C# SqlBuilder類代碼示例
作者：互联网
本文整理匯總了C#中SqlBuilder類的典型用法代碼示例。如果您正苦於以下問題：C# SqlBuilder類的具體用法？C# SqlBuilder怎麽用？C# SqlBuilder使用的例子？那麽恭喜您, 這裏精選的類代碼示例或許可以為您提供幫助。
SqlBuilder類屬於命名空間，在下文中一共展示了SqlBuilder類的20個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於我們的係統推薦出更棒的C#代碼示例。
示例1: List
/// <summary>
/// The list of results.
/// </summary>
/// <param name="maxResults">The max results.</param>
/// <param name="start">The start</param>
/// <param name="finish">The finish</param>
/// <param name="orderBy">The order by.</param>
/// <returns>The result set</returns>
public override IEnumerable<Guid> List(
int maxResults,
DateTime? start = null,
DateTime? finish = null,
ListResultsOrder orderBy = ListResultsOrder.Descending)
{
var builder = new SqlBuilder();
var t = builder.AddTemplate("select Id from MiniProfilers /**where**/ /**orderby**/ LIMIT(" + maxResults + ")");
if (start != null)
{
builder.Where("Started > @start", new { start });
}
if (finish != null)
{
builder.Where("Started < @finish", new { finish });
}
builder.OrderBy(orderBy == ListResultsOrder.Descending ? "Started desc" : "Started asc");
using (var conn = GetOpenConnection())
{
return conn.Query<Guid>(t.RawSql, t.Parameters).ToList();
}
}示例2: BuilderSelectClause
public void BuilderSelectClause()
{
using (var dbConn = dbFactory.OpenDbConnection())
using (var dbCmd = dbConn.CreateCommand())
{
var rand = new Random(8675309);
var data = new List<User>();
for (var i = 0; i < 100; i++)
{
var nU = new User { Age = rand.Next(70), Id = i, Name = Guid.NewGuid().ToString() };
data.Add(nU);
dbCmd.Insert(nU);
nU.Id = (int) dbCmd.GetLastInsertId();
}
var builder = new SqlBuilder();
var justId = builder.AddTemplate("SELECT /**select**/ FROM Users");
var all = builder.AddTemplate("SELECT /**select**/, Name, Age FROM Users");
builder.Select("Id");
var ids = dbCmd.Query<int>(justId.RawSql, justId.Parameters);
var users = dbCmd.Query<User>(all.RawSql, all.Parameters);
foreach (var u in data)
{
Assert.That(ids.Any(i => u.Id == i), "Missing ids in select");
Assert.That(users.Any(a => a.Id == u.Id && a.Name == u.Name && a.Age == u.Age), "Missing users in select");
}
}
}示例3: GetAlls
public static IEnumerable<BusOperator> GetAlls()
{
var builder = new SqlBuilder();
var template = builder.AddTemplate(@"
select *
from BusOperator bo
order by bo.Name");
return Current.DB.Query<BusOperator>(template.RawSql, template.Parameters);
}示例4: TestLessThanConstraint
public void TestLessThanConstraint()
{
SqlBuilder builder = new SqlBuilder( StatementType.Count, typeof(MailingList) );
builder.AddConstraint( Operator.LessThan, "Id", 3 );
int count = GetCount( builder );
Assert.AreEqual( 2, count );
}示例5: TestGreaterThanOrEqualsConstraint
public void TestGreaterThanOrEqualsConstraint()
{
SqlBuilder builder = new SqlBuilder( StatementType.Count, typeof(MailingList) );
builder.AddConstraint( Operator.GreaterThanOrEquals, "Id", 3 );
int count = GetCount( builder );
Assert.AreEqual( 1, count );
}示例6: GetCount
private int GetCount( SqlBuilder builder )
{
SqlStatement statement = builder.GetStatement();
SqlResult result = statement.Execute();
int count = result.Count;
return count;
}示例7: TestCRUD
public void TestCRUD()
{
// skip test if GUIDs are not supported by database backend
if( runTest )
{
o1 = new GuidHolder( 42 );
// insert
o1.Persist();
// select
o2 = GuidHolder.Retrieve( o1.Id );
// verify select/insert
Assert.IsNotNull( o2.Id, "The object could not be retrieved from the database!" );
Assert.AreEqual( o1.Id, o2.Id, "The object could not be retrieved from the database!" );
Assert.AreEqual( o1.SomeValue, o2.SomeValue, "The object could not be retrieved from the database!" );
// update
o2.SomeValue = 1234;
o2.Persist();
// verify update
o1 = GuidHolder.Retrieve( o2.Id );
Assert.AreEqual( o2.Id, o1.Id, "The object could not be retrieved from the database!" );
// delete
o2.Remove();
// verify delete by counting the number of rows
SqlBuilder sb = new SqlBuilder( StatementType.Count, typeof(GuidHolder) );
sb.AddConstraint( Operator.Equals, "Id", o1.Id );
SqlResult sr = Broker.Execute( sb.GetStatement( true ) );
Assert.AreEqual( 0, sr.Count, "Object not removed" );
}
}示例8: InitChannels
private void InitChannels()
{
listViewChannels.Clear();
listViewChannels.BeginUpdate();
try
{
SqlBuilder sb = new SqlBuilder(Gentle.Framework.StatementType.Select, typeof (Channel));
if (checkBoxGuideChannels.Checked)
{
sb.AddConstraint(Operator.Equals, "visibleInGuide", 1);
}
sb.AddConstraint(Operator.Equals, "isTv", 1);
sb.AddOrderByField(true, "sortOrder");
sb.AddOrderByField(true, "displayName");
SqlStatement stmt = sb.GetStatement(true);
IList<Channel> channels = ObjectFactory.GetCollection<Channel>(stmt.Execute());
for (int i = 0; i < channels.Count; i++)
{
// TODO: add imagelist with channel logos from MP :)
ListViewItem curItem = new ListViewItem(channels[i].DisplayName);
curItem.Tag = channels[i];
listViewChannels.Items.Add(curItem);
}
}
finally
{
listViewChannels.EndUpdate();
}
mpButtonOk.Enabled = (listViewChannels.Items.Count > 0);
}示例9: Prepare
internal override PreparedDatabaseCommand Prepare(DocumentStore store, Guid etag, int uniqueParameterIdentifier)
{
var values = ConvertAnonymousToProjections(table, projections);
values[table.EtagColumn] = etag;
values[table.ModifiedAtColumn] = DateTimeOffset.Now;
var sql = new SqlBuilder()
.Append("update {0} set {1} where {2}[email protected]{3}",
store.Database.FormatTableNameAndEscape(table.Name),
string.Join(", ", from column in values.Keys select column.Name + "[email protected]" + column.Name + uniqueParameterIdentifier),
table.IdColumn.Name,
uniqueParameterIdentifier)
.Append(!lastWriteWins, "and {0}[email protected]{1}",
table.EtagColumn.Name,
uniqueParameterIdentifier)
.ToString();
var parameters = MapProjectionsToParameters(values, uniqueParameterIdentifier);
AddTo(parameters, "@Id" + uniqueParameterIdentifier, key, SqlTypeMap.Convert(table.IdColumn).DbType, null);
if (!lastWriteWins)
{
AddTo(parameters, "@CurrentEtag" + uniqueParameterIdentifier, currentEtag, SqlTypeMap.Convert(table.EtagColumn).DbType, null);
}
return new PreparedDatabaseCommand
{
Sql = sql,
Parameters = parameters.Values.ToList(),
ExpectedRowCount = 1
};
}示例10: Prepare
internal override PreparedDatabaseCommand Prepare(DocumentStore store, Guid etag, int uniqueParameterIdentifier)
{
var sql = new SqlBuilder()
.Append("delete from {0} where {1} = @Id{2}",
store.Database.FormatTableNameAndEscape(table.Name),
table.IdColumn.Name,
uniqueParameterIdentifier)
.Append(!lastWriteWins,
"and {0} = @CurrentEtag{1}",
table.EtagColumn.Name,
uniqueParameterIdentifier)
.ToString();
var parameters = new Dictionary<string, Parameter>();
AddTo(parameters, "@Id" + uniqueParameterIdentifier, key, SqlTypeMap.Convert(table.IdColumn).DbType, null);
if (!lastWriteWins)
{
AddTo(parameters, "@CurrentEtag" + uniqueParameterIdentifier, currentEtag, SqlTypeMap.Convert(table.EtagColumn).DbType, null);
}
return new PreparedDatabaseCommand
{
Sql = sql,
Parameters = parameters.Values.ToList(),
ExpectedRowCount = 1
};
}示例11: SqlPaging
public void SqlPaging()
{
var b = new SqlBuilder()
.Select("*")
.From("Orders o")
.Where("o.ShipCountry = @country ", new {country = "USA"})
.OrderBy("CustomerID DESC");
var paging = new
{
Page = 1,
PageSize = 25
};
var t = b.AddTemplate(
Templates.Combine(Templates.SqlServer.PagedSelection, Templates.Count),
paging);
using (var db = new SqlConnection(ConnectionStrings.Northwind))
{
Console.WriteLine(t.RawSql);
var results = db.QueryResultsSql<dynamic, int>(t.RawSql, t.Parameters);
results.Set1.Should().HaveCount(paging.PageSize, "because thats how many are in the page");
results.Set2.Single().Should().Be(122, "because thats how many there are");
}
}示例12: Index
/// <summary>
/// GET: /search
/// GET: /search/index
/// </summary>
/// <returns></returns>
public ActionResult Index(string input, int? page, int? pageSize)
{
ViewBag.Input = input;
page = Math.Max(page ?? 1, 1); // Adjust.
pageSize = Math.Max(Math.Min(pageSize ?? 10, 100), 10); // Adjust.
int start = ((page.Value - 1) * pageSize.Value) + 1;
int finish = page.Value * pageSize.Value;
var builder = new SqlBuilder();
SqlBuilder.Template pager = null, counter = null;
pager = builder.AddTemplate("SELECT * FROM (SELECT /**select**/, ROW_NUMBER() OVER (/**orderby**/) AS RowNumber FROM Questions Q /**where**/) AS Results WHERE RowNumber BETWEEN @start AND @finish ORDER BY RowNumber",
new { start = start, finish = finish });
counter = builder.AddTemplate("SELECT COUNT(*) FROM Questions Q /**where**/");
builder.Select("Q.*");
builder.OrderBy("Q.Time DESC");
builder.Where("Q.Title LIKE @searchInput OR Q.Answer LIKE @searchInput", new { searchInput = "%" + input + "%" });
var results = Current.DB.QueryMultiple(pager.RawSql, pager.Parameters).Read<Question>();
var totals = Current.DB.Query<int>(counter.RawSql, counter.Parameters).First();
ViewData["Href"] = "/search?";
return View(new PagedList<Question>(results, page.Value, pageSize.Value, false, totals));
}示例13: Query
public static IEnumerable<Dictionary<string, object>> Query(this SqliteConnection connection, SqlBuilder sql, SqliteTransaction transaction = null, object sqlParams = null)
{
if (sql == null)
throw new ArgumentNullException("sql", "sql cannot be null.");
return Query(connection, sql.GetSql(), transaction, sqlParams);
}示例14: TopClause
/// <summary>
/// Creates a TopClause with the given topCount and withTies.
/// </summary>
/// <param name="topCount"></param>
/// <param name="withTies"></param>
internal TopClause(int topCount, bool withTies)
{
SqlBuilder sqlBuilder = new SqlBuilder();
sqlBuilder.Append(topCount.ToString(CultureInfo.InvariantCulture));
this.topCount = sqlBuilder;
this.withTies = withTies;
}示例15: GetSetting
/// <summary>
/// gets a value from the database table "Setting"
/// </summary>
/// <returns>A Setting object with the stored value, if it doesnt exist the given default string will be the value</returns>
private Setting GetSetting(string tagName, string defaultValue)
{
if (defaultValue == null)
{
return null;
}
if (tagName == null)
{
return null;
}
if (tagName == "")
{
return null;
}
SqlBuilder sb;
try
{
sb = new SqlBuilder(Gentle.Framework.StatementType.Select, typeof(Setting));
}
catch (TypeInitializationException)
{
return new Setting(tagName,defaultValue);
}
sb.AddConstraint(Operator.Equals, "tag", tagName);
SqlStatement stmt = sb.GetStatement(true);
IList<Setting> settingsFound = ObjectFactory.GetCollection<Setting>(stmt.Execute());
if (settingsFound.Count == 0)
{
Setting set = new Setting(tagName, defaultValue);
set.Persist();
return set;
}
return settingsFound[0];
}示例16: Execute
public override void Execute(IDatabase database)
{
if (!Table.Columns.Any())
{
throw new InvalidOperationException("Cannot create a table with no columns.");
}
var sql = new SqlBuilder();
sql.Append("if not ({0}) begin create table {1} (",
GetTableExistsSql(database, Table.Name),
database.FormatTableNameAndEscape(Table.Name));
var i = 0;
foreach (var column in Table.Columns)
{
var sqlBuilder = new SqlBuilder()
.Append(i > 0, ",")
.Append(database.Escape(column.Name))
.Append(GetColumnSqlType(column, i.ToString()));
sql.Append(sqlBuilder);
i++;
}
sql.Append("); end;");
database.RawExecute(sql.ToString());
}示例17: Init
public void Init()
{
GentleSettings.CacheObjects = false;
CacheManager.Clear();
SqlBuilder sb = new SqlBuilder( StatementType.Delete, typeof(MultiType) );
Broker.Execute( sb.GetStatement( true ) );
}示例18: BuildForm
public Form BuildForm(SqlBuilder Builder, FormLayouts FormLayout = FormLayouts.Vertical, SectionLayouts SectionLayout = SectionLayouts.VerticalTwoColumns)
{
Form form = new Form();
form.FormLayout = FormLayout;
for (int i = 0; i < Builder.Tables.Count; i++)
{
FormSection section = new FormSection() { SectionLayout = SectionLayout };
Table table = Builder.Tables[i];
MetadataTable mt = Builder.Metadata.FindTable(table.FullName);
// section.Legend = StringMap.Default.GetText(SqlBuilder.DefaultCulture.LCID, mt.Fullname, mt.Name);
section.Legend = mt.DisplayName;
string TableName = mt.Fullname;
if (i == 0)
{
form.TitleColumn = mt.GuessTitleColumn();
}
foreach (Field field in table.FieldList)
{
string name = field.Name;
MetadataColumn mc;
if (mt.Columns.TryGetValue(name, out mc))
{
MetadataColumn includedFrom = mt.Columns.Values.FirstOrDefault(x => x.IncludeColumns != null && x.IncludeColumns.Contains(field.Alias ?? field.Name));
BuildField(mc, TableName, field.Alias, section, includedFrom, i > 0);
}
}
if (section.Fields.Count > 0)
{
form.Sections.Add(section);
}
}
form.Sections[0].Fields.Insert(0, new FormField() { Name = "__TABLE", ID = "__TABLE", FieldType = FieldTypes.Input, InputType = InputTypes.text, IsHidden = true });
return form;
}示例19: TestSqlBuilder
public void TestSqlBuilder()
{
TestModel model = new TestModel();
SqlBuilder builder = new SqlBuilder();
string expected = "SELECT OrderType, OrderNbr FROM SOOrder";
string result = builder.Select(model).ToString();
Assert.IsTrue(expected.ToLower().Trim() == result.ToLower().Trim());
}示例20: Init
public void Init()
{
GentleSettings.CacheObjects = false;
CacheManager.Clear();
// make sure table is empty before we start
SqlBuilder sb = new SqlBuilder( StatementType.Delete, typeof(PropertyHolder) );
Broker.Execute( sb.GetStatement( true ) );
}注：本文中的SqlBuilder類示例整理自Github/MSDocs等源碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。
转 https://vimsky.com/zh-tw/examples/detail/csharp-ex---SqlBuilder---class.html
标签：SqlBuilder,示例,C#,builder,代碼,var,new 来源： https://www.cnblogs.com/wl-blog/p/16290638.html