[Tex/LaTex] Table always placed on the last page

Question

\begin{table}[h!]
     \begin{center}
\begin{tabular}{ |c|c|c|c|c|c|c|} 
\hline
Class and class & Field    & designation & type &size & observation \\
\hline
\multirow{6}{4em}{Member} & m $-$ code  & code of member  & N & 10 & Auto increment\\ 

& m$-$name  & member name &A &20 &\\ 

&m$-$fname & member family name &A &20 &\\ 

& email  & email of member &AN &20 &\\ 

&  m$-$type & member type & A &20 &\\ 

& m$-$grade  & member grade & A &20 &\\ 

 \hline

\multirow{6}{4em}{Report   } &R$-$code & report code &N & 10 &Auto increment
 \\ 
& R$-$date& misconduct date  & D & 8& dd$ \ $ mm$ \ $ yyyy \\ & R$-$hour  &  misconduct hour &H &6 &\\ 

&place & misconduct place &A &20 &\\ 

& cause  & cause of report  &A &50 &\\ 

%&st_name and st_fname  & student name and fname &20 &A &\\ 

%& mb_name and mbfname  & member name and  & 20 &A \\ 


\hline
\multirow{6}{4em}{Decision  } &d$-$code & decision code &N & 10 & \\
 &c$-$code & convocation code &N & 10 & Auto increment
\\
& d$-$date& decision date  & D & 8& dd$ \ $ mm$ \ $ yyyy \\ & d$-$hour  &  decision hour &H &6 &\\ 

&f$-$des & final decision &A &50 &\\ 

& cause  & cause of decision  &A &50 &\\ 
& level  & level of infraction  & N & 2&\\ 
& details & details of decision  &A &50 &\\ 
%&st_name and st_fname  & student name and fname &20 &A &\\ 

%& mb_name and mbfname  & member name and  & 20 &A \\ 

\hline

\multirow{6}{4em}{Convocation} &c$-$code & convocation code &N & 10 & Auto increment
\\ 
& m $-$ code  & code of member  & N & 10 & Auto increment
\\
& c$-$date& convocation date  & D & 8& dd$ \ $ mm$ \ $ yyyy \\ & c$-$hour  &  convocation hour &H &6 &\\ 

&c$-$reason& convocation reason &A &50 &\\ 

%& cause  & cause of desicion  &A &50 &\\ 

%&st_name and st_fname  & student name and fname &20 &A &\\ 

%& mb_name and mbfname  & member name and  & 20 &A \\ 

\hline
\multirow{6}{4em}{ Teacher } & st$-$code &student code &N & 10 & Auto increment
 \\ 
& t $-$name   & teacher name  &20 &A & \\ 
 & t$-$fname & teacher family name&20&  A&\\
 & email  & email of member &AN &20 &\\ 
 &  m$-$type & member type & A &20 &\\


\hline
\multirow{6}{4em}{ Student } & st$-$code &student code &N & 10 & Auto increment
\\ 
&st$-$name    & student name  &20 &A &  \\ 
 &st$-$fname & student family name&20&  A&\\
 & email  & email of member &AN &20 &\\ 
 &  m$-$type & member type & A &20 &\\
  \hline
\multirow{6}{4em}{Department chief } & dch$-$code &department chief  code &N & 10 & \\
 &dch$-$name    & department   chief  name  &20 &A &  \\ 
 &dch$-$fname & department chief  family name&20&  A&\\
 & email  & email of department chief  &AN &20 &\\ 
 &  m$-$type & member type & A &20 &\\
 \hline
\multirow{6}{4em}{Dec$ - $Mem} 
  &d$-$code & decision code &N & 10 &  Auto increment
\\ 
&  &  & &  &\\
 &m$-$code & member code &N & 10 &  Auto increment
\\ 
&   &  &  &  &\\
 \hline
\multirow{6}{4em}{Rep$ - $Mem} 
  &r$-$code & report code &N & 10 &  Auto increment
\\ 
&  &   & & &\\
 &m$-$code & member code &N & 10 & Auto increment
 \\ 
&   &  &  &  &\\
\hline
\end{tabular}
 \caption{Detailed description of fields}

      \label{tabclass}
      \end{center}
      \end{table}

Answer 1

As already mentioned in above comments one of solution can be use of longtable:

Based on guessing about used document clas, page layout ... :

