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This commit is contained in:
andy
2021-06-04 14:04:03 +01:00
parent 19be985731
commit 8d3aa5ec03
31 changed files with 390 additions and 170 deletions
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SacsStandardDbas/Dbas/Proc/SaDbProcess_CompareDatabaseSchemas.cs
+42 -34
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@@ -19,13 +19,19 @@ namespace Sarand.Net.Standard.Dbas.Proc
// Configuration.
public new class Config : SacsProcess.Config
{
public Config (SacsDatabase sourceDatabase, SacsDatabase targetDatabase)
public Config(ISacsDatabase sourceDatabase, ISacsDatabase targetDatabase)
{
SourceDatabase = sourceDatabase;
TargetDatabase = targetDatabase;
}
public SacsDatabase SourceDatabase { get; }
public SacsDatabase TargetDatabase { get; }
public Config(List<DbDfnTable> sourceTables, ISacsDatabase targetDatabase)
{
SourceTables = sourceTables;
TargetDatabase = targetDatabase;
}
public ISacsDatabase SourceDatabase { get; }
public List<DbDfnTable> SourceTables { get; }
public ISacsDatabase TargetDatabase { get; }
public bool HideIdenticalObjects { get; set; }
public bool IgnoreNullable { get; set; }
public bool IgnorePosition { get; set; }
@@ -37,11 +43,11 @@ namespace Sarand.Net.Standard.Dbas.Proc
// Definitions.
public interface IProcessNotifier : ISacsProcessNotifier
{
void OnSchemaComparisonItemAdded (SaDbProcess_CompareDatabaseSchemas proc);
void OnSchemaComparisonItemAdded(SaDbProcess_CompareDatabaseSchemas proc);
}
public class SchemaComparisonItem
{
internal SchemaComparisonItem (String tableName, String columnName, int columnPosition, String indexName, String comment)
internal SchemaComparisonItem(String tableName, String columnName, int columnPosition, String indexName, String comment)
{
Id = ++SeedId;
TableName = tableName;
@@ -67,11 +73,11 @@ namespace Sarand.Net.Standard.Dbas.Proc
//-------------------------------------------------------------------
// Construction.
public SaDbProcess_CompareDatabaseSchemas (Config config) : base(config)
public SaDbProcess_CompareDatabaseSchemas(Config config) : base(config)
{
this.config = config;
}
protected override void Dispose (bool disposing)
protected override void Dispose(bool disposing)
{
if (disposing)
{
@@ -95,7 +101,7 @@ namespace Sarand.Net.Standard.Dbas.Proc
//-------------------------------------------------------------------
// S c h e m a D i f f e r e n c e s
//-------------------------------------------------------------------
public List<SchemaComparisonItem> GetSchemaComparisonItems (int minId = 0)
public List<SchemaComparisonItem> GetSchemaComparisonItems(int minId = 0)
{
return new List<SchemaComparisonItem>(schemaComparisonItems.FindAll(item => item.Id >= minId));
}
@@ -103,21 +109,23 @@ namespace Sarand.Net.Standard.Dbas.Proc
//-------------------------------------------------------------------
// P r o c e s s i n g
//-------------------------------------------------------------------
protected override bool Run ()
protected override bool Run()
{
schemaComparisonItems.Clear();
if (config.SourceDatabase == null) return SetProcessError("Source database must be supplied.");
if (config.SourceDatabase == null && config.SourceTables == null) return SetProcessError("Source database must be supplied.");
CompareTables();
return OK;
}
//-------------------------------------------------------------------
private void CompareTables ()
private void CompareTables()
{
List<String> sourceTables = config.SourceDatabase.GetTableNames().OrderBy(item => item).ToList();
List<String> targetTables = config.TargetDatabase.GetTableNames().OrderBy(item => item).ToList();
for (int sourceTableIdx = 0, targetTableIdx = 0; sourceTableIdx <= sourceTables.Count && targetTableIdx <= targetTables.Count;)
// Database schemas.
List<String> sourceTables = (config.SourceDatabase?.GetTableNames(true) ?? config.SourceTables.Select(item => item.Name)).OrderBy(item => item).ToList();
List<String> targetTables = config.TargetDatabase.GetTableNames(true).OrderBy(item => item).ToList();
for (int sourceTableIdx = 0, targetTableIdx = 0; sourceTableIdx < sourceTables.Count || targetTableIdx < targetTables.Count;)
{
String sourceTableName = (sourceTableIdx < sourceTables.Count ? sourceTables[sourceTableIdx] : "");
String targetTableName = (targetTableIdx < targetTables.Count ? targetTables[targetTableIdx] : "");
@@ -143,8 +151,8 @@ namespace Sarand.Net.Standard.Dbas.Proc
Debugger.Break();
#endif
// Retrieve table definition from each database.
DbDfnTable sourceTableDfn = config.SourceDatabase.GetTableDfn (sourceTableName);
DbDfnTable targetTableDfn = config.TargetDatabase.GetTableDfn (targetTableName);
DbDfnTable sourceTableDfn = config.SourceDatabase?.GetTableDfn(sourceTableName, true) ?? config.SourceTables.GetTableByName(sourceTableName);
DbDfnTable targetTableDfn = config.TargetDatabase.GetTableDfn(targetTableName, true);
// Compare the columns and indices.
CompareTableColumns(sourceTableDfn, targetTableDfn);
CompareTableIndices(sourceTableDfn, targetTableDfn);
@@ -155,7 +163,7 @@ namespace Sarand.Net.Standard.Dbas.Proc
}
//-------------------------------------------------------------------
private bool CompareTableColumns (DbDfnTable sourceTableDfn, DbDfnTable targetTableDfn)
private bool CompareTableColumns(DbDfnTable sourceTableDfn, DbDfnTable targetTableDfn)
{
String tableName = sourceTableDfn.Name;
#if DEBUG_X
@@ -177,7 +185,7 @@ namespace Sarand.Net.Standard.Dbas.Proc
String sourceColumnName = sourceColumnIdx < sourceColumnNames.Count() ? sourceColumnNames[sourceColumnIdx] : "";
String targetColumnName = targetColumnIdx < targetColumnNames.Count() ? targetColumnNames[targetColumnIdx] : "";
// Retrieve Column definition from each database.
DbDfnColumn sourceColumn = sourceColumns.GetColumnByName (sourceColumnName);
DbDfnColumn sourceColumn = sourceColumns.GetColumnByName(sourceColumnName);
if (sourceColumn != null) iPosition = sourceColumn.Pos;
DbDfnColumn targetColumn = targetColumns.GetColumnByName(targetColumnName);
// Compare Columns.
@@ -225,7 +233,7 @@ namespace Sarand.Net.Standard.Dbas.Proc
return OK;
}
private static long iLargeSizeThreshold = 4000;
private bool ColumnSizesDiffer (DbDfnColumn sourceColumn, DbDfnColumn targetColumn)
private bool ColumnSizesDiffer(DbDfnColumn sourceColumn, DbDfnColumn targetColumn)
{
if (sourceColumn.Size == targetColumn.Size) return false;
// If both columns are large, treat then as equal:
@@ -240,33 +248,33 @@ namespace Sarand.Net.Standard.Dbas.Proc
if (config.IgnoreSimilarNumericTypes)
{
// Floating point types.
List<String> numericTypes = StringListUtil.Split("Real,Float,Double,Decimal,Numeric",",");
List<String> numericTypes = StringListUtil.Split("Real,Float,Double,Decimal,Numeric", ",");
if (numericTypes.ContainsCI(sourceDataType) && numericTypes.ContainsCI(targetDataType)) return false;
}
// DateTimes:
List<String> dateTimeTypes = StringListUtil.Split("DateTime",",");
List<String> dateTimeTypes = StringListUtil.Split("DateTime", ",");
if (dateTimeTypes.ContainsCI(sourceDataType) && dateTimeTypes.ContainsCI(targetDataType)) return false;
return true;
}
private bool ColumnDecimalsDiffer (DbDfnColumn sourceColumn, DbDfnColumn targetColumn)
private bool ColumnDecimalsDiffer(DbDfnColumn sourceColumn, DbDfnColumn targetColumn)
{
if (sourceColumn.DecimalDigits == targetColumn.DecimalDigits) return false;
// Check for specific data types:
String sourceDataType = sourceColumn.DataTypeNameNative;
String targetDataType = targetColumn.DataTypeNameNative;
// Numeric types - float/double columns report decimals as 0.
List<String> floatTypes = StringListUtil.Split("Real,Float,Double",",");
List<String> decimalTypes = StringListUtil.Split("Decimal,Numeric",",");
List<String> floatTypes = StringListUtil.Split("Real,Float,Double", ",");
List<String> decimalTypes = StringListUtil.Split("Decimal,Numeric", ",");
if (sourceColumn.DecimalDigits == 0 && floatTypes.ContainsCI(sourceDataType) && targetColumn.DecimalDigits > 0 && decimalTypes.ContainsCI(targetDataType)) return false;
if (sourceColumn.DecimalDigits > 0 && decimalTypes.ContainsCI(sourceDataType) && targetColumn.DecimalDigits == 0 && floatTypes.ContainsCI(targetDataType)) return false;
// DateTimes:
List<String> dateTimeTypes = StringListUtil.Split("DateTime",",");
List<String> dateTimeTypes = StringListUtil.Split("DateTime", ",");
if (dateTimeTypes.ContainsCI(sourceDataType) && dateTimeTypes.ContainsCI(targetDataType)) return false;
return true;
}
private bool ColumnDataTypesDiffer (DbDfnColumn sourceColumn, DbDfnColumn targetColumn)
private bool ColumnDataTypesDiffer(DbDfnColumn sourceColumn, DbDfnColumn targetColumn)
{
if (sourceColumn.DataType == targetColumn.DataType) return false;
@@ -279,13 +287,13 @@ namespace Sarand.Net.Standard.Dbas.Proc
if (config.IgnoreSimilarNumericTypes)
{
// Similar numeric type.
