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When using a stored procedure, you can use dynamic SQL when dynamically passing the table name or column name.CodeAs follows;
Alter procedure proc_updatedatetimecounter
@ Businessnum nvarchar (
200 ), -- Business number
@ Column nvarchar (
200 ), -- Column name
@ Value
Stored Procedures with search criteria paging and stored procedures with search criteria
This storage process mainly involves two aspects:
1. dynamically splice the paging of query Conditions
2. Dynamically Retrieve the total numb
Trancate Delete Common table expression Modify viewTable Union : The number of Union columns has not changed, and the result set can be merged without altering the result structure. Multiple Select. The number of rows increased.Table ConnectionTo change the number of columns, a table of 3 columns and 9 columns merged into 12 columns is called a connectioncross-linking : The Cartesian product of crosses two
(@ day as varchar (4 ))GO
How to call user-defined functions in SQL Server Stored Procedures
A function that returns a single value. It can be used as a variable, for example, select dbo. function Name (parameter 1, parameter 2 ,...) from... where abc = dbo. function Name (
. These records are not read from the table, but custom data rows.
To demonstrate how to use C # To develop SQL Server Stored Procedures for these applications, I will give examples one by one.
EnableCLRIntegration
Before using C # To write a stored procedure, you must
table_name = ' table name '[n]. [Title]:Select * from TableName Order by CustomerName[n]. [Title]:8. How to modify the name of the database:Sp_renamedb ' Old_name ', ' new_name '9. Copy only one table structure and not copy dataSelect top 0 * into [T1] from [T2]10. Connecting to a remote databaseSELECT * from OpenData
SQL Server database stored procedures Introduction, server Stored Procedures
What is stored procedure
If you have been familiar with other programming languages, you can understand that the st
The use of data types in database programming can improve the reusability of code. They are often used in methods and stored procedures. Using the data type, we can avoid defining a bunch of parameters in the stored procedure, which is the equivalent of the object-oriented language. An object is passed into a method, and the object has a variety of properties, an
Gets the modification time of the stored procedure and the creation time of the query--Table select * from sysobjects where id=object_id (N ' table name ') and xtype= ' U ' --table structure select * from syscolumns where id=obje ct_id (N '
SQL stored procedures update data through multiple IDs, SQL stored procedures
The following is an example:
I want to add 1 to the name of some brands (that is, Brand_Name), and Brand_ID
1. Replace all table names with dbo2. The stored procedure is all replaced with dboAnd then in the runAbout SQL data table stored procedure table name prefixes replaced with dbo code
values in the watch window or move the cursor over the parameter name in the stored procedure.
Figure 2:The debugger stops at the first statement of the stored procedure.
To skip a stored procedure as a statement, click the step over button in the toolbox or press F10. The products_selectbycategoryid
SQL transactions (stored procedures and transactions) and SQL transaction stored procedures
C # two more methods for executing SQL transactions (summarized by myself)1.
returned value
///
Publicvoid ShowData4 ()
{
SqlConnection con = new SqlConnection (strConString );
SqlCommand cmd = new SqlCommand ("select_MathResult", con );
Cmd. CommandType = CommandType. StoredProcedure;
SqlParameter [] parameter = {
New SqlParameter ("@ activityName", SqlDbType. NVarChar, 50 ),
New SqlParameter ("@ result", SqlDbType. Int, 4)
};
Parameter [0]. Value = "";
// Set the output method direction of the output parameter
Parameter [1]. Direction = Para
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