To get total number of columns in a table in sql
SELECT COUNT(COLUMN_NAME)
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_CATALOG = 'database' AND TABLE_SCHEMA = 'dbo'
AND TABLE_NAME = 'table'
How do I count columns of a table
SELECT count(*)
FROM information_schema.columns
WHERE table_name = 'tbl_ifo'
How to find the total number of columns in a table in teradata?
INFORMATION_SCHEMA is not implemented in Teradata, the DBC database holds metadata:
SELECT COUNT(*)
FROM dbc.ColumnsV
WHERE DatabaseName = 'WMS'
AND TableName = 'RM_SELLER_ITEM_MST'
how can i count number of columns in table
Maybe this is not the most elegant solution but in this way if you need know the number of rows/columns and the content you don't need query the DB twice;
when you do
rows = cursor.fetchall()
you already have an list of list, where every your sub-list is a line of the DB so if you want the number of the row you can do:
len(rows)
if you want the number of the column you can just select one row and count how many element there are.... even if some row doesn't have all the element it will be reported with null values so:
len(rows[0])
How to count the number of columns in a table using SQL?
select count(*)
from user_tab_columns
where table_name='MYTABLE' --use upper case
Instead of uppercase you can use lower function.
Ex:
select count(*) from user_tab_columns where lower(table_name)='table_name';
Count number of columns in a table row
document.getElementById('table1').rows[0].cells.length
cells is not a property of a table, rows are. Cells is a property of a row though
Get the number of columns in a table
Maybe you should use COUNT(*) - e.g.
$query = "SELECT
(SELECT COUNT(*) FROM table1)
+ (SELECT COUNT(*) FROM table2)
+ (SELECT COUNT(*) FROM table3)
+ (SELECT COUNT(*) FROM table4)
+ (SELECT COUNT(*) FROM table5)";
Count Number of Columns In Hive
Try this
SHOW COLUMNS (FROM|IN) table_name [(FROM|IN) db_name]
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