private void btnGenerate_Click(object sender, EventArgs e)
{
DataRowView row = this.bindsrc.Current as DataRowView;
if (row == null)
{
MessageBox.Show("当前没有选择任何的表，无法生成。", "警告", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return;
}
string tblName = row["TblName"].ToString();
string strSQL = @"
SELECT clmns.name AS [ColName]
FROM sys.tables AS tbl
INNER JOIN sys.all_columns AS clmns ON clmns.object_id=tbl.object_id
WHERE tbl.name = '" + tblName + @"' AND SCHEMA_NAME(tbl.schema_id)=N'dbo'
ORDER BY clmns.column_id ASC" ;
DataSet ds = SqlDAL.ExecuteQuery(strSQL);
if (this.rbtnSelect.Checked)
{
this.txtResult.Text = this.getSelectSQL(ds.Tables[0], tblName);
}
else if (this.rbtnInsert.Checked)
{
this.txtResult.Text = this.getInsertSQL(ds.Tables[0], tblName);
}
else
{
this.txtResult.Text = this.getUpdateSQL(ds.Tables[0], tblName);
}
}
private void btBackupDB_Click(object sender, EventArgs e)
{
string strSQL = "BACKUP DATABASE " + currentDbName + " TO DISK= '"
+ getBakFileName() + "' WITH INIT";
SqlDAL.ExecuteCmd(strSQL);
MessageBox.Show("Backup database successed!", "information", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
}
private string getBakFileName()
{
string strSQL = "SELECT TOP 1 [filename] FROM [sysfiles]";
DataTable tbl = SqlDAL.ExecuteQuery(strSQL).Tables[0];
if (tbl == null || tbl.Rows.Count <= 0)
{
MessageBox.Show("Unkowns database path name. Backup failed!", "Notice", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return("");
}
return(tbl.Rows[0][0].ToString().Replace(".mdf", DateTime.Now.ToString("yyyyMMdd_HHmmss") + ".bak"));
}
private string getUpdateSQL(DataTable tblColumns, string strTable)
{
// 1 取得主键
string strKey = @"
SELECT ind.name, dsp.name as space_name, col.name as column_nName, ind_col.key_ordinal, ind_col.column_id
FROM sys.indexes ind
LEFT OUTER JOIN sys.stats sta ON sta.object_id = ind.object_id and sta.stats_id = ind.index_id
LEFT OUTER JOIN
(
sys.index_columns ind_col INNER JOIN sys.columns col
ON col.object_id = ind_col.object_id and col.column_id = ind_col.column_id
)ON ind_col.object_id = ind.object_id and ind_col.index_id = ind.index_id
LEFT OUTER JOIN sys.data_spaces dsp ON dsp.data_space_id = ind.data_space_id
WHERE ind.object_id = object_id(N'" + strTable + @"') AND ind.index_id >= 0 AND ind.type <> 3 AND ind.is_hypothetical = 0
ORDER BY ind.index_id, ind_col.key_ordinal";
DataTable keyTable = SqlDAL.ExecuteQuery(strKey).Tables[0];
List <string> lstKey = new List <string>();
foreach (DataRow r in keyTable.Rows)
{
lstKey.Add(r["column_nName"].ToString());
}
string strResult = "UPDATE dbo." + strTable + " SET ";
foreach (DataRow r in tblColumns.Rows)
{
// 如果该字段不是key field
if (!lstKey.Contains(r[0].ToString()))
{
//03 判断是否转换小写
if (this.chkLower.Checked)
{
strResult += r[0].ToString().ToLower() + " = @" + r[0].ToString().ToLower() + ", ";
}
else
{
strResult += r[0].ToString() + " = @" + r[0].ToString() + ", ";
}
}
}
strResult = strResult.Remove(strResult.Length - 2) + Environment.NewLine + "WHERE ";
foreach (string r in lstKey)
{
strResult += r + " = @" + r + " AND ";
}
return(strResult.Remove(strResult.Length - 4));
}
private void fillTablesList()
{
string strSQL = @"
SELECT tbl.name AS [TblName]--,SCHEMA_NAME(tbl.schema_id) AS [Schema], tbl.create_date AS [CreateDate]
FROM sys.tables AS tbl
WHERE
(CAST(
case
when tbl.is_ms_shipped = 1 then 1
when ( select major_id from sys.extended_properties
where major_id = tbl.object_id and minor_id = 0 and class = 1 and name = N'microsoft_database_tools_support')
is not null then 1 else 0
end
AS bit)=0)
ORDER BY [TblName] ASC";
DataSet ds = SqlDAL.ExecuteQuery(strSQL);
this.bindsrc.DataSource = ds.Tables[0];
this.gridTables.DataSource = this.bindsrc;
}
private void fillDbList()
{
string strSQL = @"
SELECT
dtb.name AS [Database_Name],
dtb.name AS [Database_DatabaseName2]
FROM master.sys.databases AS dtb
LEFT OUTER JOIN sys.database_mirroring AS dmi ON dmi.database_id = dtb.database_id
WHERE
( CAST(case when dtb.name in ('master','model','msdb','tempdb') then 1 else dtb.is_distributor end AS bit)=0
AND CAST(isnull(dtb.source_database_id, 0) AS bit)=0)
ORDER BY [Database_Name] ASC";
DataSet ds = SqlDAL.ExecuteQuery(strSQL);
this.cmbDb.Items.Clear();
this.cmbDb.SelectedIndex = -1;
foreach (DataRow r in ds.Tables[0].Rows)
{
this.cmbDb.Items.Add(r[0]);
}
}