sql-server

问题 I'm trying to use the SqlBulkCopy class from the System.Data assembly (4.6.1) to bulk insert a table with a geospatial data type, using code that looks roughly like this (adapted from https://github.com/MikaelEliasson/EntityFramework.Utilities): public void InsertItems<T>(IEnumerable<T> items, string schema, string tableName, IList<ColumnMapping> properties, DbConnection storeConnection, int? batchSize) { using (var reader = new EFDataReader<T>(items, properties)) { var con = (SqlConnection

问题 I'm trying to use the SqlBulkCopy class from the System.Data assembly (4.6.1) to bulk insert a table with a geospatial data type, using code that looks roughly like this (adapted from https://github.com/MikaelEliasson/EntityFramework.Utilities): public void InsertItems<T>(IEnumerable<T> items, string schema, string tableName, IList<ColumnMapping> properties, DbConnection storeConnection, int? batchSize) { using (var reader = new EFDataReader<T>(items, properties)) { var con = (SqlConnection

问题 I want to make SQL Server scritp for creating database if not exist. IF NOT EXISTS(SELECT * FROM sys.databases WHERE name = 'DataBase') BEGIN CREATE DATABASE DataBase USE DataBase CREATE TABLE TableName ( Id INT PRIMARY KEY IDENTITY (1, 1), Name VARCHAR(100) ) --more tables here --some procedures here too END From code above i getting this error: Msg 911, Level 16, State 1, Line 5 Database 'DataBase' does not exist. Make sure that the name is entered correctly. How to make database with

问题 I want to make SQL Server scritp for creating database if not exist. IF NOT EXISTS(SELECT * FROM sys.databases WHERE name = 'DataBase') BEGIN CREATE DATABASE DataBase USE DataBase CREATE TABLE TableName ( Id INT PRIMARY KEY IDENTITY (1, 1), Name VARCHAR(100) ) --more tables here --some procedures here too END From code above i getting this error: Msg 911, Level 16, State 1, Line 5 Database 'DataBase' does not exist. Make sure that the name is entered correctly. How to make database with

问题 currently i'm struggling with my current project. I was tasked to replace the use of Username/Password based Authentication/Connection to SQL Server (2014) and replace it with a Certificate based Authentication/Connection one. So probably my questions are: Is this possible with SQL Server ? The idea is to no longer include the username/password combination to connect to the Database Instance from the Server. This then would be replaced by a certificate where, ideally would hold all the login

问题 i have a table with one line per travel second table has values of origin and destination and quantity for each combination i need to run an update that run on the second table that update top N rows on the first table (n comes from the second table) im using this update script inside a cursor in a procedure : ALTER PROCEDURE [dbo].[SP_Travels_History_FromMissing] AS BEGIN SET NOCOUNT ON; DECLARE @C_Day_Type_Code INT = NULL DECLARE @C_PartOfDay_Code INT = NULL DECLARE @C_Station_From INT =

问题 I have 2 tables, one of them has 2 foreign keys and another has 2 composite foreign keys in it. Whenever I try to run the query, it says error and could not create constraint or index. So I have two tables here. I know I'm completely wrong, I apologize for that as I'm kind of new to coding. create table Booking ( BookingID char(4) primary key, dateBooked datetime not null, creditCard char(16) null, expiryDate datetime not null, CVC char (3) not null, confirmationID char(4) not null,

问题 I am trying to export my stored procedure to a .csv file using BCP. It does give me a output file in .CSV but it does not print column name. Below is the script. Please look at and let me know what i am missing DECLARE @command VARCHAR(4000) declare @fulldate varchar(30) = convert(varchar,GETDATE(),112) declare @year varchar(30) = left(@fulldate,4) declare @day varchar(30) = right(@fulldate,2) declare @month varchar(30) = left(right(@fulldate,4),2) DECLARE @FileDirectory VARCHAR(1000) = 'c:\'

问题 How can I convert binary (base 2 stored as varchar) into decimal (base 10 stored as int or bigint) and the other way around, using T-SQL? Example results: 7 (dec) <--> 111 (bin) 136 (dec) <--> 10001000 (bin) 2123942362 (dec) <--> 1111110100110001100100111011010 (bin) 回答1: This answer can handle bigint Convert to bit(varchar containing 1 and 0) DECLARE @input BIGINT = 9223372036854775807 ;WITH N(N)AS ( SELECT top 63 POWER(cast(2 as bigint), ROW_NUMBER()over(ORDER BY (SELECT 1))-1) FROM (VALUES

问题 How can I convert binary (base 2 stored as varchar) into decimal (base 10 stored as int or bigint) and the other way around, using T-SQL? Example results: 7 (dec) <--> 111 (bin) 136 (dec) <--> 10001000 (bin) 2123942362 (dec) <--> 1111110100110001100100111011010 (bin) 回答1: This answer can handle bigint Convert to bit(varchar containing 1 and 0) DECLARE @input BIGINT = 9223372036854775807 ;WITH N(N)AS ( SELECT top 63 POWER(cast(2 as bigint), ROW_NUMBER()over(ORDER BY (SELECT 1))-1) FROM (VALUES