Oracle nls length semantics: differenze tra le versioni
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Nessun oggetto della modifica |
Nessun oggetto della modifica |
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Questo breve script plsql converte tutte le colonne VARCHAR2 e CHAR da BYTE a CHAR: |
Questo breve script plsql converte tutte le colonne VARCHAR2 e CHAR da BYTE a CHAR: |
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begin |
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for c1 in (select owner,table_name,column_name,data_type,data_length |
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from dba_tab_columns where data_type in ('VARCHAR2','CHAR') |
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and char_used='B' and owner in ('USER1','USER2')) |
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loop |
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begin |
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execute immediate 'alter table ' || c1.owner || '.' || c1.table_name || ' modify ' || |
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c1.column_name || ' ' || c1.data_type || '( ' || c1.data_length || ' char)'; |
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exception |
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when others |
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then |
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null; |
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end; |
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end loop; |
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end; |
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/ |
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Variante: |
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begin |
begin |
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for c1 in (select c.owner,c.table_name,c.column_name,c.data_type,c.data_length |
for c1 in (select c.owner,c.table_name,c.column_name,c.data_type,c.data_length |
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from dba_tab_columns c inner join dba_tables t on t.owner=c.owner and t.table_name=c.table_name |
from dba_tab_columns c inner join dba_tables t on t.owner=c.owner and t.table_name=c.table_name |
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where c.data_type in ('VARCHAR2','CHAR') and c.char_used='B' and c.owner in ('TEST')) |
where c.data_type in ('VARCHAR2','CHAR') and c.char_used='B' and c.owner in ('TEST')) |
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loop |
loop |
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begin |
begin |
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Versione attuale delle 15:46, 21 gen 2020
Questo breve script plsql converte tutte le colonne VARCHAR2 e CHAR da BYTE a CHAR:
begin
for c1 in (select c.owner,c.table_name,c.column_name,c.data_type,c.data_length
from dba_tab_columns c inner join dba_tables t on t.owner=c.owner and t.table_name=c.table_name
where c.data_type in ('VARCHAR2','CHAR') and c.char_used='B' and c.owner in ('TEST'))
loop
begin
execute immediate 'alter table ' || c1.owner || '.' || c1.table_name || ' modify ' || c1.column_name || ' ' || c1.data_type || '(' || c1.data_length || ' char)';
exception
when others
then
null;
end;
end loop;
end;
/