Get columns number sql

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 vote185 views1 answer
Can we rollback data that are deleted using DELETE
SQL
0 vote162 views1 answer
Change permission to database mysql
SQL
3 votes213 views1 answer
Export postgres database linux
SQL
1 vote151 views1 answer
Sql server 2016 reseed identity
SQL
2 votes162 views1 answer
Mysql find tables with name
SQL
0 vote212 views1 answer
Automated psql csv export script on windows
SQL
0 vote175 views1 answer
Postgresql update to unique
SQL
0 vote180 views1 answer
How to get one year old query from plan cache
SQL
-1 vote179 views3 answers
Psql get last rows
SQL
0 vote130 views1 answer
Flask_sqlalchemy install
SQL