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OMOP
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Changed VARCHAR(1) to CHAR(1) 

Reduces storage space required.
This commit is contained in:
Rory Jaffe 2017-09-09 09:03:33 -07:00
parent a63bcb00aa
commit cb28dbc656
1 changed files with 8 additions and 8 deletions
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16
Sql Server/OMOP CDM ddl - SQL Server.sql
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@ -49,11 +49,11 @@ CREATE TABLE concept (
domain_id VARCHAR(20) NOT NULL,
vocabulary_id VARCHAR(20) NOT NULL,
concept_class_id VARCHAR(20) NOT NULL,
standard_concept VARCHAR(1) NULL,
standard_concept CHAR(1) NULL,
concept_code VARCHAR(50) NOT NULL,
valid_start_date DATE NOT NULL,
valid_end_date DATE NOT NULL,
invalid_reason VARCHAR(1) NULL
invalid_reason CHAR(1) NULL
)
;
@ -97,7 +97,7 @@ CREATE TABLE concept_relationship (
relationship_id VARCHAR(20) NOT NULL,
valid_start_date DATE NOT NULL,
valid_end_date DATE NOT NULL,
invalid_reason VARCHAR(1) NULL)
invalid_reason CHAR(1) NULL)
;
@ -105,8 +105,8 @@ CREATE TABLE concept_relationship (
CREATE TABLE relationship (
relationship_id VARCHAR(20) NOT NULL,
relationship_name VARCHAR(255) NOT NULL,
is_hierarchical VARCHAR(1) NOT NULL,
defines_ancestry VARCHAR(1) NOT NULL,
is_hierarchical CHAR(1) NOT NULL,
defines_ancestry CHAR(1) NOT NULL,
reverse_relationship_id VARCHAR(20) NOT NULL,
relationship_concept_id INTEGER NOT NULL
)
@ -140,7 +140,7 @@ CREATE TABLE source_to_concept_map (
target_vocabulary_id VARCHAR(20) NOT NULL,
valid_start_date DATE NOT NULL,
valid_end_date DATE NOT NULL,
invalid_reason VARCHAR(1) NULL
invalid_reason CHAR(1) NULL
)
;
@ -159,7 +159,7 @@ CREATE TABLE drug_strength (
box_size INTEGER NULL,
valid_start_date DATE NOT NULL,
valid_end_date DATE NOT NULL,
invalid_reason VARCHAR(1) NULL
invalid_reason CHAR(1) NULL
)
;
@ -471,7 +471,7 @@ CREATE TABLE note_nlp
nlp_system VARCHAR(250) NULL ,
nlp_date DATE NOT NULL ,
nlp_datetime DATETIME2 NULL ,
term_exists VARCHAR(1) NULL ,
term_exists CHAR(1) NULL ,
term_temporal VARCHAR(50) NULL ,
term_modifiers VARCHAR(2000) NULL
)