CREATE TABLE #tmpTable ( COL1 int, COL2 int, COL3 nvarchar(max), COL4 nvarchar(max), COL5 bit ) INSERT INTO #tmpTable exec SpGetRecords ‘Params’ NOTE: The columns of #tmpTable must be the same as SpGetRecords. Otherwise, there will be a problem. If there are no parameters in the stored procedure, you don’t need to use ‘Params’.
The OUTPUT clause was introduced in SQL Server 2005. The OUTPUT clause returns the values of each row that was affected by an INSERT, UPDATE, or DELETE statement. It even supports a MERGE statement, which was introduced in SQL Server 2008 version. The OUTPUT clause has access to two temporary or in-memory SQL tables, INSERTED […]
If you have two tables A and B, both with column C, here are the records, which are present in the table A but not in B: SELECT A.* FROM A LEFT JOIN B ON (A.C = B.C) WHERE B.C IS NULL To get all the differences with a single query, a full join must be used, like this: […]
To create a single string from multiple rows in MySQL, you can use the GROUP_CONCAT function. This function allows you to concatenate values from multiple rows into a single string, separated by a specified delimiter. Here is an example of how you can use this function: SELECT GROUP_CONCAT(column_name ORDER BY column_name ASC SEPARATOR ‘,’) FROM […]
Just add defaultValue parameter in CreateTable method for property: public partial class TestSimpleEntity : DbMigration { public override void Up() { CreateTable( “dbo.SimpleEntities”, c => new { id = c.Long(nullable: false, identity: true), name = c.String(), deleted = c.Boolean(nullable: false, defaultValue: true), }) .PrimaryKey(t => t.id); } public override void Down() { DropTable(“dbo.SimpleEntities”); } } After that, run update-database -verbose command, […]
protected void grid_InitNewRow(object sender, DevExpress.Web.Data.ASPxDataInitNewRowEventArgs e) { e.NewValues[“BirthDate”] = new DateTime(1970, 1, 10); e.NewValues[“Title”] = “Sales Representative”; } Here is the result:
If you only want to match N” as an empty string SELECT COLUMN FROM TABLE WHERE DATALENGTH(COLUMN) > 0 If you want to count any string consisting entirely of spaces as empty SELECT COLUMN FROM TABLE WHERE COLUMN <> ” If you want to use DATALENGTH for any string consisting entirely of spaces then you […]
SELECT m1.Column1, m1.Column2, m1.Column3, r.MaxTime FROM ( SELECT Column1, MAX(TimeColumn) as MaxTime FROM MyTable GROUP BY Column1 ) r INNER JOIN MyTable m1 ON m1.Column1= r.Column1AND m1.TimeColumn = r.MaxTime
just add “$(“th”).show();” in the end of initComplete … , initComplete: function () { … $(“th”).show(); } , …
The UNIQUE constraint ensures that all values in a column are different. Both the UNIQUE and PRIMARY KEY constraints provide a guarantee for uniqueness for a column or set of columns. A PRIMARY KEY constraint automatically has a UNIQUE constraint. However, you can have many UNIQUE constraints per table, but only one PRIMARY KEY constraint […]
EXEC sp_RENAME ‘TableName.OldColumnName’ , ‘NewColumnName’, ‘COLUMN’
There is NO way to alter computed column. You have to drop and recreate it. Let’s say you have a table with 3 column. And the 3rd one is the sum of the other two: CREATE TABLE MyTable (Column1 int, Column2 int, Column3 AS Column1 + Column2); If you want to change that computed column as multiply of the other […]
You can use code below:
The following code shows how to group by two columns (“Country” and “City”).
If there is no default value for the column then you can use this query: ALTER TABLE MyTable ADD CONSTRAINT df_MyTable_MyColumn DEFAULT 0 FOR MyColumn
protected void GridView_RowDataBound(object sender, GridViewRowEventArgs e) { e.Row.Cells[index].Visible = false; }