Question

我正在使用visual studio 2013和oracle数据库。我想在单个oraclecommand中同时执行多个创建表查询是否可能？我正在尝试关注但不能正常工作

OracleCommand cmd = new OracleCommand();
cmd.Connection = con;
cmd.CommandText = "create table test(name varchar2(50) not null)"+"create table test2(name varchar2(50) not null)"; 
//+ "create table test3(name varchar2(50) not null)"+"create table test3(name varchar2(50) not null)";
cmd.CommandType = CommandType.Text;
cmd.ExecuteNonQuery();

cmd.ExecuteNonQuery（）;

出错

Answer 1

为了执行多个命令，将它们放在begin ... end;块中。对于DDL语句（如create table），请使用execute immediate运行它们。这段代码对我有用：

OracleConnection con = new OracleConnection(connectionString);
con.Open();

OracleCommand cmd = new OracleCommand();
cmd.Connection = con;
cmd.CommandText =
    "begin " +
    "  execute immediate 'create table test1(name varchar2(50) not null)';" +
    "  execute immediate 'create table test2(name varchar2(50) not null)';" +
    "end;";
cmd.CommandType = CommandType.Text;
cmd.ExecuteNonQuery();
con.Close();

更多信息：Executing SQL Scripts with Oracle.ODP

Answer 2

你试过吗

cmd.CommandText = "create table test(name varchar2(50) not null);"+"create table test2(name varchar2(50) not null);";

在C＃中的单个Oracle命令中执行多个查询

2 个答案: