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52 lines
1.4 KiB
52 lines
1.4 KiB
using System.Data;
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using System.Text;
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using Connected.Data.Schema;
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namespace Connected.ServiceModel.Client.Data.Schema;
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internal class TableTransaction : SynchronizationTransaction
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{
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protected static string CreateColumnCommandText(ISchemaColumn column)
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{
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var builder = new StringBuilder();
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builder.AppendFormat($"{column.Name} {CreateDataTypeMetaData(column)} ");
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return builder.ToString();
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}
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protected static string CreateDataTypeMetaData(ISchemaColumn column)
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{
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return column.DataType switch
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{
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DbType.AnsiString => "text",
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DbType.Binary => "blob",
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DbType.Byte => "tinyint",
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DbType.Boolean => "boolean",
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DbType.Currency => "decimal",
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DbType.Date => "timestamp",
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DbType.DateTime => "timestamp",
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DbType.Decimal => "decimal",
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DbType.Double => "double",
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DbType.Guid => "uuid",
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DbType.Int16 => "smallint",
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DbType.Int32 => "int",
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DbType.Int64 => "bigint",
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DbType.Object => "blob",
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DbType.SByte => "smallint",
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DbType.Single => "float",
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DbType.String => "text",
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DbType.Time => "time",
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DbType.UInt16 => "int",
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DbType.UInt32 => "bigint",
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DbType.UInt64 => "float",
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DbType.VarNumeric => "decimal",
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DbType.AnsiStringFixedLength => "text",
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DbType.StringFixedLength => "text",
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DbType.Xml => "text",
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DbType.DateTime2 => "timestamp",
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DbType.DateTimeOffset => "timestamp",
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_ => throw new NotSupportedException(),
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};
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}
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}
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