SELECT ROWNUM,ZZ_TEST.* FROM ZZ_TEST;
1 2 test 2 2 test 3 3 test 4 4 test 5 1 test
SELECT ROWNUM,ZZ_TEST.* FROM ZZ_TEST ORDER BY ZZ_TEST."name"
1 2 test 2 2 test 5 1 test 4 4 test 3 3 test
select * from table(dbms_xplan.display());
------------------------------------------------------------------------------- | Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | ------------------------------------------------------------------------------- | 0 | SELECT STATEMENT | | 1 | 8 | 16 (7)| 00:00:01 | | 1 | SORT ORDER BY | | 1 | 8 | 16 (7)| 00:00:01 | | 2 | COUNT | | | | | | | 3 | TABLE ACCESS FULL| ZZ_TEST | 1 | 8 | 15 (0)| 00:00:01 | -------------------------------------------------------------------------------
SELECT ROWNUM,ZZ_TEST.* FROM ZZ_TEST ORDER BY ZZ_TEST."name"
1 3 test 2 4 test 5 2 test 4 1 test 3 5 test
SELECT ROWNUM,ZZ_TEST.* FROM ZZ_TEST ORDER BY ZZ_TEST."name"
1 3 test 2 4 test 5 2 test 4 1 test 3 5 test
SELECT rowid as rono,ROWNUM,ZZ_TEST.* FROM ZZ_TEST ORDER BY ZZ_TEST."name"
AAA7JjAB9AAAD+RAAA 1 3 test AAA7JjAB9AAAD+RAAB 2 4 test AAA7JjAB9AAAD+RAAG 5 2 test AAA7JjAB9AAAD+RAAD 4 1 test AAA7JjAB9AAAD+RAAC 3 5 test
AAA7JjAB9AAAD+RAAA 1 3 test AAA7JjAB9AAAD+RAAB 2 4 test AAA7JjAB9AAAD+RAAG 5 2 test AAA7JjAB9AAAD+RAAD 4 1 test AAA7JjAB9AAAD+RAAC 3 5 test
select ROWNUM ,t.* from (SELECT rowid rono,ZZ_TEST.* FROM ZZ_TEST ORDER BY ZZ_TEST."name") t
select * from user_tables
select table_name from user_tables;
SELECT id,QUESTION,QUESTIONCOMMENT FROM "ASKDBA_QUESTION" where ID IN (63,62,65,61,64);
61 测试问题101 测试问题101 62 测试问题102 测试问题102 63 测试问题103 测试问题103 64 测试问题104 测试问题104 65 测试问题106 测试问题106
select id,title from info
where id in ('3,1,2,5,4')
order by charindex(','+convert(varchar,ID)+',',',3,1,2,5,4,')
CHARINDEX ( expression1 , expression2 [ , start_location ] )
select name,pass from dps_user where
charindex('张三',dps_user.name)> 0
SELECT id,QUESTION,QUESTIONCOMMENT FROM "ASKDBA_QUESTION" where ID IN (63,62,65,61,64) ORDER BY "DECODE"(id, 63,1,62,2,65,3,61,64);
63 测试问题103 测试问题103 62 测试问题102 测试问题102 65 测试问题106 测试问题106 61 测试问题101 测试问题101 64 测试问题104 测试问题104
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