package com.demo.doc;

/**
 * @author YenHex
 * @since 2023/5/16
 */
public class PrintDemo {

    public static void main(String[] args) {
        String sql = "SELECT " +
                " 'tableName' = d.name, " +
                " 'columnName' = A.name, " +
                " 'comment' = isnull( G.[value], '' ), " +
                " 'isKey' = " +
                "CASE " +
                " WHEN EXISTS ( " +
                " SELECT " +
                "  1  " +
                " FROM " +
                "  sysobjects  " +
                " WHERE " +
                "  xtype = 'PK'  " +
                "  AND parent_obj = A.id  " +
                "  AND name IN ( SELECT name FROM sysindexes WHERE indid IN ( SELECT indid FROM sysindexkeys WHERE id = A.id AND colid = A.colid ) )  " +
                "  ) THEN " +
                "  'true' ELSE 'false'  " +
                " END, " +
                " 'dataType' = B.name, " +
                " 'maxLength' = COLUMNPROPERTY( A.id, A.name, 'PRECISION' ), " +
                " 'numericPrecision' = isnull( COLUMNPROPERTY( A.id, A.name, 'Scale' ), 0 ), " +
                " 'isNull' = " +
                "CASE " +
                "   " +
                "  WHEN A.isnullable= 1 THEN " +
                "  'true' ELSE 'false'  " +
                " END " +
                "FROM " +
                " syscolumns A " +
                " LEFT JOIN systypes B ON A.xusertype= B.xusertype " +
                " INNER JOIN sysobjects D ON A.id= D.id  " +
                " AND D.xtype= 'U'  " +
                " AND D.name != 'dtproperties' " +
                " LEFT JOIN syscomments E ON A.cdefault= E.id " +
                " LEFT JOIN sys.extended_properties G ON A.id= G.major_id  " +
                " AND A.colid= G.minor_id " +
                " LEFT JOIN sys.extended_properties F ON D.id= F.major_id  " +
                " AND F.minor_id= 0  " +
                "WHERE " +
                " d.name in ";
        System.out.println(sql);
    }

}