Get number of columns sql

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

0 vote228 views1 answer
Restart serial number for postgres
SQL
-1 vote169 views1 answer
Auto increment psql not primary key
SQL
0 vote159 views1 answer
SQL Server format datetime
SQL
0 vote186 views1 answer
Combine 2 columns search query mysql
SQL
0 vote195 views1 answer
Sql server create constraint
SQL
2 votes183 views1 answer
Copy all values of a column to another column in sql in same table
SQL
0 vote158 views1 answer
Postgres week number
SQL
0 vote176 views3 answers
Sql delete all except
SQL
0 vote172 views1 answer
Couldn't execute 'SELECT COLUMN_NAME
SQL
1 vote177 views1 answer
Where not in array sql
SQL