public static OracleColumn BuildColumnValueColumn(OracleDataType columnType)
{
return
(new OracleColumn
{
Name = ColumnNameColumnValue,
DataType = columnType,
Nullable = true
});
}
public static OracleColumn BuildColumnValueColumn(OracleDataType columnType)
{
return
new OracleColumn
{
Name = ColumnNameColumnValue,
DataType = columnType,
Nullable = true
};
}
public static string ResolveFullTypeName(OracleDataType dataType, int?characterSize = null)
{
if (!dataType.IsPrimitive)
{
return(dataType.FullyQualifiedName.ToString());
}
var name = dataType.FullyQualifiedName.Name.Trim('"');
var effectiveSize = String.Empty;
switch (name)
{
case TerminalValues.NVarchar2:
case TerminalValues.NVarchar:
case TerminalValues.Varchar2:
case TerminalValues.Varchar:
case TerminalValues.NChar:
case TerminalValues.Char:
var effectiveLength = characterSize ?? dataType.Length;
if (effectiveLength.HasValue)
{
var unit = dataType.Unit == DataUnit.Byte ? " BYTE" : " CHAR";
effectiveSize = $"({effectiveLength}{(dataType.Unit == DataUnit.NotApplicable ? null : unit)})";
}
name = $"{name}{effectiveSize}";
break;
case TerminalValues.Float:
case TerminalValues.Number:
var decimalScale = dataType.Scale > 0 ? $", {dataType.Scale}" : null;
if (dataType.Precision > 0 || dataType.Scale > 0)
{
name = $"{name}({(dataType.Precision == null ? "*" : Convert.ToString(dataType.Precision))}{decimalScale})";
}
break;
case TerminalValues.Raw:
name = $"{name}({dataType.Length})";
break;
case TerminalValues.Timestamp:
case OracleDatabaseModelBase.BuiltInDataTypeTimestampWithTimeZone:
if (dataType.Scale.HasValue)
{
name = name.Replace(TerminalValues.Timestamp, $"{TerminalValues.Timestamp}({dataType.Scale})");
}
break;
}
return(name);
}
public static string ResolveFullTypeName(OracleDataType dataType, int? characterSize = null)
{
if (!dataType.IsPrimitive)
{
return dataType.FullyQualifiedName.ToString();
}
var name = dataType.FullyQualifiedName.Name.Trim('"');
var effectiveSize = String.Empty;
switch (name)
{
case TerminalValues.NVarchar2:
case TerminalValues.NVarchar:
case TerminalValues.Varchar2:
case TerminalValues.Varchar:
case TerminalValues.NChar:
case TerminalValues.Char:
var effectiveLength = characterSize ?? dataType.Length;
if (effectiveLength.HasValue)
{
var unit = dataType.Unit == DataUnit.Byte ? " BYTE" : " CHAR";
effectiveSize = $"({effectiveLength}{(dataType.Unit == DataUnit.NotApplicable ? null : unit)})";
}
name = $"{name}{effectiveSize}";
break;
case TerminalValues.Float:
case TerminalValues.Number:
var decimalScale = dataType.Scale > 0 ? $", {dataType.Scale}" : null;
if (dataType.Precision > 0 || dataType.Scale > 0)
{
name = $"{name}({(dataType.Precision == null ? "*" : Convert.ToString(dataType.Precision))}{decimalScale})";
}
break;
case TerminalValues.Raw:
name = $"{name}({dataType.Length})";
break;
case TerminalValues.Timestamp:
if (dataType.Scale.HasValue)
{
name = $"{name}({dataType.Scale})";
}
break;
}
return name;
}
private static string GetFunctionParameterTypeName(OracleDataType dataType)
{
return(dataType.IsPrimitive ? dataType.FullyQualifiedName.NormalizedName : TypeCodeObject);
}
private static OracleObjectIdentifier GetFunctionParameterCustomTypeIdentifier(OracleDataType dataType)
{
return(dataType.IsPrimitive ? OracleObjectIdentifier.Empty : dataType.FullyQualifiedName);
}
public static bool TryResolveDataTypeFromExpression(StatementGrammarNode expressionNode, OracleColumn column)
{
if (expressionNode == null || expressionNode.TerminalCount == 0 || !String.Equals(expressionNode.Id, NonTerminals.Expression))
{
return(false);
}
expressionNode = expressionNode.UnwrapIfNonChainedExpressionWithinParentheses(out var isChainedExpression);
if (isChainedExpression)
{
return(false);
}
var analyzedNode = expressionNode[NonTerminals.CastOrXmlCastFunction, NonTerminals.CastFunctionParameterClause, NonTerminals.AsDataType, NonTerminals.DataType];
if (analyzedNode != null)
{
column.DataType = OracleReferenceBuilder.ResolveDataTypeFromNode(analyzedNode);
column.Nullable = true;
return(true);
}
if (String.Equals(expressionNode.FirstTerminalNode.Id, Terminals.Collect))
{
column.DataType = OracleDataType.DynamicCollectionType;
column.Nullable = true;
return(true);
}
var tokenValue = expressionNode.FirstTerminalNode.Token.Value;
string literalInferredDataTypeName = null;
var literalInferredDataType = new OracleDataType();
var nullable = false;
switch (expressionNode.FirstTerminalNode.Id)
{
case Terminals.StringLiteral:
if (expressionNode.TerminalCount != 1)
{
break;
}
if (tokenValue[0] == 'n' || tokenValue[0] == 'N')
