public void GetLimitString()
{
var d = new MsSql2012Dialect();
SqlString str = d.GetLimitString(new SqlString("select distinct c.Contact_Id as Contact1_19_0_, c.Rating as Rating2_19_0_, c.Last_Name as Last_Name3_19_0, c.First_Name as First_Name4_19_0 from dbo.Contact c where COALESCE(c.Rating, 0) > 0 order by c.Rating desc , c.Last_Name , c.First_Name"), new SqlString("111"), new SqlString("222"));
Assert.AreEqual(
"select distinct c.Contact_Id as Contact1_19_0_, c.Rating as Rating2_19_0_, c.Last_Name as Last_Name3_19_0, c.First_Name as First_Name4_19_0 from dbo.Contact c where COALESCE(c.Rating, 0) > 0 order by c.Rating desc , c.Last_Name , c.First_Name OFFSET 111 ROWS FETCH FIRST 222 ROWS ONLY",
str.ToString());
str = d.GetLimitString(new SqlString("SELECT fish.id FROM fish"), new SqlString("111"), new SqlString("222"));
Assert.AreEqual(
"SELECT fish.id FROM fish ORDER BY CURRENT_TIMESTAMP OFFSET 111 ROWS FETCH FIRST 222 ROWS ONLY",
str.ToString());
str = d.GetLimitString(new SqlString("SELECT DISTINCT fish_.id FROM fish fish_"), new SqlString("111"), new SqlString("222"));
Assert.AreEqual(
"SELECT DISTINCT fish_.id FROM fish fish_ ORDER BY CURRENT_TIMESTAMP OFFSET 111 ROWS FETCH FIRST 222 ROWS ONLY",
str.ToString());
str = d.GetLimitString(new SqlString("SELECT DISTINCT fish_.id as ixx9_ FROM fish fish_"), new SqlString("111"), new SqlString("222"));
Assert.AreEqual(
"SELECT DISTINCT fish_.id as ixx9_ FROM fish fish_ ORDER BY CURRENT_TIMESTAMP OFFSET 111 ROWS FETCH FIRST 222 ROWS ONLY",
str.ToString());
str = d.GetLimitString(new SqlString("SELECT * FROM fish ORDER BY name"), new SqlString("111"), new SqlString("222"));
Assert.AreEqual(
"SELECT * FROM fish ORDER BY name OFFSET 111 ROWS FETCH FIRST 222 ROWS ONLY",
str.ToString());
str = d.GetLimitString(new SqlString("SELECT fish.id, fish.name FROM fish ORDER BY name DESC"), new SqlString("111"), new SqlString("222"));
Assert.AreEqual(
"SELECT fish.id, fish.name FROM fish ORDER BY name DESC OFFSET 111 ROWS FETCH FIRST 222 ROWS ONLY",
str.ToString());
str = d.GetLimitString(new SqlString("SELECT * FROM fish LEFT JOIN (SELECT * FROM meat ORDER BY weight) AS t ORDER BY name DESC"), new SqlString("111"), new SqlString("222"));
Assert.AreEqual(
"SELECT * FROM fish LEFT JOIN (SELECT * FROM meat ORDER BY weight) AS t ORDER BY name DESC OFFSET 111 ROWS FETCH FIRST 222 ROWS ONLY",
str.ToString());
str = d.GetLimitString(new SqlString("SELECT *, (SELECT COUNT(1) FROM fowl WHERE fish_id = fish.id) AS some_count FROM fish"), new SqlString("111"), new SqlString("222"));
Assert.AreEqual(
"SELECT *, (SELECT COUNT(1) FROM fowl WHERE fish_id = fish.id) AS some_count FROM fish ORDER BY CURRENT_TIMESTAMP OFFSET 111 ROWS FETCH FIRST 222 ROWS ONLY",
str.ToString());
str = d.GetLimitString(new SqlString("SELECT * FROM fish WHERE scales = ", Parameter.Placeholder), new SqlString("111"), new SqlString("222"));
Assert.AreEqual(
"SELECT * FROM fish WHERE scales = ? ORDER BY CURRENT_TIMESTAMP OFFSET 111 ROWS FETCH FIRST 222 ROWS ONLY",
str.ToString());
str = d.GetLimitString(new SqlString("SELECT f.Type, COUNT(DISTINCT f.Name) AS Name FROM Fish f GROUP BY f.Type ORDER BY COUNT(DISTINCT f.Name)"), new SqlString("111"), new SqlString("222"));
Assert.AreEqual(
"SELECT f.Type, COUNT(DISTINCT f.Name) AS Name FROM Fish f GROUP BY f.Type ORDER BY COUNT(DISTINCT f.Name) OFFSET 111 ROWS FETCH FIRST 222 ROWS ONLY",
