PHP中使用mysqli扩展库连接MariaDB,并设置multipleStatements参数为true: 代码语言:txt 复制 $mysqli = new mysqli("localhost", "username", "password", "database"); $mysqli->multi_query("SET SESSION sql_mode='NO_BACKSLASH_ESCAPES', @@SESSION.sql_mode='NO_BACKSLASH_ESCAPES'"); $mysqli->optio...
Can row_number() work in UNION STATEMENTS ? Can someone explain just exactly why xp_cmdshell is such a massive risk?! Can SQL Profiler give you the Missing Index information? Can Symmetric keys be used in a view? Can table-valued parameter be null? Can the "print" command be told not...
Update multiple columns and conditional updates with CASE statements The CASE statement can be used to conditionally update columns based on specific criteria. This allows for more granular control over which values are updated and under what circumstances, adding flexibility to SQL updates. For example...
SQLLEN c; rc = SQLRowCount(stmt, &c); if(SQL_SUCCEEDED(rc)) { count += c; // If we can't return separate counts, maybe we should return a sum of all counts? } } else { // NOTE: You can choose to only keep the first error, build a list of errors, etc. error = my_er...
Imports System.Data.SqlClient Module Module1 Sub Main() Dim x As Integer = 1 If x = 1 Then Try Using con As New SqlConnection("TheConnectionstringToTheDataBase") con.Open() Using com As New SqlCommand("Whatever SQL String", con) com.ExecuteNonQuery() com.CommandText = "Whatever SQL ...
Example: Multiple Recordset Objects for Multiple SQL Statements in a Single Command Const DS = "MySqlServer" Const DB = "Northwind" Const DP = "SQLOLEDB" Dim objRs As New ADODB.Recordset Dim CommandText As String Dim ConnctionString As String CommandText = "SELECT OrderID, " & _ "ShipNam...
As long as you are not issuing millions of inserts, this shouldn't impact your performance too much. Multiple sql statements in one command is certainly more elegant, but we'll have to wait until v. 5.xx.xx is stable. Finally, have you tried the MySQL .Net driver? I believe it has...
I was wondering whether there is a way to check if LINQ query will be translated to single SQL query/statement or multiple SQL queries/statements when using AsSplitQuery() extension method or QuerySplittingBehavior.SplitQuery option in m...
This behavior is common for UPDATE and DELETE triggers because these statements frequently affect multiple rows. The behavior is less common for INSERT triggers because the basic INSERT statement adds only a single row. However, because an INSERT trigger can be fired by an INSERT INTO (table_...
This is running against an Azure SQL database and I am almost sure this worked before in previous version. Its been a month or two since I needed to run something like this, so cannot be sure. I switch between SQL Management Studio and 0xDBE depending on which environment...