Java SQL CREATE语句包含错误的EXCUTES

任何人都可以帮助确定此sql create语句的问题所在。我试图使用JDBC驱动程序执行，但它返回一个错误：com.mysql.JDBC.exceptions.jdbc4.MySQLSyntaxErrorException:您的SQL语法有错误；检查与您的MySQL服务器版本对应的手册，以了解在第1行的“CREATE TABLE IF NOT EXISTS

asms

customerAccount

（

trn\u id

INT NOT NULL AUTO'）附近使用的正确语法。 我正在使用mysql数据库

      String createAccount = "DROP TABLE IF EXISTS `asms`.`customerAccount`"
            + "CREATE TABLE IF NOT EXISTS`asms`.`customerAccount` ( "
            + " `trn_id` INT NOT NULL AUTO_INCREMENT, "
            + " `trn_date` DATE NOT NULL, "
            + " `narration` VARCHAR(200) NULL, "
            + " `value_date` VARCHAR(50) NULL, "
            + " `debit` DOUBLE NULL,  `credit` DOUBLE NULL,"
            + "  `ledger_balance` DOUBLE NULL DEFAULT 0.0, "
            + " `credit_account_no` VARCHAR(50) NULL, "
            + " `customerAccountcol` VARCHAR(100)NULL, "
            + " `tra_ref_number` VARCHAR(50) NULL, "
            + " `trn_type` VARCHAR(10) NULL, "
            + " `action_type` VARCHAR(10) NULL,  "
            + "`approve_insu_funds` VARCHAR(10) NULL,"
            + "  PRIMARY KEY (`trn_id`), "
            + " UNIQUE INDEX `debit_UNIQUE` (`debit` ASC),"
            + "  UNIQUE INDEX `credit_UNIQUE` (`credit` ASC),"
            + "  UNIQUE INDEX `ledger_balance_UNIQUE` (`ledger_balance` ASC))ENGINE = InnoDB AUTO_INCREMENT = 00001";

---

这应该是两个查询，第一个删除表，第二个创建新的表

首先删除表格（如果存在）

String dropTableQuery= "DROP TEMPORARY TABLE IF EXISTS `asms`.`customerAccount`";
//execute the query now

然后执行创建查询

String createAccount ="CREATE TABLE IF NOT EXISTS`asms`.`customerAccount` ( "
        + " `trn_id` INT NOT NULL AUTO_INCREMENT, "
        + " `trn_date` DATE NOT NULL, "
        + " `narration` VARCHAR(200) NULL, "
        + " `value_date` VARCHAR(50) NULL, "
        + " `debit` DOUBLE NULL,  `credit` DOUBLE NULL,"
        + "  `ledger_balance` DOUBLE NULL DEFAULT 0.0, "
        + " `credit_account_no` VARCHAR(50) NULL, "
        + " `customerAccountcol` VARCHAR(100)NULL, "
        + " `tra_ref_number` VARCHAR(50) NULL, "
        + " `trn_type` VARCHAR(10) NULL, "
        + " `action_type` VARCHAR(10) NULL,  "
        + "`approve_insu_funds` VARCHAR(10) NULL,"
        + "  PRIMARY KEY (`trn_id`), "
        + " UNIQUE INDEX `debit_UNIQUE` (`debit` ASC),"
        + "  UNIQUE INDEX `credit_UNIQUE` (`credit` ASC),"
        + "  UNIQUE INDEX `ledger_balance_UNIQUE` (`ledger_balance` ASC))ENGINE = InnoDB AUTO_INCREMENT = 00001";

---

//和ofc。执行查询

我猜您不能在同一个JDBC语句中执行两个DML语句。

DROP TABLE

和

CREATE TABLE

。可能是因为SQL中没有DROP TABLE IF EXISTS CREATE TABLE IF NOT EXISTS语句。没有任何分隔符，这是一个大语句（语法无效）.没错，但这些语句是否可以在一个语句中运行？您将如何编辑我的字符串以达到预期目的？