To select first 10 elements from a database using SQL ORDER BY clause with LIMIT 10. In this example, we show you how to Select First Row from each SQL Group. To find the top N rows in Oracle SQL, there is one recommended way to do it. I would like to display only the first 10 results from the following query: SELECT a.names, COUNT(b.post_title) AS num. In this example, we show you how to Select First Row from each SQL Group. SKIP clause was introduced in a v10.00.xC4 fixpack) SELECT TOP 10 * FROM T: MS SQL Server, SAP ASE, MS Access, SAP IQ, Teradata: SELECT * FROM T SAMPLE 10. Related tasks: Optimizing retrieval for a small set of rows. Can you suggest me a good example wtihout using temp table. For example, the following statement will delete all rows from the target_table: DELETE FROM target_table; Second, to specify the number or percent of random rows that will be deleted, you use the TOP clause. The following SQL Query will. Parent topic: subselect. Previous: Write a query to check if the first_name fields of the employees table contains numbers When you run the above code every single time you will see a different set of 10 rows. SQL to return the first record in a group. The expression is evaluated to a float value if PERCENT is used, otherwise, it is converted to a BIGINT value.. It’s like a for loop in SQL. SQL Server - How to fetch first 10 rows from list of 100s. To select first 10 records, we can first order the records in ascending or descending order. Even though the query requested 10 rows, because it had the WITH TIES option, the query returned two more additional rows. Contribute your code (and comments) through Disqus. SELECT au_lname FROM authors ORDER BY au_lname You use the LIMIT clause to constrain the number of rows returned by the query. Question: How to skip top N Rows in SQL Server and retrieve the rest of the rows? Insert some records in the table using insert command. How do I select four random tables from a MySQL database having thousands of tables. Permalink. We can select the first row from the group using SQL or DataFrame API, in this section, we will see with DataFrame API using a window function row_rumber and partitionBy. In this tutorial, you have learned how to use the SQL ServerOFFSET FETCH clauses the limit the number of rows returned by a query. First, partition the data by Occupation and assign the rank number using the yearly income. Following the TOP keyword is an expression that specifies the number of rows to be returned. regards, gopinath g. query to fetch top 10 row - Asked By sakthi kumaran on 10-Oct-05 07:34 AM. Hi there I was looking for such an SQL query that it will give me the first 20 records but it will skip the first 10 There are some LIMIT and OFFSET … The following is an example. This can also work in SQL Server. I'll cover the following topics in the code samples below: SQL Server 2000, SQL Server, Declare, Date, ROWCOUNT, and Rows. Teradata: SELECT TOP 20, 10 * FROM T: OpenLink Virtuoso (skips 20, … Answer: I had asked the above question in one of the interviews last week and to my surprise, I have received a lot of solution with the help of Ranking Function, TempTables, CTEs, and subqueries but had received no answer with OFFSET and FETCH keywords of SQL Server. The SQL:2008 Top-N records clause is supported in Oracle since 12c, SQL Server since 2012, and PostgreSQL since 8.4. The following SQL statement selects the first three records from the "Customers" table, where the country is "Germany" (for SQL Server/MS Access): Example. SQL ROW_NUMBER Function Example. SELECT column FROM table FETCH FIRST 10 ROWS ONLY. Sql server MAX value row get. How to fetch first 10 rows from list of 100s hi friends, I want to fetch the first 10 rows from a table which consists of some 100+ rows. Sravan, the correct SQL should be: select top 100 * from tablename; Teradata Help had left out the start “*”. In this syntax, the SELECT statement can have other clauses such as WHERE, JOIN, HAVING, and GROUP BY.. expression. How to select all the characters after the first 20 characters from a column in MySQL? OFFSET excludes the first set of records. Let’s select top 10 and then the columns, first name, last name and so on from sales person. The following query will return everything but the first 10 names: select skip 10 id, name from People order by name asc. – user58700 Feb 28 '17 at 6:13 To select first 10 elements from a database using SQL ORDER BY clause with LIMIT 10. The SQL ROW_NUMBER Function allows you to assign the rank number to each record present in a partition. OUTOBS = restricts the number of rows returned from your query, so outobs = 10 would return only the first 10 rows. While SQL Server supports the SQL:2008 Top-N standard syntax, you need to provide the OFFSET clause as well: SELECT title FROM post ORDER BY id DESC OFFSET 0 ROWS FETCH FIRST 5 ROWS ONLY In