- How do I insert a row in the middle of a table in SQL?
- How can I insert 100 rows in SQL?
- How do I fetch a specific row in SQL?
- How do I put multiple rows of data in one row?
- How do I select a specific row?
- How do I find the middle row in SQL?
- Which SQL keyword is used to retrieve a maximum value?
- Which one sorts rows in SQL?
- How do I get last 10 rows in SQL?
- How do I select top 1000 rows in SQL?
- How do I get the top 3 rows in SQL?
- What is offset in SQL query?
- How do you show even rows in employee table?
- What happens if a delete command is run on a table without a where clause?
- How do I get top 5 rows in SQL?
How do I insert a row in the middle of a table in SQL?
In SQL Server, the basic approach would be: DECLARE @value VARCHAR(32), @ID INT = 2; UPDATE dbo.
table SET ID = ID + 1 WHERE ID >= 2; INSERT dbo..
How can I insert 100 rows in SQL?
You could use the table master. dbo. spt_values : set identity_insert #test1 off; insert into #test1 (test_id) select top (100) row_number() over (order by (select null)) from master.
How do I fetch a specific row in SQL?
3 Answers. You need to use rownum , which is Oracle’s equivalent of TOP 1 (from SQL Server) or LIMIT 1 (from MySQL). It is important that you use where rownum = 1 in a higher level SELECT because Oracle requires you to first sort the result set and then it will filter the rows.
How do I put multiple rows of data in one row?
Here is the example.Create a database.Create 2 tables as in the following.Execute this SQL Query to get the student courseIds separated by a comma. USE StudentCourseDB. SELECT StudentID, CourseIDs=STUFF. ( ( SELECT DISTINCT ‘, ‘ + CAST(CourseID AS VARCHAR(MAX)) FROM StudentCourses t2. WHERE t2.StudentID = t1.StudentID.
How do I select a specific row?
To select rows using selection symbols for character or graphic data, use the LIKE keyword in a WHERE clause, and the underscore and percent sign as selection symbols. You can create multiple row conditions, and use the AND, OR, or IN keywords to connect the conditions.
How do I find the middle row in SQL?
Display Middle RecordSELECT * FROM table_name WHERE ROWNUM <=(SELECT CASE MOD(COUNT(1),2)WHEN 0 THEN(COUNT(1)/2) + 1.ELSE ROUND(COUNT(1)/2) END FROM table_name)MINUS.SELECT * FROM table_name.WHERE ROWNUM < (SELECT (COUNT(1)/2) FROM table_name)
Which SQL keyword is used to retrieve a maximum value?
MAXMAX() is the SQL keyword is used to retrieve the maximum value in the selected column.
Which one sorts rows in SQL?
The SQL ORDER BY Keyword The ORDER BY keyword is used to sort the result-set in ascending or descending order. The ORDER BY keyword sorts the records in ascending order by default. To sort the records in descending order, use the DESC keyword.
How do I get last 10 rows in SQL?
The following is the syntax to get the last 10 records from the table. Here, we have used LIMIT clause. SELECT * FROM ( SELECT * FROM yourTableName ORDER BY id DESC LIMIT 10 )Var1 ORDER BY id ASC; Let us now implement the above query.
How do I select top 1000 rows in SQL?
In order to SELECT or EDIT all tables open SSMS, under Tools, click Options as shown in tha image below: Then expand SQL Server Object Explorer, and select Command: Then change those 200 and 1000 values to 0 for both options.
How do I get the top 3 rows in SQL?
SQL Server SELECT TOPexpression. Following the TOP keyword is an expression that specifies the number of rows to be returned. … PERCENT. … WITH TIES. … 1) Using TOP with a constant value. … 2) Using TOP to return a percentage of rows. … 3) Using TOP WITH TIES to include rows that match the values in the last row.
What is offset in SQL query?
The OFFSET and FETCH clauses are the options of the ORDER BY clause. They allow you to limit the number of rows to be returned by a query. In this syntax: The OFFSET clause specifies the number of rows to skip before starting to return rows from the query.
How do you show even rows in employee table?
Selecting ODD or EVEN rows from a tableWrite a subquery with an ORDER BY clause. Along with the data columns, select the pseudocolumn rownum with an alias, say rn.In the outer query, reference the alias rn and use the mod function to get odd rows or even rows.
What happens if a delete command is run on a table without a where clause?
If you will not provide where clause with delete statement, then whole table data will be deleted. Use this very carefully to avoid any unwanted data loss. Delete From Customer; In the syntax above the deletion happens without any condition and will delete all the records of the table.
How do I get top 5 rows in SQL?
SQL TOP, LIMIT or ROWNUM ClauseSQL Server / MS Access Syntax: SELECT TOP number|percent column_name(s) FROM table_name. WHERE condition;MySQL Syntax: SELECT column_name(s) FROM table_name. WHERE condition. LIMIT number;Oracle Syntax: SELECT column_name(s) FROM table_name. WHERE ROWNUM <= number;