Sep 23, 2009 · One of the quickest ways to count columns in specific table is to look at max_column_id_used column in sys.tables for that table: USE your_db SELECT name, max_column_id_used [columns_count] FROM sys.tables WHERE name IN ('your_table')

Use COUNT() with GROUP BY. Here we use the COUNT() function and the GROUP BY clause, to return the number of records for each category in the Products table:

Jun 19, 2013 · Is there a way to do a COUNT () that contains a condition like COUNT (CallID WHERE OutcomeID = 36)? You can use a CASE expression with your aggregate to get a total based on the outcomeId value: sum(case when outcomeid = 36 then 1 else 0 end) SalesCount, sum(case when outcomeid <> 36 then 1 else 0 end) NonSalesCount. See SQL Fiddle with Demo.

Feb 6, 2024 · To count the columns of your table precisely, you can get form information_schema.columns with passing your desired Database(Schema) Name and Table Name. Reference the following Code: SELECT count(*) FROM information_schema.columns WHERE table_schema = 'myDB' AND table_name = 'table1';

Aug 9, 2021 · SELECT count(*) as No_of_Column FROM information_schema.columns WHERE table_name ='geeksforgeeks'; Here, COUNT(*) counts the number of columns returned by the INFORMATION_SCHEMA .columns one by one and provides the final count of the columns.

Nov 18, 2024 · The simplest way to get the total number of columns in a table in SQL is to use INFORMATION_SCHEMA.COLUMNS. Syntax SELECT COUNT(*) AS ColumnCount FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'YourTableName' AND TABLE_SCHEMA = 'schema name';

Feb 16, 2016 · For columns count in tables, this query can be used: SELECT [Schema] = s.name , [Table] = t.name , number = COUNT(*) FROM sys.columns c INNER JOIN sys.tables t ON c.object_id = t.object_id INNER JOIN sys.schemas s ON …

Oct 21, 2021 · Learn the variations of the SQL COUNT() function: count(*), count(1), count(column name), and count(distinct).

Jan 30, 2025 · The system views such as INFORMATION_SCHEMA.COLUMNS or database-specific methods, can be utilized with the count() function to retrieve the number of columns in a table. This metadata is important for schema exploration, data validation, automation, and performance optimization.

Jun 29, 2023 · COUNT () is one of SQL’s most common aggregate functions. It returns the number of rows that match a specified condition or are included in a result set. It is often used to retrieve the total number of records in a table or to calculate the number of occurrences of a particular value within a column.