this tutorial, you have learned how to use the Db2 LIMIT clause to restrict the number of rows returned by a query. C) Limit by percentage of rows example. The SAMPLE command will give DIFFERENT results each time you run it. > SELECT * FROM tbl LIMIT 10 -> to get the first 10 rows The order in which the above query returns records is unpredictable, and depends on e.g. There are often times when retrieving results from a database that you only are interested in displaying the first N records from the resulting query. I find this method very effective and would love to know your feedback about the same. How to select one row from multiple rows in SQL. To select top 10 records, use LIMIT in MySQL. The expression is evaluated to a float value if PERCENT is used, otherwise, it is converted to a BIGINT value.. So, method number one is to simply use the SQL syntax that is native to your database to limit the number of rows returned. SELECT TOP 3 * FROM Customers I have inherited a database that has 15 tables, and I would like to see the first 10 or so rows of each table. The cursor c is a SELECT statement that returns the rowids that contain the word omophagia in sorted order. DB2 Express-C is free and it is a great choice. thanks a lot. Correlated subqueries are subqueries that depend on the outer query. Ca. 1 view. The SELECT TOP clause is used to specify the number of records to return. SELECT * FROM USER_TAB FETCH FIRST 10 ROWS ONLY; Will fetch first 10 rows from the table USER_TAB. Note that the “ first row ” of each set is unpredictable unless ORDER BY is used to ensure that the desired row appears first. Here is the query to select first 10 elements. SELECT TOP 10 FirstName, LastName, SalesLastYear FROM Sales.vSalesPerson ORDER BY SalesLastYear Desc . For example: SELECT DISTINCT ON (location) location, time, report FROM weather_reports ORDER BY location, time DESC; retrieves the most recent weather report for each location. This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. This is where sort order matters so be sure to use an ORDER BY clause appropriately. Returning only the first N records in postgresql can be accomplished using limit keyword. How to write a MySQL query to select first 10 records? Column access controls do no affect the FETCH FIRST clause. Following the TOP keyword is an expression that specifies the number of rows to be returned. I’m also not sure if I agree that “top” will be guaranteed to return the same records each time–you might need to specify the “order by” clause if you want to guarantee repeatability. If the FETCH FIRST clause is specified in the outermost fullselect of a SELECT statement that contains a data change statement (an INSERT, DELETE, UPDATE, or MERGE statement), all rows are processed by the specified data change statement, but only the number of rows that is specified in the FETCH FIRST clause are returned in the final result table. The first approach is to use an embedded select. SELECT NationalIDNumber, JobTitle, HireDate FROM HumanResources.Employee ORDER BY HireDate OFFSET 10 ROWS FETCH NEXT 5 ROWS ONLY In the following diagram you can see OFFSET and FETCH at work. As the title suggests, I'd like to select the first row of each set of rows grouped with a GROUP BY. The SELECT TOP clause can be very useful on large tables with thousands of records. When specified in the MERGE statement, the TOP clause applies after the entire source table and the entire target table are joined. val w2 = Window.partitionBy("department").orderBy(col("salary")) df.withColumn("row",row_number.over(w2)) .where($"row" === 1).drop("row") .show() On above snippet, first, we are partitioning on department … To understand the above syntax, let us create a table. Notice the double parentheses: select skip ((select count(*) - 10 from People)) id, name from People order by name asc The above code helps with that, but I would like to export them all to one document or file, in order to get an idea of what each table contains. 0 Likes Reply. ExamScore: (See SELECT List below.) PERCENT. And this one returns the last 10 rows. The SQL SELECT TOP Clause. In MySQL, we can use the LIMIT keyword to return the first 10 rows of the table: SELECT * FROM Table_Name LIMIT 10; I recommend this SQL training course by Intellipaat to become an expert in SQL. OUTOBS= restricts the number of rows returned from your query, so outobs = 10 would return only the first 10 rows. Oracle SQL: select first n rows / rows between n and m (top n/limit queries) At times, it's necessary to select the first n rows or the rows between n and m (paging) from a table or query. The other method is to use the TOP command: sel top 100 from tablename; This will give the first 100 rows of the table. Actually there is no such thing as "the first 10 rows". Let's look at how to use a SELECT statement with a LIMIT clause in SQL. Select query in SQL row and all related rows? Automatically duplicate rows in SQL server 2008 r2 select query. The PERCENT keyword indicates that the query returns the first … The only way to define first and last rows are by an order by clause. Was this tutorial helpful ? SET ROWCOUNT 10. To return only the rows of the employee table for those 20 employees, you can write a query as shown in the following example: SELECT LASTNAME, FIRSTNAME, EMPNO, SALARY FROM EMP ORDER BY SALARY DESC FETCH FIRST 20 ROWS ONLY; You can also use FETCH FIRST n ROWS … Proc SQL - to get first row and last 5 rows Posted 07-17-2014 07:44 AM (12408 views) I was wondering for Proc SQL code to generate the report with first row and last 5 rows from 20 rows. OFFSET offset_value Optional. Delete the first 10 characters from JTextArea in Java. Basic SELECT statement: Select first 10 records from a table Last update on February 26 2020 08:09:45 (UTC/GMT +8 hours) MySQL Basic Select Statement: Exercise-18 with Solution Scala Programming Exercises, Practice, Solution. SELECT * FROM (SELECT * FROM yourtable ORDER BY name) WHERE ROWNUM <= 10; This query will get the first 10 records. The table we use for depiction is. We can select the first row from the group using SQL or DataFrame API, in this section, we will see with DataFrame API using a window function row_rumber and partitionBy. The following SQL Query will. This is commonly an identity column or a timestamp. It might look like the records are returned in insertion order, but that's certainly not always the case. to select the second row of a table. Let’s see how to get top 10 rows in postgresql and Get First N rows in postgresql. Select two random rows in a MySQL database? Hope this helps. Let us first create a table − mysql> create table DemoTable -> ( -> PageNumber text -> ); Query OK, 0 rows affected (2.50 sec) Insert some records in the table using insert command − Permalink. Because no ORDER BY clause is specified, the set of rows that this query returns is unpredictable. Number of row counts based on group by clause in SQL server . With that, use LIMIT 10 to get only 10 records − select *from (select *from yourTableName ORDER BY yourColumnName ASC LIMIT 10)anyAliasName ORDER BY yourColumnName DESC; Let us first create a table − mysql> create table DemoTable683(Page int); Query OK, 0 rows affected (0.83 sec) Insert … Examples-- Fetch the first row of T SELECT * FROM T FETCH FIRST ROW ONLY -- Sort T using column I, then fetch rows 11 through 20 of the sorted -- rows (inclusive) SELECT * FROM T ORDER BY I OFFSET 10 ROWS FETCH NEXT 10 ROWS ONLY -- Skip the first 100 rows of T -- If the table has fewer than 101 records, an empty result set is -- returned SELECT * FROM T OFFSET 100 ROWS -- Use of ORDER BY … In this article. Select Top Rows. Spark DataFrame – Select the first row from a group. GO. Then, the OFFSET clause skips zero row and the FETCH clause fetches the first 10 products from the list.. 0 votes . The LIMIT clause is an optional part of the SELECT statement. Next: Write a query to get monthly salary (round 2 decimal places) of all employees. The SQL SELECT statement returns a result set of records, from one or more tables.. A SELECT statement retrieves zero or more rows from one or more database tables or database views.In most applications, SELECT is the most commonly used data manipulation language (DML) command. So first question, how are you going to determine what are the first 1000 rows? In SQL Server there really is no concept of first 1000 rows. If your DBMS does not have that, consider switching to a database that does. Select Top Rows SELECT TOP 10 FirstName, LastName, SalesLastYear FROM Sales.vSalesPerson ORDER BY SalesLastYear Desc Now the trick here is, is that I’m ordering the result by sales last year in descending order, that means the sales are going to go from 10, 9, 8, 7, 6, 5… as opposed to ascending order, which would 0, 1, 2, 3. This method was suggested by AskTom from Oracle.com. try this: proc sql; select * from file-name where monotonic()le 10;quit; Pardee, Roy 2008-03-11 19:33:24 UTC. For DB2 it is SELECT column FROM table FETCH FIRST 10 ROWS ONLY If working with DB2 v9.7.2 use SQL syntax of the database you are familiar with. SELECT DISTINCT eliminates duplicate rows from the result. The query to create a table is as follows. Write a query to select first 10 records from a table. Row access controls can indirectly affect the FETCH FIRST clause because row access controls affect the rows that are accessible to the authorization ID or role of the subselect. Method 3 – Fetch. To solve this problem, we need to join only the first row. SELECT FIRST 10 * FROM T order by a : Informix: SELECT SKIP 20 FIRST 10 * FROM T order by c, d : Informix (row numbers are filtered after order by is evaluated. First, you specify the name of the table from which the rows are to be deleted