当我在mysql中使用时,以下查询成功
INSERT INTO user(`dev_id`,`email`) VALUES('123','456@gmail.com');
但在java jdbc中,我得到了这样的异常:
Can not issue data manipulation statements with executeQuery().
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:910)
at com.mysql.jdbc.Statement.checkForD
我的mysql数据库的jdbc驱动程序的版本是5.1.25。
我想像这样执行sql查询:
statement.execute("select fullName from user where user_id=1; select fullName from user where user_id=2");
我总是收到异常:
Exception in thread "main" com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax;
我正在使用jdbc从MySQL工作台和本地tomcat运行以下内容。
START TRANSACTION;
CREATE SCHEMA IF NOT EXISTS `ROOT`;
CREATE TABLE IF NOT EXISTS `ROOT`.`all_tables` (
`_id` BIGINT NOT NULL AUTO_INCREMENT,
`class_type` VARCHAR(100) NOT NULL,
`schema` VARCHAR(30) NOT NULL,
`table_name` VARCHAR(30) NOT NULL,
`
我试图通过java执行上述查询,但在第6行中得到了以下错误:
Exception in thread "main" com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '? AND lexicon_lemma = ?)' at lin
sql = "select milk_rate from special_milk_rate
where code_producer_id=? and effective_from <= ?
and effective_till >= ?"
在JDBC代码中,此查询中出现错误。
Exception:com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException:您的语法出现了错误;请检查与MySQL服务器版本对应的手册,以获得正确的语法以使用near '?effecti
我编写了下面的代码片段,其中使用了一个SQL查询,它使我获得了DB中特定存储的storeID:
private int inDB(String storename, String phone, int zipcode)
{
try
{
String select = "SELECT storeID FROM Store WHERE storename = ? OR phone = ? AND City_zipcode = ?;";
PreparedStatement pst = dbc.p
我正在尝试使用JDBC执行创建查询。我有一个创建查询的方法,然后执行它,但是它显示了语法错误。下面是堆栈跟踪:
com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'supplierId varchar,supplierUrl varchar,totalActiviti
我一直在开发一个与mysql数据库连接的java应用程序。我可以连接并运行查询,但是当我尝试获取一个字符串并将其作为sql查询运行时,我得到了这个错误。
Exception in thread "main" com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use
我正在编写与数据库一起工作的应用程序。我有这样的类来连接mysql数据库:
public class DataBaseConnector {
private static final String URL = "jdbc:mysql://localhost:3306/dataBase";
private static final String USER = "user";
private static final String PASSWORD = "password";
private Connection c
我有一个应用程序设置为与BoneCP共享mysql连接。现在,这个应用程序并没有得到大量的使用,因此连接也不是那么频繁。经过一段时间后,曾经有效的查询开始失败,我收到类似如下的消息:
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet successfully received from the server was 2,618,063 milliseconds ago. The last packet sent successful
我正在尝试使用以下示例查询从本地csv文件加载内容:
SET GLOBAL local_infile=1; LOAD DATA LOCAL INFILE 'C:/afc_orders.csv' INTO TABLE `afc_report`.`afc_orders` FIELDS TERMINATED BY ';' OPTIONALLY ENCLOSED BY '"' LINES TERMINATED BY '\n' IGNORE 1 ROWS (`type_o`,`n_order`,`n_return`);
从MySQL
我正在尝试使用Apache Spark执行一个简单的mysql查询并创建一个数据框架。但是由于某些原因,spark在我想要执行的查询的末尾附加了'WHERE 1=0',并抛出了一个声明为'You have an error in your SQL syntax'的异常。
val spark = SparkSession.builder.master("local[*]").appName("rddjoin"). getOrCreate()
val mhost = "jdbc:mysql://localhost:3306/
每当我尝试使用这种方法时,我都会得到它。
java.sql.SQLException: Operation not allowed after ResultSet closed
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1055)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926)
我在生成delete命令时遇到了问题:
private String generateDeleteCommand() {
StringBuilder deleteCommand = new StringBuilder();
for (ForeignKey fk : exportedForeignKeys) {
deleteCommand.append("DELETE FROM ").append(fk.foreignTableName)
.append(" WHERE ").append(f
以下是我的查询:
select *
from reg
where indexno=?
or tel=?
这是我的密码:
Class.forName("com.mysql.cj.jdbc.Driver");
Connection con =DriverManager.getConnection("jdbc:mysql://url","unam","pass");
String query = "select * from reg where indexno= ? or tel=?";
PreparedStatemen
我在下面的查询中遇到一个错误,我找不到如何修复的方法,以下是查询代码:
CREATE TABLE IF NOT EXISTS `minecraftitems.blocks` (`player` varchar(16) NOT NULL, `itemid` text NOT NULL, `action` text NOT NULL,`time` big(20) NOT NULL) ENGINE=InnoDB DEFAULT CHARSET=latin1;
错误代码:
10:48:05 [GRAVE] com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxError