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Update 达梦 Codefirst

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sunkaixuan 2023-12-11 19:49:37 +08:00
parent 962486d283
commit d6e42628ec
1 changed files with 27 additions and 0 deletions
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27
Src/Asp.NetCore2/SqlSugar/Realization/Dm/DbMaintenance/DmDbMaintenance.cs
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@ -267,6 +267,33 @@ namespace SqlSugar
#endregion
#region Methods
public override bool UpdateColumn(string tableName, DbColumnInfo column)
{
var oldColumn = this.Context.DbMaintenance.GetColumnInfosByTableName(tableName, false)
.FirstOrDefault(it => it.DbColumnName.EqualCase(column.DbColumnName));
if (oldColumn != null)
{
if (oldColumn.IsNullable == column.IsNullable)
{
var sql = GetUpdateColumnSqlOnlyType(tableName, column);
this.Context.Ado.ExecuteCommand(sql);
return true;
}
}
return base.UpdateColumn(tableName, column);
}
protected virtual string GetUpdateColumnSqlOnlyType(string tableName, DbColumnInfo columnInfo)
{
string columnName = this.SqlBuilder.GetTranslationColumnName(columnInfo.DbColumnName);
tableName = this.SqlBuilder.GetTranslationTableName(tableName);
string dataSize = GetSize(columnInfo);
string dataType = columnInfo.DataType;
string nullType = "";
string primaryKey = null;
string identity = null;
string result = string.Format(this.AlterColumnToTableSql, tableName, columnName, dataType, dataSize, nullType, primaryKey, identity);
return result;
}
public override List<string> GetDbTypes()
{
var result = this.Context.Ado.SqlQuery<string>(@"SELECT DISTINCT DATA_TYPE