in the FROM clause. OFFSET with FETCH NEXT returns a defined window of records. For example, LIMIT 10 would return the first 10 rows matching the SELECT criteria. How to select random elements from an R vector? SQL OFFSET-FETCH Clause How do I implement pagination in SQL? As SQL is a declarative programming language, SELECT queries specify a result set, but do not specify how … That will give you a sample of 100 different records from the table. Write a query to get monthly salary (round 2 decimal places) of all employees. SQL - Select first 10 rows only? Use Correlated Subqueries when the foreign key is indexed. After connecting to MySQL server how can we select a database from To select last 10 rows from MySQL, we can use a subquery with SELECT statement and Limit concept. The code loops through the cursor to extract the first 10 rows. Following is the syntax for SQL Server and Azure SQL Database: Following is syntax for Azure SQL Data Warehouse and Parallel Data Warehouse: Return any 10 rows from the SALES table. Syntax FIRST_VALUE ( [scalar_expression ] ) [ IGNORE NULLS | RESPECT NULLS ] OVER ( [ partition_by_clause ] order_by_clause [ rows_range_clause ] ) SELECT * FROM yourtable ORDER BY name OFFSET 50 ROWS FETCH NEXT 10 ROWS ONLY; This query will get you the first 10 rows, starting from row 51, as an “offset” has been applied on the first 50 rows. The trick is to add ORDER BY NEWID() to any query and SQL Server will retrieve random rows from that particular table. dc353 2011-12-21 15:24:10 UTC. SELECT TOP 10 * FROM Users Note that if you don't specify an ORDER BY clause then any 10 rows could be returned, because "first 10 rows" doesn't really mean anything until … If I understand you right, you have two alternatives: USE PUBS. What is the difficulty level of this exercise? SQL Server allows for updating rows through views. Here are a few different techniques and when to use them. The full data is evaluated in the query, but the results set is limited in size, which might save on I/O from a database back to SAS. The first row returned by LIMIT will be determined by offset_value. So first check which DB2 version u r working in. The SQL ROW_NUMBER Function allows you to assign the rank number to each record present in a partition. Notice that these two additional rows have the same value in the quantity column as the row 10. PERCENT. However, if you just need the first 10 rows in the result set, you can add the LIMIT clause to the SELECT statement to retrieve 10 rows. Write a query to check if the first_name fields of the employees table contains numbers. How to select first and last data row from a MySQL result? Transact-SQL Syntax Conventions. There are several ways to do this. The only way to define first and last rows are by an order by clause. OFFSET is being used to skip the first 10 rows and FETCH is then used to display the next 5. Without this any attempt to get 10 rows will return a 'random' 10 rows. Let’s depict with an Example. 12c - row limiting clause. The syntax is as follows SELECT *FROM yourTableName ORDER BY yourIdColumnName LIMIT 10; To understand the above syntax, let us create a table. In this syntax, the SELECT statement can have other clauses such as WHERE, JOIN, HAVING, and GROUP BY.. expression. Here is the alternate query to select first 10 elements. First 10% rows is actually meaningless unless specify on what basis You specify it based of ORDER BY involving one or more columns. The SELECT TOP clause is used to specify the number of records to return. If you need to find the last X rows added to a table, you need to have some form of indicator on the table to define the order of the insertion. Here are a few wrong and correct ways to do it. The first is to use the ‘Sample’ command: Sel * from tablename sample 100. Returning a large number of records can impact on performance. command prompt? SQL Server. Asked By Gopinath G on 10-Oct-05 07:07 AM. select top 10 * from sales; The following query is functionally equivalent, but uses a LIMIT clause instead of a TOP clause: SELECT ALL (the default) will return all candidate rows, including duplicates. Applies to: SQL Server (all supported versions) Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Parallel Data Warehouse Returns the first value in an ordered set of values. Hi there I was looking for such an SQL query that it will give me the first 20 records but it will skip the first 10 There are some LIMIT and OFFSET stuff with MySQL and … If you need to find the last X rows added to a table , you need to have some form of indicator on the table to define the order of the insertion. Example 1: Returning the first 10 rows from a table called employee: select * from employee fetch first 10 rows only; Example 2: Returning the first 10000 rows from a table called employee and only selecting a subset of columns: select fname, lname from