\documentclass{article}
\usepackage{geometry}
\usepackage{booktabs, longtable, multirow}

\begin{document}
    \begin{longtable}{@{} lll cc l @{}}
\caption{Detailed description of fields}
    \label{tabclass}    \\
    \toprule
Class and class 
        & Field     & designation           & type & size   & observation       \\
    \midrule
\endfirsthead
\caption{Detailed description of fields (cont.)}                                \\
    \toprule
Class and class
        & Field     & designation           & type & size   & observation       \\
\endhead
\midrule
\multicolumn{6}{r}{continue on the next page}
\endfoot
\bottomrule
\endlastfoot
%
Member  & m$-$code  & code of member       & N     & 10    & Auto increment    \\
        & m$-$name  & member name          & A     & 20    &                   \\
        & m$-$fname & member family name   & A     & 20    &                   \\
        & email      & email of member      & AN    & 20    &                   \\
        & m$-$type  & member type          & A     & 20    &                   \\
        & m$-$grade & member grade         & A     & 20    &                   \\
    \midrule
Report  & R$-$code  & report code          & N     & 10    & Auto increment    \\
        & R$-$date  & misconduct date      & D     & 8     & dd/mm/yyyy        \\
        & R$-$hour  & misconduct hour      & H     & 6     &                   \\
        & place      & misconduct place     & A     & 20    &                   \\
        & cause      & cause of report      & A     & 50    &                   \\
%&st_name and st_fname  & student name and fname &20 &A &\\
%& mb_name and mbfname  & member name and  & 20 &A \\
    \midrule
Decision& d$-$code  & decision code        & N     & 10    &                   \\
        & c$-$code  & convocation code     & N     & 10    & Auto increment    \\
        & d$-$date  & decision date        & D     & 8     & dd/mm/yyyy        \\
        & d$-$hour  & decision hour        & H     & 6     &                   \\
        & f$-$des    & final decision       & A     & 50    &                   \\
        & cause      & cause of decision    & A     & 50    &                   \\
        & level      & level of infraction  & N     & 2     &                   \\
        & details    & details of decision  & A     & 50    &                   \\
%&st_name and st_fname  & student name and fname &20 &A &\\
%& mb_name and mbfname  & member name and  & 20 &A \\
    \midrule
Convocation
        & c$-$code   & convocation code     & N     & 10    & Auto increment    \\
        & m$-$code   & code of member       & N     & 10    & Auto increment    \\
        & c$-$date   & convocation date     & D     & 8     & dd/mm/yyyy        \\ 
        & c$-$hour   & convocation hour     & H     & 6     &                   \\
        & c$-$reason & convocation reason   & A     & 50    &                   \\
%       & cause      & cause of desicion    & A     & 50    &                   \\
%       & st_name and st_fname  & student name and fname & 20 & A &         \\
%       & mb_name and mbfname   & member name and        & 20 & A &         \\
    \midrule
Teacher & st$-$code  & student code         & N     & 10    & Auto increment    \\
        & t$-$name   & teacher name         & 20    & A     &                   \\
        & t$-$fname  & teacher family name  & 20    & A     &                   \\
        & email      & email of member      & AN    & 20    &   \\
        & m$-$type   & member type          & A     & 20    &   \\
    \midrule
Student & st$-$code  & student code         & N     & 10    & Auto increment    \\
        &st$-$name   & student name         & 20    & A     &   \\
        &st$-$fname  & student family name  & 20    & A     &   \\
        & email      & email of member      & AN    & 20    &   \\
        &  m$-$type  & member type          & A     & 20    &   \\
    \midrule
Department chief 
        & dch$-$code & department chief code & N    & 10    &           \\
        & dch$-$name & department   chief  name         & 20 & A    &   \\
        & dch$-$fname& department chief  family name    & 20 & A    &   \\
        & email      & email of department chief        & AN & 20   &   \\
        &  m$-$type  & member type                      & A  & 20   &   \\
    \midrule
Dec$ - $Mem 
        & d$-$code  & decision code         & N     & 10 &  Auto increment  \\
        &  &  &  &  &\\
        & m$-$code  & member code           & N     & 10 &  Auto increment  \\
        &  &  &  &  &\\
    \midrule
Rep$-$Mem
        &r$-$code   & report code           & N     & 10 &  Auto increment  \\
        &  &  &  &  &\\
        & m$-$code  & member code           & N     & 10 & Auto increment   \\
        &   &  &  &  &\\
    \end{longtable}
\end{document}

As you can see, thable is redesigned: no vertical rules, for horizontal are used rules from booktabs package , no multirow cells in the first table column ...