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

4 votes279 views2 answers
Spring url parameter
Java
0 vote339 views1 answer
Java resultset length
Java
12 votes303 views5 answers
Java arraylist to array
Java
2 votes343 views1 answer
Read int from keyboard java
Java
0 vote328 views1 answer
Set up a tree in java
Java
0 vote375 views1 answer
Java herencia
Java
10 votes281 views1 answer
How to get 2 decimal places in java
Java
0 vote324 views1 answer
Junit 5 dependency maven
Java
22 votes345 views2 answers
System.out.println("j= 6");
Java
0 vote351 views2 answers
How to start activity in adapter android
Java