在 SQL Server 2008 R2 的查询中使用多个 like 子句和 dapper 进行分页

Question

我使用 Dapper 在大型 table 中进行分页查询。我使用的函数是这样的：

public List<WarehouseLine> GetPagedWarehouseLines(int pageNumber, int rowsPerPage, string criteria) //todo
{
    var query = @"SELECT *
                  FROM 
                      (SELECT 
                           *, 
                           ROW_NUMBER() OVER (ORDER BY ProductDescr) AS RowNum 
                       FROM 
                           WarehouseLine) AS whl 
                  WHERE 
                      whl.RowNum BETWEEN ((@PageNumber - 1) * @RowsPerPage) + 1 AND @RowsPerPage * (@PageNumber) 
                      AND (@Criteria) 
                  ORDER BY ProductDescr";

    return _db.Query<WarehouseLine>(query, new { PageNumber = pageNumber, RowsPerPage = rowsPerPage, Criteria = criteria }).ToList();
}

条件变量是一个字符串，其值如下

(Productdescr like '%%') OR (PartNumber like '%%') OR (SerialNumber like '%%') OR(Manufacturer like '%%') OR (SpecialInstructions like '%%') OR (UDF3 like '%%') OR (producttags like '%%') OR (NotesPerPart like '%%')

抛开括号，查询在 SQL Server Management Studio 中运行良好。但是在调试过程中，出现以下错误：

An expression of non-boolean type specified in a context where a condition is expected, near 'ORDER'.

我使用最新的 stable 版本的 Dapper。

Answer 1

'Criteria' 变量是 SQL 表达式的一部分，它不能被视为 SQL 参数。

var query = @"SELECT *
  FROM (
  SELECT *, 
  ROW_NUMBER() OVER (ORDER BY ProductDescr) AS RowNum 
  FROM WarehouseLine) AS whl 
  WHERE whl.RowNum BETWEEN ((@PageNumber-1)*@RowsPerPage)+1 
  AND @RowsPerPage*(@PageNumber) 
  AND " 
  + Criteria + 
  @"ORDER BY ProductDescr";

在 SQL Server 2008 R2 的查询中使用多个 like 子句和 dapper 进行分页

Using multiple like clauses with dapper for paging in a query with SQL Server 2008 R2

c#

sql

sql-server-2008-r2

dapper