{
literalInferredDataTypeName = TerminalValues.NChar;
}
else
{
literalInferredDataTypeName = TerminalValues.Char;
}
literalInferredDataType.Length = tokenValue.ToPlainString().Length;
nullable = literalInferredDataType.Length == 0;
break;
case Terminals.NumberLiteral:
if (expressionNode.TerminalCount != 1)
{
break;
}
switch (tokenValue[tokenValue.Length - 1])
{
case 'f':
case 'F':
literalInferredDataTypeName = TerminalValues.BinaryFloat;
break;
case 'd':
case 'D':
literalInferredDataTypeName = TerminalValues.BinaryDouble;
break;
default:
literalInferredDataTypeName = TerminalValues.Number;
break;
}
/*if (includeLengthPrecisionAndScale)
* {
* literalInferredDataType.Precision = GetNumberPrecision(tokenValue);
* int? scale = null;
* if (literalInferredDataType.Precision.HasValue)
* {
* var indexDecimalDigit = tokenValue.IndexOf('.');
* if (indexDecimalDigit != -1)
* {
* scale = tokenValue.Length - indexDecimalDigit - 1;
* }
* }
*
* literalInferredDataType.Scale = scale;
* }*/
break;
case Terminals.Date:
if (expressionNode.TerminalCount == 2)
{
literalInferredDataTypeName = TerminalValues.Date;
}
break;
case Terminals.Timestamp:
if (expressionNode.TerminalCount == 2)
{
var timestampStringValue = expressionNode.LastTerminalNode.Token.Value.ToPlainString();
var timeZoneElement = OracleStatementValidator.TimestampValidator.Match(timestampStringValue).Groups["Timezone"];
literalInferredDataTypeName = timeZoneElement.Success ? OracleDatabaseModelBase.BuiltInDataTypeTimestampWithTimeZone : TerminalValues.Timestamp;
literalInferredDataType.Scale = 9;
}
break;
}
if (literalInferredDataTypeName != null)
{
literalInferredDataType.FullyQualifiedName = OracleObjectIdentifier.Create(null, literalInferredDataTypeName);
column.DataType = literalInferredDataType;
column.Nullable = nullable;
return(true);
}
return(false);
}
private static bool TryResolveDataTypeFromExpression(StatementGrammarNode expressionNode, OracleColumn column)
{
if (expressionNode == null || expressionNode.TerminalCount == 0 || !String.Equals(expressionNode.Id, NonTerminals.Expression))
{
return false;
}
var isChainedExpression = expressionNode[NonTerminals.ExpressionMathOperatorChainedList] != null;
if (isChainedExpression)
{
return false;
}
var analyzedNode = expressionNode[NonTerminals.ParenthesisEnclosedExpression, NonTerminals.Expression];
if (analyzedNode != null)
{
return TryResolveDataTypeFromExpression(analyzedNode, column);
}
analyzedNode = expressionNode[NonTerminals.CastOrXmlCastFunction, NonTerminals.CastFunctionParameterClause, NonTerminals.AsDataType, NonTerminals.DataType];
if (analyzedNode != null)
{
column.DataType = OracleReferenceBuilder.ResolveDataTypeFromNode(analyzedNode);
column.Nullable = true;
return true;
}
if (String.Equals(expressionNode.FirstTerminalNode.Id, Terminals.Collect))
{
column.DataType = OracleDataType.DynamicCollectionType;
column.Nullable = true;
return true;
}
var tokenValue = expressionNode.FirstTerminalNode.Token.Value;
string literalInferredDataTypeName = null;
var literalInferredDataType = new OracleDataType();
var nullable = false;
switch (expressionNode.FirstTerminalNode.Id)
{
case Terminals.StringLiteral:
if (expressionNode.TerminalCount != 1)
{
break;
}
if (tokenValue[0] == 'n' || tokenValue[0] == 'N')
{
literalInferredDataTypeName = TerminalValues.NChar;
}
else
{
literalInferredDataTypeName = TerminalValues.Char;
}
literalInferredDataType.Length = tokenValue.ToPlainString().Length;
nullable = literalInferredDataType.Length == 0;
break;
case Terminals.NumberLiteral:
if (expressionNode.TerminalCount != 1)
{
break;
}
literalInferredDataTypeName = TerminalValues.Number;
/*if (includeLengthPrecisionAndScale)
{
literalInferredDataType.Precision = GetNumberPrecision(tokenValue);
int? scale = null;
if (literalInferredDataType.Precision.HasValue)
{
var indexDecimalDigit = tokenValue.IndexOf('.');
if (indexDecimalDigit != -1)
{
scale = tokenValue.Length - indexDecimalDigit - 1;
}
}
literalInferredDataType.Scale = scale;
}*/
break;
case Terminals.Date:
if (expressionNode.TerminalCount == 2)
{
literalInferredDataTypeName = TerminalValues.Date;
}
break;
case Terminals.Timestamp:
if (expressionNode.TerminalCount == 2)
{
literalInferredDataTypeName = TerminalValues.Timestamp;
literalInferredDataType.Scale = 9;
}
break;
}
if (literalInferredDataTypeName != null)
{
literalInferredDataType.FullyQualifiedName = OracleObjectIdentifier.Create(null, literalInferredDataTypeName);
column.DataType = literalInferredDataType;
column.Nullable = nullable;
return true;
}
return false;
}
