed"; break;
case SQLITE_FULL: z = "database or disk is full"; break;
case SQLITE_CANTOPEN: z = "unable to open database file"; break;
case SQLITE_PROTOCOL: z = "database locking protocol failure"; break;
case SQLITE_EMPTY: z = "table contains no data";break;
case SQLITE_SCHEMA: z = "database schema has changed"; break;
case SQLITE_CONSTRAINT: z = "constraint failed"; break;
case SQLITE_MISMATCH: z = "datatype mismatch"; break;
case SQLITE_MISUSE: z = "library routine called out of sequence";break;
case SQLITE_NOLFS: z = "kernel lacks large file support"; break;
case SQLITE_AUTH: z = "authorization denied"; break;
case SQLITE_FORMAT: z = "auxiliary database format error"; break;
case SQLITE_RANGE: z = "bind or column index out of range"; break;
case SQLITE_NOTADB: z = "file is encrypted or is not a database";break;
default:z = "unknown error"; break;
}
return z;
}
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Re: [sqlite] two process problem
On 2/3/07, Tom Shaw <[EMAIL PROTECTED]> wrote: SQLSTATE[HY000]: General error: 1 SQL logic error or missing database and SQLSTATE[HY000]: General error: 8 attempt to write a readonly database Tom what wrapper are you using to access sqlite? These messages are not from sqlite itself, but your wrapper. It may have restrictions that sqlite does not. Dennis Cote
Re: [sqlite] PS Re: [sqlite] two process problem
I have 2 processes running one is updating portions of a table and >>one is inserting. > > >Are you using threads? There are some issues using the same database handle >with multiple threads. Each process is single threaded. Your error messages don't look familiar. What language are you programming in, and do you use a wrapper or call sqlite directly? Some details/code might help debug it.
[sqlite] PS Re: [sqlite] two process problem
At 4:59 PM -0600 2/3/07, Jay Sprenkle wrote: On 2/3/07, Tom Shaw <[EMAIL PROTECTED]> wrote: I have 2 processes running one is updating portions of a table and one is inserting. Are you using threads? There are some issues using the same database handle with multiple threads. Each process is single threaded. Tom - To unsubscribe, send email to [EMAIL PROTECTED] -
Re: [sqlite] two process problem
At 4:59 PM -0600 2/3/07, Jay Sprenkle wrote: On 2/3/07, Tom Shaw <[EMAIL PROTECTED]> wrote: I have 2 processes running one is updating portions of a table and one is inserting. Are you using threads? There are some issues using the same database handle with multiple threads. No, two separate processes Tom - To unsubscribe, send email to [EMAIL PROTECTED] -
Re: [sqlite] two process problem
On 2/3/07, Tom Shaw <[EMAIL PROTECTED]> wrote: I have 2 processes running one is updating portions of a table and one is inserting. Are you using threads? There are some issues using the same database handle with multiple threads. -- -- The PixAddixImage Collector suite: http://groups-beta.google.com/group/pixaddix SqliteImporter and SqliteReplicator: Command line utilities for Sqlite http://www.reddawn.net/~jsprenkl/Sqlite Cthulhu Bucks! http://www.cthulhubucks.com
[sqlite] two process problem
I have 2 processes running one is updating portions of a table and one is inserting. I don't accumulate updates but rather update a record at a time to keep the time of locking down. (eg begin update commit) Likewise, I only insert one at a time for the same reason. Each process works fine when running on its own yet when running them together I get errors such as: SQLSTATE[HY000]: General error: 1 SQL logic error or missing database and SQLSTATE[HY000]: General error: 8 attempt to write a readonly database I thought sqlite handled locks. What am I doing wrong? TIA, Tom - To unsubscribe, send email to [EMAIL PROTECTED] -
