C# 如何使用OracleC命令执行不同的多个SQL语句#

我尝试使用OracleCommand执行不同的SQL语句

var conn = new OracleConnection("User Id=SYSTEM;Password=mw;Data Source=SampleDataSource");
// Open the connection
if (conn.State != ConnectionState.Open)
    conn.Open();

string sql = @"
    DROP TABLE CUSTOMERS;

    CREATE TABLE CUSTOMERS (
        ID INT NOT NULL PRIMARY KEY,
        NAME VARCHAR(12) NOT NULL,
        AGE INT,
        ADDRESS VARCHAR(12)
    );

    INSERT INTO CUSTOMERS (ID,NAME,AGE,ADDRESS) VALUES (1, 'Mark', 28, 'NY');

    INSERT INTO CUSTOMERS (ID,NAME,AGE,ADDRESS) VALUES (2, 'John', 39, 'LA');

    INSERT INTO CUSTOMERS (ID,NAME,AGE,ADDRESS) VALUES (3, 'Andy', 48, 'CA');

    INSERT INTO CUSTOMERS (ID,NAME,AGE,ADDRESS) VALUES (4, 'Allan', 53, 'LA');
";

var cmd = new OracleCommand(sql, conn);
try
{
    cmd.ExecuteNonQuery();
}
catch (OracleException e)
{
    error = e.Message;
}
finally
{
    if (conn.State == ConnectionState.Open)
    {
        conn.Close();
    }
}

我得到以下例外情况

ORA-00933:SQL命令未正确结束

当我在BEGIN，END块中包含多个语句时，我得到了以下异常

ORA-06550:第2行第1列： PLS-00103：在预期以下情况时遇到符号“下降”：

  public static class DbConnectionFactory {
    public static IDbConnection Create(string connectionString) {
      var connection = new OracleConnection(connectionString);
      connection.Open();

      return connection;
    }
  }


  const string dropTableCustomers = "DROP TABLE CUSTOMERS";

  const string createTableCustomers = @"    
    CREATE TABLE CUSTOMERS (
    ID INT NOT NULL PRIMARY KEY,
    NAME VARCHAR(12) NOT NULL,
    AGE INT,
    ADDRESS VARCHAR(12))";

  const string insertCustomerMark = "INSERT INTO CUSTOMERS (ID,NAME,AGE,ADDRESS) VALUES (1, 'Mark', 28, 'NY')";
  const string insertCustomerJohn = "INSERT INTO CUSTOMERS (ID,NAME,AGE,ADDRESS) VALUES (2, 'John', 39, 'LA')";

  using (var connection = DbConnectionFactory.Create("User Id=SYSTEM;Password=mw;Data Source=SampleDataSource"))
  using (var transaction = connection.BeginTransaction()) {

    connection.Execute(dropTableCustomers);
    connection.Execute(createTableCustomers);
    connection.Execute(insertCustomerMark);
    connection.Execute(insertCustomerJohn);

    transaction.Commit();
  }

---

（begin case declare exit for goto if loop mod null pragma raise return select update with withexecute immediate将使您能够执行多条语句

OracleConnection con = new OracleConnection("User Id=SYSTEM;Password=mw;Data Source=SampleDataSource");  

if (con.State != ConnectionState.Open)
    con.Open();

OracleCommand cmd = new OracleCommand();
cmd.Connection = con;
cmd.CommandText =
    "begin " +
    "  execute immediate 'DROP TABLE CUSTOMERS';" +
    "  execute immediate 'CREATE TABLE CUSTOMERS (ID INT NOT NULL PRIMARY KEY,NAME VARCHAR(12) NOT NULL, AGE INT, ADDRESS VARCHAR(12))';" +
    "  execute immediate 'INSERT INTO CUSTOMERS (ID,NAME,AGE,ADDRESS) VALUES (1, 'Mark', 28, 'NY')';" +
    "  execute immediate 'INSERT INTO CUSTOMERS (ID,NAME,AGE,ADDRESS) VALUES (2, 'John', 39, 'LA')';" +
    "  execute immediate 'INSERT INTO CUSTOMERS (ID,NAME,AGE,ADDRESS) VALUES (3, 'Andy', 48, 'CA')';" +
    "  execute immediate 'INSERT INTO CUSTOMERS (ID,NAME,AGE,ADDRESS) VALUES (4, 'Allan', 53, 'LA')';" +
    "end;"
cmd.CommandType = CommandType.Text;
try
{
    cmd.ExecuteNonQuery();
}
catch (OracleException e)
{
    error = e.Message;
}
finally
{
    if (con.State == ConnectionState.Open)
    {
        con.Close();
    }
}

---

也许对每条语句使用命令会更好。 下面是一个例子

如果您需要交易，可以执行以下操作：

  public static class DbConnectionFactory {
    public static IDbConnection Create(string connectionString) {
      var connection = new OracleConnection(connectionString);
      connection.Open();

      return connection;
    }
  }


  const string dropTableCustomers = "DROP TABLE CUSTOMERS";

  const string createTableCustomers = @"    
    CREATE TABLE CUSTOMERS (
    ID INT NOT NULL PRIMARY KEY,
    NAME VARCHAR(12) NOT NULL,
    AGE INT,
    ADDRESS VARCHAR(12))";

  const string insertCustomerMark = "INSERT INTO CUSTOMERS (ID,NAME,AGE,ADDRESS) VALUES (1, 'Mark', 28, 'NY')";
  const string insertCustomerJohn = "INSERT INTO CUSTOMERS (ID,NAME,AGE,ADDRESS) VALUES (2, 'John', 39, 'LA')";

  using (var connection = DbConnectionFactory.Create("User Id=SYSTEM;Password=mw;Data Source=SampleDataSource"))
  using (var transaction = connection.BeginTransaction()) {

    connection.Execute(dropTableCustomers);
    connection.Execute(createTableCustomers);
    connection.Execute(insertCustomerMark);
    connection.Execute(insertCustomerJohn);

    transaction.Commit();
  }

---

您可以创建一个存储过程并使用execute immediate吗？您必须使用execute immediate删除表。您也可以尝试使用此execute immediate来调用多个语句。这可能与Oracle无关，但在MS SQL Server中，您不能在同一批中执行删除、创建表和查询。如果Oracle有一个类似MSSQL的批处理分隔符

GO

尝试将其放在中间。通常情况下，您不会在运行时删除或创建表。您的目的是什么？

插入到…

不需要

立即执行

不，它也不能仅使用drop和create语句

strSQL = @"Insert all into NEW1(a,b) VALUES(1,2) "
                + "INTO NEW1(a,b) VALUES(2, 3) "
                + "INTO NEW1(a,b) VALUES(3, 4) "
                + "INTO NEW2(a,b) VALUES(9, 9) "
                + "INTO NEW2(a,b) VALUES(6, 6) "
                + "SELECT * FROM DUAL";