sqlite3 sqlite3_preparesqlite3_step使用

Posted 2020-06-20 帅胡

void select_by_prepare (sqlite3* pDB){
 51     int i;
 52     int ret = 0;
 53     int time;
 54     char* pdu;
 55     int pdu_size;
 56     int flag;
 57     sqlite3_stmt *statement;
 58 
 59     ret = sqlite3_prepare (pDB, "SELECT * FROM content", -1, &statement, NULL);
 60     if(ret != SQLITE_OK){
 61         printf("prepare error ret : %d\n", ret);
 62         return;
 63     }
 64 
 65     while (sqlite3_step(statement) == SQLITE_ROW) {
 66         time = sqlite3_column_int(statement, 0);
 67         pdu = (char *)sqlite3_column_text(statement, 1);
 68         pdu_size = sqlite3_column_int (statement, 2);
 69         flag = sqlite3_column_int (statement, 3);
 70 
 71         printf("step row num : %d, %s, %d, %d\n", time, pdu, pdu_size, flag);
 72     }
 73 
 74     sqlite3_finalize(statement);
75 }