- How do I select all columns except one in hive?
- How do I select a query in MySQL?
- How do I select a column name in SQL?
- How do I group by multiple columns in SQL?
- How do I get multiple distinct columns from one table?
- How do I find a column in SQL?
- How do I list all columns in SQL?
- How do I find a specific column in SQL?
- How do I select all columns except one in SQL?
- How do I select all columns with distinct on one column?
- How do I select multiple columns in MySQL?
- How do I count distinct multiple columns in SQL?
- How do I exclude one column from select in hive?
- How do you select two columns?
- How do I select multiple rows in SQL?
How do I select all columns except one in hive?
+` from ( –select all columns from subquery except col21 select *, unix_timestamp() AS alias_col21 from table_name –select *, create new col based on col21 )a; By using this approach you are going to have alias_col21 as last column in your select statement so that you can partition based on that column..
How do I select a query in MySQL?
MySQL – Select QueryYou can use one or more tables separated by comma to include various conditions using a WHERE clause, but the WHERE clause is an optional part of the SELECT command.You can fetch one or more fields in a single SELECT command.You can specify star (*) in place of fields.More items…
How do I select a column name in SQL?
Tip Query to get all column names from database table in SQL…SELECT COLUMN_NAME.FROM INFORMATION_SCHEMA. COLUMNS.WHERE TABLE_NAME = ‘Your Table Name’ORDER BY ORDINAL_POSITION.
How do I group by multiple columns in SQL?
Group By single column: Group By single column means, to place all the rows with same value of only that particular column in one group. … Group By multiple columns: Group by multiple column is say for example, GROUP BY column1, column2.
How do I get multiple distinct columns from one table?
DISTINCT on multiple columnsSample Select statement.Select with distinct on two columns.Select with distinct on three columns.Select with distinct on all columns of the first query.Select with distinct on multiple columns and order by clause.Count() function and select with distinct on multiple columns.
How do I find a column in SQL?
To get full information: column name, table name as well as schema of the table.. USE YourDatabseName GO SELECT t.name AS table_name, SCHEMA_NAME(schema_id) AS schema_name, c.name AS column_name FROM sys. tables AS t INNER JOIN sys. columns c ON t.
How do I list all columns in SQL?
Microsoft SQL Server Management Studio 2008 R2: In a query editor, if you highlight the text of table name (ex dbo. MyTable) and hit ALT + F1 , you’ll get a list of column names, type, length, etc.
How do I find a specific column in SQL?
Use this Query to search Tables & Views:SELECT COL_NAME AS ‘Column_Name’, TAB_NAME AS ‘Table_Name’FROM INFORMATION_SCHEMA.COLUMNS.WHERE COL_NAME LIKE ‘%MyName%’ORDER BY Table_Name, Column_Name;
How do I select all columns except one in SQL?
Just right click on the table > Script table as > Select to > New Query window. You will see the select query. Just take out the column you want to exclude and you have your preferred select query….get all columns.loop through all columns and remove wich you want.make your query.
How do I select all columns with distinct on one column?
Introduction to SQL Server SELECT DISTINCT clause Sometimes, you may want to get only distinct values in a specified column of a table. To do this, you use the SELECT DISTINCT clause as follows: SELECT DISTINCT column_name FROM table_name; The query returns only distinct values in the specified column.
How do I select multiple columns in MySQL?
To select multiple columns from a table, simply separate the column names with commas! For example, this query selects two columns, name and birthdate , from the people table: SELECT name, birthdate FROM people; Sometimes, you may want to select all columns from a table.
How do I count distinct multiple columns in SQL?
How to count distinct values over multiple columns using SQLMethod-1 Using a derived table (subquery) You can simply create a select distinct query and wrap it inside of a select count(*) sql, like shown below: SELECT COUNT(*) … Method-2 Using Concatenated columns. … Method-3 If performance is a factor. … Enjoy great content like this and a lot more !
How do I exclude one column from select in hive?
Hive is a high level language to analyse large volumes of data. The easiest way to select specific columns in Hive query is by specifying the column name in the select statement. SELECT col1, col3, col4 ….
How do you select two columns?
You can also select multiple columns by selecting a column header, pressing and holding the Shift key, and pressing the Left or Right arrow keys to select additional columns.
How do I select multiple rows in SQL?
Now to get to your question, as others before me answered you can use the IN clause: SELECT * FROM users WHERE ( id IN (1,2,..,n) ); or, if you wish to limit to a list of records between id 20 and id 40, then you can easily write: SELECT * FROM users WHERE ( ( id >= 20 ) AND ( id <= 40 ) );