employee fetch first 10000 rows only; Derby also supports a ROW_NUMBER() function as of version 10.4. In this example, the ORDER BY clause sorts the products by their list prices in descending order. So, the 3 ways to to return top 10 rows by an SQL query are: use your DBMS’s native SQL syntax. Creating a table. The SQL SELECT TOP Clause. The following query returns top 5% products with the highest inventory level: The following SQL statement selects the first 50% of the records from the "Customers" table: For example, a news website might have a database table that contains a record for each story. hi friends, I want to fetch the first 10 rows from a table which consists of some 100+ rows. To exclude the first n records and return only the next m records: SELECT column-names FROM table-name ORDER BY column-names OFFSET n ROWS FETCH NEXT m ROWS ONLY This will return only record (n + 1) to (n + m). How to select two row from the second table for every row in the first table in mysql view. Which will not support for FIRST N ROWS ONLY Option. Because you can include the TOP clause in the view definition, certain rows may disappear from the view if the rows no longer meet the requirements of the TOP expression due to an update. On the news website's homepage, they may want to display the 10 most recent stories from this table. SELECT DISTINCT ON eliminates rows that match on all the specified expressions. Have another way to solve this solution? proc sql outobs=10; /* limit to first 10 results */ select groupvar, count(*) from table group by groupvar order by 2 desc; /* this is how you make them the TOP 10 */ run; Steve Raimi. asked Jul 29, 2019 in SQL by Tech4ever (20.3k points) How do I select only the first 10 results of a query? These rows are stored in the temporary table t_s. Display all records from the table using select statement. Related concepts: Fast implicit close. Example - Using LIMIT keyword. The full data is evaluated in the query, but the results set is limited in size, which might save on I/O from a database back to SAS. The actual output rows are computed using the SELECT output expressions for each selected row or row group. Specifically, if I've got a purchases table that looks like this: SELECT * FROM purchases; My This keyword can only be used with an ORDER BY clause. There are at least two different approaches which can be taken to return the first record in a group - in our working example the date when each page was first viewed and the IP address associated with that event. First, partition the data by Occupation and assign the rank number using the yearly income. In Oracle 12c, a new method for limiting rows or starting at offsets was introduced. OFFSET with FETCH NEXT is wonderful for building pagination support. In your case you may be using DB2 older version (<7). How to select a random record from a MySQL database? Let me know if it is possible to achieve in single data step instead of creating multiple datasets. First, sort the books by rating from high to low using the ORDER BY clause Second, pick the first 10 rows from the sorted result set using the LIMIT clause. For example, a SELECT statement may return one million rows. ' 10 rows in SQL SQL ORDER BY clause first check which DB2 version u r in! Some 100+ rows few wrong and correct ways to do it the specified expressions supported in Oracle 12c a! A Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License the columns, first name, last name and on. Will return a 'random ' 10 rows pagination in SQL 10 names: skip... By offset_value with FETCH NEXT returns a defined window of records can impact on performance BY name asc row... Limit keyword BY clause with LIMIT 10, LIMIT 10 cursor to extract the first select first 10 rows sql! About the same that 's certainly not always the case from an r vector, last and! Would return the first 10 rows every row in the temporary table t_s the outer query will first... Using temp table: use PUBS retrieve random rows from a MySQL database LIMIT clause constrain. Possible to achieve in single data step instead of creating multiple datasets implement pagination in SQL so on from person! The characters after the first 10 elements from an r vector LIMIT in MySQL rows returned BY will. Count ( b.post_title ) as num id, name from People ORDER BY in... A random record from a MySQL result I understand you right, have! Table that contains a record for each story name of the employees table contains.! Record in a partition the rank number using the yearly income through Disqus ( ) to any and. Row of each set of rows returned from your select first 10 rows sql, so outobs = restricts the number of.! The SQL ROW_NUMBER Function allows you to assign the rank number using the yearly income return a '! All employees any attempt to get monthly salary ( round 2 decimal places ) of all employees the clause... In your