str.ToString());
}
public void OnlyOffsetLimit()
{
var d = new MsSql2012Dialect();
SqlString str = d.GetLimitString(new SqlString("select distinct c.Contact_Id as Contact1_19_0_, c._Rating as Rating2_19_0_ from dbo.Contact c where COALESCE(c.Rating, 0) > 0 order by c.Rating desc , c.Last_Name , c.First_Name"), null, new SqlString("10"));
Assert.That(str.ToString(), Is.EqualTo("select distinct c.Contact_Id as Contact1_19_0_, c._Rating as Rating2_19_0_ from dbo.Contact c where COALESCE(c.Rating, 0) > 0 order by c.Rating desc , c.Last_Name , c.First_Name OFFSET 0 ROWS FETCH FIRST 10 ROWS ONLY"));
}
public void GetLimitStringWithInnerOrder()
{
var d = new MsSql2012Dialect();
var str = d.GetLimitString(new SqlString("SELECT * FROM A LEFT JOIN (SELECT top 7 * FROM B ORDER BY name) AS B on A.Name = B.Name"), new SqlString("111"), new SqlString("222"));
Assert.AreEqual(
"SELECT * FROM A LEFT JOIN (SELECT top 7 * FROM B ORDER BY name) AS B on A.Name = B.Name ORDER BY CURRENT_TIMESTAMP OFFSET 111 ROWS FETCH FIRST 222 ROWS ONLY",
str.ToString());
}
public void GetLimitStringWithSqlCommonTableExpression()
{
const string SQL = @"
WITH DirectReports (ManagerID, EmployeeID, Title, DeptID, Level)
( -- Anchor member definition
SELECT ManagerID, EmployeeID, Title, Deptid, 0 AS Level
FROM MyEmployees
WHERE ManagerID IS NULL
UNION ALL
-- Recursive member definition
SELECT e.ManagerID, e.EmployeeID, e.Title, e.Deptid, Level + 1
FROM MyEmployees AS e
INNER JOIN DirectReports AS ON e.ManagerID = d.EmployeeID
)
-- Statement that executes the CTE
SELECT ManagerID, EmployeeID, Title, Level
FROM DirectReports";
const string EXPECTED_SQL = @"
WITH DirectReports (ManagerID, EmployeeID, Title, DeptID, Level)
( -- Anchor member definition
SELECT ManagerID, EmployeeID, Title, Deptid, 0 AS Level
FROM MyEmployees
WHERE ManagerID IS NULL
UNION ALL
-- Recursive member definition
SELECT e.ManagerID, e.EmployeeID, e.Title, e.Deptid, Level + 1
FROM MyEmployees AS e
INNER JOIN DirectReports AS ON e.ManagerID = d.EmployeeID
)
-- Statement that executes the CTE
SELECT ManagerID, EmployeeID, Title, Level
FROM DirectReports ORDER BY CURRENT_TIMESTAMP OFFSET 0 ROWS FETCH FIRST 2 ROWS ONLY";
var d = new MsSql2012Dialect();
var limitSqlQuery = d.GetLimitString(new SqlString(SQL), null, new SqlString("2"));
Assert.That(limitSqlQuery, Is.Not.Null);
Assert.That(limitSqlQuery.ToString(), Is.EqualTo(EXPECTED_SQL));
}
public void GetLimitStringWithSqlComments()
{
var d = new MsSql2012Dialect();
var limitSqlQuery = d.GetLimitString(new SqlString(" /* criteria query */ SELECT p from lcdtm"), null, new SqlString("2"));
Assert.That(limitSqlQuery, Is.Not.Null);
Assert.That(limitSqlQuery.ToString(), Is.EqualTo(" /* criteria query */ SELECT p from lcdtm ORDER BY CURRENT_TIMESTAMP OFFSET 0 ROWS FETCH FIRST 2 ROWS ONLY"));
}
private static void VerifyLimitStringForStoredProcedureCalls(string sql)
{
var d = new MsSql2012Dialect();
var limitSql = d.GetLimitString(new SqlString(sql), null, new SqlString("2"));
Assert.That(limitSql, Is.Null, "Limit only: {0}", sql);
limitSql = d.GetLimitString(new SqlString(sql), new SqlString("10"), null);
Assert.That(limitSql, Is.Null, "Offset only: {0}", sql);
limitSql = d.GetLimitString(new SqlString(sql), new SqlString("10"), new SqlString("2"));
Assert.That(limitSql, Is.Null, "Limit and Offset: {0}", sql);
}