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TableDesc: Determinar si la columna es nullable

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Valeriano A.R.
2013-11-21 23:49:57 +01:00
parent 77f7787e23
commit 4f7664794f
1 changed files with 22 additions and 11 deletions
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33
ServerExplorer/TablaDesc.cs
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@@ -63,20 +63,21 @@ namespace ServerExplorer
// Preparar comando y parametros
da = new SqlDataAdapter(
"select col.COLUMN_NAME as Columna, " +
" col.DATA_TYPE as Tipo, " +
" col.CHARACTER_MAXIMUM_LENGTH as Tamanho, " +
" c.CONSTRAINT_TYPE as TipoClave " +
" from INFORMATION_SCHEMA.COLUMNS as col " +
" left join INFORMATION_SCHEMA.KEY_COLUMN_USAGE as k " +
" on col.COLUMN_NAME=k.COLUMN_NAME and " +
" col.TABLE_NAME=k.TABLE_NAME and " +
"SELECT col.COLUMN_NAME AS Columna, " +
" col.DATA_TYPE AS Tipo, " +
" col.CHARACTER_MAXIMUM_LENGTH AS Tamanho, " +
" c.CONSTRAINT_TYPE AS TipoClave, " +
" col.IS_NULLABLE AS Nullable " +
" FROM INFORMATION_SCHEMA.COLUMNS AS col " +
" LEFT JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE AS k " +
" ON col.COLUMN_NAME=k.COLUMN_NAME AND " +
" col.TABLE_NAME=k.TABLE_NAME AND " +
" col.TABLE_SCHEMA=k.TABLE_SCHEMA " +
" left join INFORMATION_SCHEMA.TABLE_CONSTRAINTS as c " +
" on k.CONSTRAINT_NAME=c.CONSTRAINT_NAME " +
" LEFT JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS AS c " +
" ON k.CONSTRAINT_NAME=c.CONSTRAINT_NAME " +
" WHERE col.TABLE_NAME=@nombreTabla AND " +
" col.TABLE_SCHEMA=@nombreEsquema " +
" order by col.ORDINAL_POSITION",
" ORDER BY col.ORDINAL_POSITION",
cnx);
prm = new SqlParameter("@nombreTabla", SqlDbType.VarChar, 100);
prm.Value = nombre;
@@ -119,6 +120,8 @@ namespace ServerExplorer
col.Primaria = true;
}
}
string strNullable=((String)dr["Nullable"]).ToLower();
col.Nullable = (strNullable == "yes");
}
}
@@ -170,6 +173,14 @@ namespace ServerExplorer
set { tamanho = value; }
}
private bool nullable = false;
[XmlAttribute("Nullable")]
public bool Nullable
{
get { return nullable; }
set { nullable = value; }
}
private bool primaria = false;
[XmlAttribute("Primaria")]
public bool Primaria