Sql number columns

SELECT TABLE_NAME , count(COLUMN_NAME)
FROM information_schema.columns
GROUP BY TABLE_NAME;

-- Oracle (depending on schema grants):
SELECT count(*) FROM USER_TAB_COLS WHERE TABLE_NAME = 'my_table';
SELECT count(*) FROM ALL_TAB_COLS WHERE TABLE_NAME = 'my_table';
SELECT count(*) FROM DBA_TAB_COLS WHERE TABLE_NAME = 'my_table';

Get columns number sql

//With JAVA

String quer="SELECT * FROM sample2 where 1=2";

Statement st=con.createStatement();
ResultSet rs=st.executeQuery(quer);
ResultSetMetaData rsmd = rs.getMetaData();
int NumOfCol=0;
NumOfCol=rsmd.getColumnCount();
System.out.println("Query Executed!! No of Colm="+NumOfCol);

Source: stackoverflow.com

Similar codes

1 vote360 views3 answers
Sql server get week dates from week number
SQL
0 vote294 views1 answer
Get last run query sql server
SQL
0 vote341 views1 answer
How to check xampp mysql password
SQL
2 votes368 views1 answer
Cast string to datetime mysql
SQL
2 votes367 views3 answers
Sqlite3.OperationalError: near "7": syntax error
SQL
0 vote382 views1 answer
Mysql change default collation
SQL
3 votes324 views1 answer
Difference sql vs mysql
SQL
4 votes428 views4 answers
Remove duplicate old value in mysql
SQL
1 vote348 views1 answer
Float precision in psql
SQL
0 vote398 views1 answer
Sql statement show all emails with dome
SQL