mysql-connector

问题 I am very new to programming, so please bear with me, and apologies in advance if at first I dont make sense...! I am doing an undergrad programming project, and need to make some databases within a Java program. I am using eclipse (galilo) to write my program. I have downloaded a connector/J, but havent the foggiest how i should use it! Anyone out there able to give me a step by step approach?! Many thanks! 回答1: If you need a data explorer of some sort inside your eclipse, you can look at

问题 When one uses Prepared Statements in MySQL C API to handle TEXT field result, one has to specify the length of the string for an out binding: MYSQL_BIND out_bind; char str_data[STRING_SIZE]; my_bool is_null; my_bool error; .... /* STRING COLUMN */ out_bind.buffer_type = MYSQL_TYPE_STRING; out_bind.buffer = str_data; out_bind.buffer_length = STRING_SIZE; out_bind.is_null= &is_null; out_bind.length= &length; out_bind.error= &error; mysql_stmt_bind_result(statement, out_bind) In the given

问题 I am trying to stream events from MySQL to PostgreSQL using Apache Kafka. Although insertions and updates work fine, I can't figure out how to delete a record from MySQL and stream this event to PostgreSQL . Assume the following topology: +-------------+ | | | MySQL | | | +------+------+ | | | +---------------v------------------+ | | | Kafka Connect | | (Debezium, JDBC connectors) | | | +---------------+------------------+ | | | | +-------v--------+ | | | PostgreSQL | | | +----------------+ I

问题 I'm developing CMS application in C#(4.0 Framework) which connects to MySQL database (5.0.95) on remote server by MySQL Connector (6.5.4). I have problem with executing queries. e.g. My connection string: "Server=" + Options.DbServer + ";Database="+ Options.Database +";Uid=" + Options.DbUser + ";Pwd=" + Options.DbPassword + ";CharSet=utf8; Connect Timeout=30;"; I have static class which manages database related stuff, and there I have private member _connection. private static MySqlConnection

问题 The following logic works with the mysqldb module (see python mysqldb multiple cursors for one connection), but I am getting the following error with mysql.connector on cursor2.execute(sql) "Unread result found." I realize that I can use a join to combine these 2 simple sql statements and avoid the need for a second cursor, but my real world example is more complex and requires a second sql statement. Assuming I need to execute 2 separate sql statements (1 for the loop and 1 inside the loop),

问题 I am trying to stream data from a Kafka topic to a MySQL database unsuccessfully. Although the source connector works fine (i.e. streaming data from a MySQL database to kafka topic), sink connector fails to load. Here is my sink-mysql.properties file: name=sink-mysql connector.class=io.confluent.connect.jdbc.JdbcSinkConnector tasks.max=1 topics=test-mysql-jdbc-foobar connection.url=jdbc:mysql://127.0.0.1:3306/demo?user=user1&password=user1pass auto.create=true When I try to execute ./bin

问题 I have written a windows service which uses SSH (Secure Shell) to copy data from a CSV file to PhpMyAdmin online database. There was an error trigger when the connection opens, MySql.Data.MySqlClient.MySqlProtocolException HResult=0x80131509 Message=Packet received out-of-order. Expected 2; got 1. Source=mscorlib StackTrace: at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task

问题 I am trying to use the MySQL C++ Connector to connect to a database. I have added the libraries and the source code compiles correctly with all the necessary #include statements. The code I am using is the following: #include <stdlib.h> #include <iostream> #include "mysql_connection.h" #include <cppconn/driver.h> #include <cppconn/exception.h> #include <cppconn/resultset.h> #include <cppconn/statement.h> using namespace std; int main(void) { using namespace sql; Driver *driver; Connection

问题 Good evening all, does any one know anything about this error JBAS010404: Deploying non-JDBC-compliant driver class com.mysql.jdbc.Driver (version 5.1) it always appears when i start deploying mysql jar and my application fails to start on the sever HTTP Status 404 i suffered a lot from that and can't have any solution, please help me. Note: i used mysql-connector-java-5.1.24.jar 回答1: That message gets printed because the MySQL driver is not JDBC compliant. That may seem a bit weird, but it's

问题 The below program collects the users inputs and stores them, it then saves that data to a .csv / emails it to me and finally inserts that data into a MySQL database. I am using mysql.connector for this, however I am getting the error: AttributeError: 'tuple' object has no attribute 'encode' when the program executes. Here is the code, I think the problem is to do with the type of data trying to be inserted into the database, but I cannot be sure. import mysql.connector # ... # Connect to