Get all the column names in sql
WebMar 4, 2015 · There is a way to get all the column names of a query, using dbms_sql.describe_columns2. But, it has to be done in PL/SQL. For example, I want to get the list of all columns of the following SQL: SELECT emp.empno, emp.ename, dept.deptno FROM emp INNER JOIN dept ON emp.deptno = dept.deptno WebSep 22, 2024 · Get column names and info of all tables accessible to the current user SELECT * FROM ALL_TAB_COLS Get column names and info of all tables in the entire database SELECT * FROM DBA_TAB_COLS More information can be found in the Oracle documentation Share Improve this answer Follow answered Oct 11, 2024 at 20:44 …
Get all the column names in sql
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WebMay 3, 2024 · To get Column names of a table in SQL server use query below query: Select COLUMN_NAME,DATA_TYPE from INFORMATION_SCHEMA.COLUMNS … WebJul 18, 2024 · The query below works for the tables in your schema. If you want to do this for all the tables you have access to, use all_tables and all_tab_columns; if you have DBA privileges, use dba_tables and dba_tab_columns (but in these cases, don't you need to know the schema/owner, not just the table name?)
WebJun 20, 2024 · Here is an example of how to use it and get the names of all the columns in a specific table. 1 2 3 4 5 6 7 8 SELECT COLUMN_NAME, ORDINAL_POSITION, … WebMar 22, 2012 · select name as TABLE_NAME, STUFF (COLUMN_NAME, 1, 1, '') AS COLUMN_NAME from sys.tables t CROSS APPLY ( SELECT ',' + name AS [text ()] FROM sys.columns c WHERE c.object_id = t.object_id FOR XML PATH ('') ) o (COLUMN_NAME) Share Improve this answer Follow answered Feb 8, 2011 at 18:12 Martin Smith 432k 87 …
WebHowever, as far as how to get column names, assuming this is SQL Server, you can use the following query: SELECT c.name FROM sys.columns c WHERE c.object_id = … WebFeb 4, 2011 · Sub GetField2Description() '***** 'Purpose: 1) Deletes and recreates a table (tblFields) ' 2) Queries table MSysObjects to return names of ' all tables in the database ' 3) Populates tblFields 'Coded by: raskew 'Inputs: From debug window: ' Call GetField2Description 'Output: See tblFields '***** Dim db As Database, td As TableDef …
WebMay 9, 2009 · Fetch Column Names of Table using SQL Query. The INFORMATION_SCHEMA.COLUMNS table returns information about all columns within a Database. A SELECT statement needs to be executed over the table and the Table Name whose Column names needs to be fetched is displayed in WHERE clause. Syntax.
WebApr 5, 2016 · select col from ( select col, case s.col when 'sub-1' then sub-1 when 'sub-2' then sub-2 end AS val from mytable cross join ( select 'sub-1' AS col union all select 'sub-2' ) s ) s where val ='Y' It gives the columns for all row. I need the same data for a single row. Like if I select "Tom", I need the column names for 'Y' value. Share hindi dainik jagran delhiWebOct 20, 2011 · You can get a list of column names by running: SELECT name FROM PRAGMA_TABLE_INFO ('your_table'); name tbl_name rootpage sql You can check if a certain column exists by running: SELECT 1 FROM PRAGMA_TABLE_INFO ('your_table') WHERE name='sql'; 1 Reference: f1 ekzosWebMar 9, 2015 · To get column names, data types and a lot more info for a table in Sybase, use the following query. Select * from systabcol key join systab where table_name = 'your_table_name'. Share. Improve this answer. Follow. answered Jan 23, 2024 at 5:59. f1 elmaxWebOct 3, 2014 · use desc tablename from Hive CLI or beeline to get all the column names. If you want the column names in a file then run the below command from the shell. $ hive -e 'desc dbname.tablename;' > ~/columnnames.txt. where dbname is the name of the Hive database where your table is residing You can find the file columnnames.txt in your root … f1elly leaksWebFeb 21, 2024 · 1st you have to retrieve all table name and with those table name retrieve table description that contain all column name with data type. we use 2 spark sql query 1: Table_name = spark.sql ("SHOW TABLES FROM default") ( default databricks default database name) result hindi dairy modelWebApr 10, 2024 · ALTER TABLE table_name. ADD column_name datatype; Example – We would like to add a new column for CGPA to our Student_info table. The sentence structure would be as follows:. ALTER TABLE Student_info. ADD CGPA number; TRUNCATE : Although all of the rows in the table are removed with this command in DDL Commands, … hindi dainik jagran newspaperWeb2 days ago · Here, the WHERE clause is used to filter out a select list containing the ‘FirstName’, ‘LastName’, ‘Phone’, and ‘CompanyName’ columns from the rows that … hindi damsel bagged