public static string CreateAlterTabelPrimaryKeyConstraintDLL(PrimaryKeyClass constraint, eCreateMode cmode)
{
var sb = new StringBuilder();
if (constraint == null)
{
return(string.Empty);
}
if ((cmode == eCreateMode.drop) || (cmode == eCreateMode.recreate))
{
sb.Append(CreateDropPKConstraintDLL(constraint));
sb.Append($@"{SQLPatterns.Commit}{Environment.NewLine}{Environment.NewLine}");
}
if ((cmode == eCreateMode.create) || (cmode == eCreateMode.recreate))
{
//ALTER TABLE TADRESSEN ADD CONSTRAINT PK_TADRESSEN PRIMARY KEY(TPLZ_ID);
//ALTER TABLE #REPLACE_TABLE ADD CONSTRAINT #REPLACE_CONSTRAINT PRIMARY KEY(#REPLACE_COLUMNS);";
string cmd = SQLPatterns.AlterTableAddPK.Replace(SQLPatterns.PrimaryKey, constraint.Name).Replace(SQLPatterns.ColumnKey, MakeConcatedStr(constraint.FieldNames, ",")).Replace(SQLPatterns.TableKey, constraint.TableName);;
sb.Append(cmd);
cmd = (!(constraint.Sorting == eSort.ASC))
? $@"){Environment.NewLine}USING {constraint.Sorting} INDEX {constraint.IndexName};{Environment.NewLine}"
: $@"){Environment.NewLine}USING INDEX {constraint.IndexName};{Environment.NewLine}";
sb.Append(cmd);
}
return(sb.ToString());
}
private static string CreateDropPKConstraintDLL(PrimaryKeyClass constraint)
{
var sb = new StringBuilder();
if (constraint.TableName != null)
{
sb.Append($@"ALTER TABLE {constraint.TableName} DROP CONSTRAINT {constraint.Name};{Environment.NewLine}");
sb.Append($@"{SQLPatterns.Commit}{Environment.NewLine}{Environment.NewLine}");
}
return(sb.ToString());
}
