RecordList should be a List, not an ArrayList or an IList IEnumerable query = from t in db.Table where RecordList.Any(r => t.RecordId == r) select t; This will generate sql with parameters: SELECT * FROM Table WHERE RecordId in (@p0, @p1, @p2, @p3, @p4) Linq will generate as many parameters as are needed. You can use a WHERE condition to limit the list of columns to a specific table. The SELECT DISTINCT statement is used to return only distinct (different) values. SELECT @sql = 'SELECT ...FROM tbl WHERE col IN (' + @list + ')' There are all sorts of problems here. The following example finds the salaries of all employees, their average salary, and the difference between the salary of each employee and the average salary. For example: SELECT is probably the most commonly-used SQL statement. I just want to select from this list to use it for inserting another table as rows. One method is the use of temp tables. List of SQL Commands SELECT. -- Query to Get Column Names From Table in SQL Server USE [SQL Tutorial] GO SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = N'NewCustomers' Get Column Names From Table Example 2 This Frequently asked Questions explains how to find the list of Column names in a Table using sys.columns. SQL Subquery in the SELECT clause. Here is an example: SELECT NAME, COLUMN_ID FROM SYS.COLUMNS WHERE object_id = OBJECT_ID('Sales.Orders') In SQL Server 2017 & prior, the query plan on this manages to be even worse than calling STRING_SPLIT directly: SQL Server now only estimates that 1 row is coming out of the table variable, so now its estimate on the number of users it’ll find is down to just 55, and the sort spills even more pages to disk. (Just imagine that this is a large query spanning fifty lines that someone wrapped in dynamic SQL only because of the list). Linq to Sql. A subquery can be used anywhere an expression can be used in the SELECT clause. Applies to: SQL Server (all supported versions) Azure SQL Database Specifies a set of row value expressions to be constructed into a table. In this article. For example, in the code below, we’re selecting a column called name from a … There are three methods you can use to iterate through a result set by using Transact-SQL statements. I need to run sql . SQL Server (2005+) SELECT r.name, STUFF((SELECT ','+ a.name FROM APPLICATIONS a JOIN APPLICATIONRESOURCES ar ON ar.app_id = a.id WHERE ar.resource_id = r.id GROUP BY a.name FOR XML PATH(''), TYPE).value('. You'll use it pretty much every time you query data with SQL. Permissions can be a problem. Use Transact-SQL Statements to Iterate Through a Result Set. like that INSERT INTO table1(col1) (SELECT … Risk for SQL injection. With this method, you create a snapshot of the initial SELECT statement and use it as a basis for cursoring. It makes the code more difficult to read and maintain. ; Second, specify the source table and its schema name on the FROM clause. Code language: SQL (Structured Query Language) (sql) In this syntax: First, specify a list of comma-separated columns from which you want to query data in the SELECT clause. The SQL SELECT DISTINCT Statement. It allows you to define what data you want your query to return. Inside a table, a column often contains many duplicate values; and sometimes you only want to list the different (distinct) values. The Transact-SQL table value constructor allows multiple rows of data to be specified in a single DML statement.
Rockford Fosgate T1500-1bd Price,
The Website Is Down 2,
Skylight Installation Contractors,
Buffalo Wild Wings New Sauces,
Samsung Tv Game Mode Flickering Nintendo Switch,