List<String> numericTypes = StringListUtil.Split("Real,Float,Double,Decimal,Numeric",",");
List<String> numericTypes = StringListUtil.Split("Real,Float,Double,Decimal,Numeric", ",");
if (numericTypes.ContainsCI(sourceDataType) && numericTypes.ContainsCI(targetDataType)) return false;
}
return true;
}
private bool ColumnNativeDataTypesDiffer (DbDfnColumn sourceColumn, DbDfnColumn targetColumn)
private bool ColumnNativeDataTypesDiffer(DbDfnColumn sourceColumn, DbDfnColumn targetColumn)
{
if (sourceColumn.DataTypeNative == targetColumn.DataTypeNative) return false;
@@ -295,20 +303,20 @@ namespace Sarand.Net.Standard.Dbas.Proc
if (config.IgnoreSimilarCharTypes)
{
// Similar Char types.
List<String> varCharTypes = StringListUtil.Split("VarChar,LongVarChar,LongChar,NVarChar,VarWChar",",");
List<String> varCharTypes = StringListUtil.Split("VarChar,LongVarChar,LongChar,NVarChar,VarWChar", ",");
if (varCharTypes.ContainsCI(sourceDataType) && varCharTypes.ContainsCI(targetDataType)) return false;
}
if (config.IgnoreSimilarNumericTypes)
{
// Similar numeric types.
List<String> numericTypes = StringListUtil.Split("Real,Float,Double,Numeric,Decimal",",");
List<String> numericTypes = StringListUtil.Split("Real,Float,Double,Numeric,Decimal", ",");
if (numericTypes.ContainsCI(sourceDataType) && numericTypes.ContainsCI(targetDataType)) return false;
}
return true;
}
//-------------------------------------------------------------------
private bool CompareTableIndices (DbDfnTable sourceTableDfn, DbDfnTable targetTableDfn)
private bool CompareTableIndices(DbDfnTable sourceTableDfn, DbDfnTable targetTableDfn)
{
String sTable = sourceTableDfn.Name;
@@ -317,7 +325,7 @@ namespace Sarand.Net.Standard.Dbas.Proc
List<DbDfnIndex> targetIndices = targetTableDfn.Indices;
List<String> sourceIndexNames = sourceIndices.GetNames().OrderBy(item => item).ToList();
List<String> targetIndexNames = targetIndices.GetNames().OrderBy(item => item).ToList();
for (int sourceIndexIdx = 0, targetIndexIdx = 0; OK && sourceIndexIdx < sourceIndexNames.Count && targetIndexIdx < targetIndexNames.Count; )
for (int sourceIndexIdx = 0, targetIndexIdx = 0; OK && sourceIndexIdx < sourceIndexNames.Count && targetIndexIdx < targetIndexNames.Count;)
{
// Retrieve the Index names.
String sourceIndexName = sourceIndexIdx < sourceIndexNames.Count ? sourceIndexNames[sourceIndexIdx] : "";
@@ -382,7 +390,7 @@ namespace Sarand.Net.Standard.Dbas.Proc
}
//-------------------------------------------------------------------
private void AddSchemaComparisonItem (String tableName, String columnName, int position, String indexName, String comment)
private void AddSchemaComparisonItem(String tableName, String columnName, int position, String indexName, String comment)
{
schemaComparisonItems.Add(new SchemaComparisonItem(tableName, columnName, position, indexName, comment));
if (ProcessNotifier != null) ProcessNotifier.OnSchemaComparisonItemAdded(this);
@@ -395,7 +403,7 @@ namespace Sarand.Net.Standard.Dbas.Proc
public static class SchemaComparisonItemList
{
/// <summary>Identify the maximum Id value in the list.</summary>
public static int GetMaxId (this IEnumerable<SaDbProcess_CompareDatabaseSchemas.SchemaComparisonItem> values)
public static int GetMaxId(this IEnumerable<SaDbProcess_CompareDatabaseSchemas.SchemaComparisonItem> values)
{
int maxId = 0;
foreach (SaDbProcess_CompareDatabaseSchemas.SchemaComparisonItem schemaComparisonItem in values)