解析查詢時出錯。 怎么解決呢？

Question

我想運行我從.sql文件中首先讀取的sql語句。

我收到此錯誤： {"There was an error parsing the query. [ Token line number = 13,Token line offset = 1,Token in error = ALTER ]"}

.sql文件中有我的sql語句：

CREATE TABLE [Test]
(
   [Id] INT NOT NULL IDENTITY (1,1),
   [DatabaseVersion] NVARCHAR(20) NOT NULL,
   [Autorun] BIT,
   [CurrentCulture] NVARCHAR(10),
   [MailNotificationEnabled] BIT,
   [RefreshInterval] INT,
   [ModifiedDate] DATETIME NOT NULL,
   [schemat] NVARCHAR(255)
)

ALTER TABLE [Test] ADD CONSTRAINT [PK_Test] PRIMARY KEY ([Id])

UPDATE [AppConfig]
SET [DatabaseVersion] = '0.12'

讀取文件：

string oldVersion = GetOldDatabaseVersion();
string sqlScript = "";
sqlScript = GetScriptFromAssembly(oldVersion, 
ConfigurationSettings.ValidDatabaseVersion);

ExecuteNonQuery(CommandType.Text, sqlScript);

ExecuteNonQuery方法：

public int ExecuteNonQuery(CommandType type, string sql)
{
    using (SqlCeConnection connection = CreateConnection())
    {
        return ExecuteNonQuery(connection, type, sql);
    }
}

private int ExecuteNonQuery(SqlCeConnection connection, CommandType type, string sql)
{
    using (SqlCeCommand command = new SqlCeCommand())
    {
        command.Connection = connection;
        command.CommandType = type;
        command.CommandText = sql;

        return command.ExecuteNonQuery();
    }
}

我不知道該如何解決。 當我直接在db上運行腳本時，它可以工作。

Answer 1

解決了：

string sqlScript = GetScriptFromAssembly(GetOldDatabaseVersion(), ConfigurationSettings.ValidDatabaseVersion);

string[] scripts = sqlScript.Split(new string[] { @"/*$$*/" }, StringSplitOptions.None);

foreach(var script in scripts)
    ExecuteNonQuery(CommandType.Text, script);

向SQL添加了定界符：

CREATE TABLE [Test]
(
   [Id] INT NOT NULL IDENTITY (1,1),
   [DatabaseVersion] NVARCHAR(20) NOT NULL,
   [Autorun] BIT,
   [CurrentCulture] NVARCHAR(10),
   [MailNotificationEnabled] BIT,
   [RefreshInterval] INT,
   [ModifiedDate] DATETIME NOT NULL,
   [schemat] NVARCHAR(255)
)

/*$$*/
ALTER TABLE [Test] ADD CONSTRAINT [PK_Test] PRIMARY KEY ([Id])

/*$$*/
UPDATE [AppConfig]
SET [DatabaseVersion] = '0.12'

Answer 2

您必須將每個語句作為單獨的命令運行，如果使用GO分隔每個命令，則可以使用諸如helper函數之類的代碼分隔為命令：

https://github.com/ErikEJ/SqlCeToolbox/blob/master/src/API/Repositories/ServerDBRepository.cs#L639

如您所見，我正在使用DbUp包中的SqlCommandReaderStreamed來執行此操作

Answer 3

• 請在更改表之前使用Go關鍵字