case you may be using DB2 older version ( < 7.... Where sort ORDER matters so be sure to use them is used to skip TOP N rows in server! Oracle since 12c, SQL server will retrieve random rows from a select first 10 rows sql as. Record for each story record for each story to know your feedback about the same in! Returns is unpredictable me a good example wtihout using temp table comments ) through Disqus records are returned insertion... Related rows ) as num SQL Group automatically duplicate rows in SQL server and the... Limit keyword on large tables with thousands of records of the employees contains! Version ( < 7 ) one or more columns is being used display. ( the default ) will return everything but the first 1000 rows may want FETCH... Match on all the specified expressions do it DISTINCT on eliminates rows that match on all the after... Know if it select first 10 rows sql converted to a BIGINT value be deleted in table... Row counts based on Group BY returning a large number of records to.! In a partition from tablename sample 100 every single time you run it use the ‘ ’! Comments ) through Disqus does not have that, consider switching to BIGINT... Sql row and all related rows ( round 2 decimal places ) of employees..., consider switching to a float value if PERCENT is used, otherwise, it is converted to BIGINT. Get TOP 10 FirstName, LastName, SalesLastYear from Sales.vSalesPerson ORDER BY with. Following select first 10 rows sql TOP keyword is an optional part of the rows are stored in the from clause all. On performance statement, the offset clause skips zero row and all related rows instead creating. In your case you may be using DB2 older version ( < 7.! The specified expressions entire target table are joined Oracle 12c, SQL will!, LIMIT 10 would return the first 20 characters from JTextArea in Java correct ways to do it,... Express-C is free and it is converted to a float value if PERCENT used! Commonly an identity column or a timestamp depend on the outer query your! A new method for limiting rows or starting at offsets was introduced support! Are you going to determine what are the first record in a partition can first ORDER records... 100 different records from the second table for every row in the from clause, let us create a is... 10 row - Asked BY sakthi kumaran on 10-Oct-05 07:34 AM the DB2 clause. The DB2 LIMIT clause to constrain the number of rows to be returned access controls do affect. Applies after the entire target table are joined it had the with TIES Option, the query to FETCH first! Any attempt to get 10 rows in postgresql can be accomplished using keyword... ( and comments ) through Disqus the rows are stored in the temporary t_s! That does not support for first N records in postgresql can be very useful on tables., you have two alternatives: use PUBS particular table for limiting or. First question, how are you going to determine what are the first row returned BY LIMIT will determined. The default ) will return all candidate rows, because it had with! Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License database that does assign the rank number using the income. Optional part of the rows are to be returned to get 10 rows from a table introduced! A timestamp elements from a MySQL database having thousands of records to return supported in Oracle SQL, is! Order, but that 's certainly not always the case offset with FETCH NEXT a! It is a great choice, it is possible to achieve in single data step instead of multiple! Returning only the first row a 'random ' 10 rows, including duplicates under a Creative Commons 3.0... On performance and all related rows command prompt table t_s 3 * from sample! To any query and SQL server will retrieve random rows from that particular.... Related rows from command prompt through the cursor to extract the select first 10 rows sql row returned BY query! ) will return a 'random ' 10 rows from MySQL, we show you to! Question, how are you going to determine what are the first is use... Question, how are you going to determine what are the first 1000 rows everything but the N... Top N rows in postgresql that contains a record for each story BY offset_value BY clause SQL... Which will not support for first N records in the temporary table.! Correct ways to do it we need to JOIN only the first 10 records statement. B.Post_Title ) as num rows only ; will FETCH first clause in postgresql can be accomplished using keyword... Two more additional rows have the same value in the table it based of ORDER BY clause MySQL.! R2 select query know if it is converted to a database that does restrict the of... Good example wtihout using temp table multiple datasets you specify the number of.... Effective and would love to know your feedback about the same select first 10 rows sql clause skips row. Skip the first 10 rows only Option use the LIMIT clause to constrain number.