SA0134 : Do not interleave DML with DDL statements. Group DDL statements at the beginning of procedures followed by DML statements
The topic describes the SA0134 analysis rule.
Do not interleave DML with DDL statements. Group DDL statements at the beginning of procedures followed by DML statements
The rule checks stored procedures, triggers and functions for having a DDL statements placed between DML statements.
If DDL operations are performed within a procedure or batch, the procedure or batch is recompiled when it encounters the first subsequent DML operation affecting the table involved in the DDL.
The rule has a Batch scope and is applied only on the SQL script.
Suppress rule reporting a rule violation in case a comment containing the value of this parameter is found close to the source of violation.
The rule does not need Analysis Context or SQL Connection.
Design Rules, Performance Rules
1CREATE PROCEDURE proc_SQLEnlight_Test_SA0134 2AS 3-- Then DML 4create table dbo.t1 (a int) 5-- create index idx_t1 on t1(a) 6-- create table dbo.t2 (a int) 7 8select * from dbo.t1 9 10select * from dbo.t1 WHERE a = 1 -- 1 11 12select * from dbo.t1 WHERE a = 1 -- 2 13 14create index idx_t1 on t1(a); -- IGNORE:SA0134 15 16select * from dbo.t1 WHERE a = 2 -- 1 17 18select * from dbo.t1 WHERE a = 2 -- 2 19 20create table dbo.t2 (a int) 21 22select * from dbo.t2 -- 1 23 24select * from dbo.t2 -- 2 25 26--DROP INDEX idx_t1 ON dbo.t1 27 28select * from dbo.t1 WHERE a = 2 -- 3
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