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

0 vote138 views1 answer
Mysql custom sort order
SQL
0 vote147 views1 answer
Nuget sqllite-net-pcl
SQL
11 votes130 views1 answer
Ddl view
SQL
0 vote127 views7 answers
10 random questions use python and SQL
SQL
0 vote130 views1 answer
Sql server concat null
SQL
1 vote128 views1 answer
ERROR 1193 (HY000): Unknown system variable 'GTID_PURGED'
SQL
18 votes125 views4 answers
Mysql current date between two dates
SQL
0 vote136 views1 answer
Insert into Select * - NAYCode.com
SQL
19 votes122 views2 answers
Mysql add column after another
SQL
2 votes114 views1 answer
Create table with primary key
SQL