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中国大学MOOC: int sqlite3_exec(sqlite3*, const char *sql, sqlite3_callback, void *, char **errmsg ),第3个参数sqlite3_callback 是回调,当这条语句执行之后,sqlite3会去调用这个函数。 ( ) 相关知识点: 试题来源: 解析 错 反馈 收藏
If the busy callback is NULL, thenSQLITE_BUSYorSQLITE_IOERR_BLOCKEDis returned immediately upon encountering the lock. If the busy callback is not NULL, then the callback might be invoked with two arguments. 如果回调函数的参数为NULL,那么SQlite系统会在遇到一个锁的时候马上返回SQLITE_BUSY或者SQLIT...
callback_test.go doc.go error.go error_test.go sqlite3-binding.c sqlite3-binding.h sqlite3.go sqlite3_context.go sqlite3_func_crypt.go sqlite3_func_crypt_test.go sqlite3_go18.go sqlite3_go18_test.go sqlite3_libsqlite3.go sqlite3_load_extension.go ...
这种一般是版本问题，你使用的dll版本中没有该函数。换个版本试验一下
int sqlite3_exec(sqlite3*, const char *sql, sqlite3_callback, void *, char **errmsg ),第3个参数sqlite3_callback 是回调,当这条语句执行之后,sqlite3会去调用这个函数。 ()
gormlogger's callback method Trace() to be invoked after hitting a 'database is locked' error. In further debugging found the following: When “_txlock=immediate”, in the sqlite3 DB, the ‘database is locked’ error is thrown when the DB transaction is opened(ie at the very beginning...
#include <sqlite3.h> static int callback(void *NotUsed, int argc, char **argv, char **azColName){ int i; for(i=0; i<argc; i++){ printf("%s = %s\n", azColName[i], argv[i] ? argv[i] : "NULL"); } printf("\n"); ...
>From what I think I have learned so far, if I call sqlite3_exec() giving it a call back function and a select * from tbl, I do not have any direct access to the column values other that the text representation in the values char array from within the callback()? This leads me...
SQLiteQuery* q =newSQLiteQuery(Query::WORKER_THREAD,Query::HAS_RESULT); q->setQueryText("SELECT * FROM auth"); q->setCallbackFunction(boost::bind(&dummyFunction, q)); SQLiteQuery* q2 =newSQLiteQuery(boost::bind(&dummyFunction, q2),Query::WORKER_THREAD,Query::HAS_RESULT); ...